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2.5 2.0 a for audio & visual, office equipment crystal units surface mount type cx-2520sb features crystal unit for audio-visual, office equipment ultra-miniature and low profile. (2.5x2.0x0.45mm) ceramic package. a lead free product. reflow compatible. applications digital electronics audio visual, office equipment dimensions cx-2520 specifications table1 motional series resistances (unit : mm) recommended land pattern (unit : mm) 2.5 0.1 1.0 0.75 2.0 0.1 0.45 0.1 0.65 0.7 #4 #3 #1 #2 #1 #2 #4 #3 0.8 0.9 0.9 0.75 0.8 0.45 connection (top view) gnd hot hot gnd #4 #3 #1 #2 items symbol specification units remarks frequency range overtone order frequency tolerance frequency temperature characteristics motional series resistance level of drive load capacitance operating temp. range storage temp. range fo 26000 ~ 60000 khz ???? fundamental ???? ? f/f 50 ppm @ 25 c ? f/t 50 ppm ref@ 25 c over operating temp range ci table 1 ohm ???? table 2 w c l 8 pf t opr ? 10 ~ + 70 c t stg ? 40 ~ + 85 c frequency range motional series resistance units ohm 26000 ~ 34999khz 35000 ~ 60000khz 100 50 frequency range level of drive units w 26000 ~ 60000khz 10(100 max.) * please inqurie about specifications other than the above. * please inquire about frequencies other than the above. table2 level of drive standard frequencies (khz) pb free rohs conforming 27000.000 27120.000 30000.000 32000.000 33000.000 33333.000 40000.000 48000.000 54000.000
crystal units surface mount type cx-2520sb 2.5 2.0 a for mobile communications, srwi features reference frequency for telecommunication systems reflow compatible using ceramic package resulting in high reliability small and low profile applications mobile communications, bluetooth, wireless lan dimensions cx-2520 specifications table1 motional series resistances (unit : mm) recommended land pattern (unit : mm) 2.5 0.1 1.0 0.75 2.0 0.1 0.45 0.1 0.65 0.7 #4 #3 #1 #2 #1 #2 #4 #3 0.8 0.9 0.9 0.75 0.8 0.45 connection (top view) gnd hot hot gnd #4 #3 #1 #2 items symbol specification units remarks frequency range overtone order frequency tolerance frequency temperature characteristics motional series resistance level of drive load capacitance operating temp. range storage temp. range fo 26000 ~ 60000 khz ???? fundamental ???? ? f/f 10 ppm @ 25 c ? f/t 15 ppm ref@ 25 c over operating temp range ci table 1 ohm ???? table 2 w c l 8 pf t opr ? 30 ~ + 85 c t stg ? 40 ~ + 85 c frequency range motional series resistance units ohm 26000 ~ 34999khz 35000 ~ 60000khz 100 50 frequency range level of drive units w 26000 ~ 60000khz 10(100 max.) * please inqurie about specifications other than the above. table2 level of drive * please inquire about frequencies other than the above. standard frequencies (khz) pb free rohs conforming 26000.000 27120.000 32000.000 38400.000 40000.000 44000.000
3.2 2.5 a for audio & visual, office equipment crystal units surface mount type cx-3225sb (cx-101f) features crystal unit for audio-nisual, office equipment. miniature and low profile (3.2x2.5x0.6mm) ceramic package. a lead free product. reflow compatible. applications digital electronics audio visual, office equipment dimensions cx-3225sb specifications (unit : mm) recommended land pattern (unit : mm) 3.2 0.1 2.5 0.1 0.55m 0.05 0.75 1.2 1.0 4-r0.2 #4 #3 #1 #2 #1 #2 #4 #3 1.0 1.0 1.05 3.6 1.3 1.3 1.05 1.85 * please inquire about frequencies other than the above. standard frequencies table1 motional series resistances table2 level of drive connection (top view) gnd hot hot gnd #4 #3 #1 #2 12000.000 13560.000 14318.180 14745.600 16000.000 18432.000 20000.000 22579.200 24000.000 24576.000 25000.000 26000.000 27000.000 27120.000 30000.000 33000.000 33333.000 40000.000 48000.000 54000.000 (khz) items symbol specification units remarks frequency range overtone order frequency tolerance frequency temperature characteristics motional series resistance level of drive load capacitance operating temp. range storage temp. range fo 12000 ~ 54000 khz ???? fundamental ???? ? f/f 50 ppm @ 25 c ? f/t 50 ppm ref@ 25 c over operating temp range ci table 1 ohm ???? table 2 w c l 8 pf t opr ? 10 ~ + 70 c t stg ? 40 ~ + 85 c frequency range motional series resistance units ohm 12000 ~ 13999khz 14000 ~ 15999khz 16000 ~ 26999khz 27000 ~ 54000khz 300 200 100 50 frequency range level of drive units w 12000 ~ 54000khz 10(100 max.) * please inqurie about specifications other than the above. pb free rohs conforming
crystal units surface mount type cx-3225sb (cx-101f) 3.2 2.5 a for mobile communications, srwi features reference frequency for telecommunication systems reflow compatible using ceramic package resulting in high reliability small and low profile applications mobile communications, bluetooth, wireless lan dimensions cx-3225sb specifications (unit : mm) recommended land pattern (unit : mm) 3.2 0.1 2.5 0.1 0.55 0.05 0.75 1.2 1.0 4-r0.2 #4 #3 #1 #2 #1 #2 #4 #3 1.0 1.0 1.05 3.6 1.3 1.3 1.05 1.85 * please inquire about frequencies other than the above. standard frequencies (khz) connection (top view) gnd hot hot gnd #4 #3 #1 #2 12000.000 13000.000 13560.000 15360.000 16000.000 19200.000 20000.000 26000.000 27120.000 32000.000 38400.000 40000.000 44000.000 items symbol specification units remarks frequency range overtone order frequency tolerance frequency temperature characteristics motional series resistance level of drive load capacitance operating temp. range storage temp. range fo 12000 ~ 54000 khz ???? fundamental ???? ? f/f 10 ppm @ 25 c ? f/t 15 ppm ref@ 25 c over operating temp range ci table 1 ohm ???? table 2 w c l 8 pf t opr ? 30 ~ + 85 c t stg ? 40 ~ + 85 c frequency range motional series resistance units ohm 12000 ~ 13999khz 14000 ~ 15999khz 16000 ~ 26999khz 27000 ~ 54000khz 300 200 100 50 frequency range level of drive units w 12000 ~ 54000khz 10(100 max.) table1 motional series resistances * please inqurie about specifications other than the above. table2 level of drive pb free rohs conforming
crystal units surface mount type cx-4025s 4.0 2.5 a for mobile communications, srwi features reference frequency for telecommunication systems reflow compatible using ceramic package resulting in high reliability small and low profile applications mobile communications, bluetooth, wireless lan dimensions cx-4025s specifications (unit : mm) recommended land pattern (unit : mm) 0.45 2.75 3.0 1.15 1.15 1.6 1.4 1.4 gnd needs to be connected to the case 4.0 0.2 0.75 0.1 2.5 0.2 4-r0.2 0.7 2 1.0 0.9 #4 #1 #3 #1 #4 #2 #2 #3 1.0 connection (top view) gnd hot hot gnd #4 #3 #1 #2 * please inquire about frequencies other than the above. standard frequencies (khz) 12000.000 13000.000 16000.000 20000.000 26000.000 32000.000 40000.000 items symbol specification units remarks frequency range overtone order frequency tolerance frequency temperature characteristics motional series resistance level of drive load capacitance operating temp. range storage temp. range fo 12000 ~ 40000 khz ???? fundamental ???? ? f/f 10 ppm @ 25 c ? f/t 15 ppm ref@ 25 c over operating temp range ci table 1 ohm ???? table 2 w c l 10 pf t opr ? 30 ~ + 85 c t stg ? 40 ~ + 85 c frequency range motional series resistance units ohm 12000 ~ 1999khz 20000 ~ 40000khz 80 50 frequency range level of drive units w 12000 ~ 40000khz 10(100 max.) table1 motional series resistances * please inqurie about specifications other than the above. table2 level of drive pb free rohs conforming
crystal units surface mount type cx-96f 5.0 3.2 a for mobile communications, srwi features reference frequency for telecommunication systems reflow compatible using ceramic package resulting in high reliability small and low profile applications mobile communications, bluetooth, wireless lan dimensions cx-96f specifications (unit : mm) recommended land pattern (unit : mm) terminals 2 and 4 need to be connected to the case 7.0 1.0 4.2 2.1 4.55 2.45 2.45 2.6 4.9 0.1 3.1 0.1 connection (top view) 0.7 0.1 1.3 2.3 1.3 0.9 4-r0.2 gnd hot hot gnd #4 #3 #4 #3 #1 #2 #1 #2 #4 #3 #1 #2 items symbol specification units remarks frequency range overtone order frequency tolerance frequency temperature characteristics motional series resistance level of drive load capacitance operating temp. range storage temp. range fo 9843.75 ~ 49999 50 ~ 120(mhz) khz ???? fundamental 3rd overtone ???? ? f/f 10 ppm @ 25 c ? f/t 15 ppm ref@ 25 c over operating temp range ci table 1 ohm ???? table 2 w c l 10 pf t opr ? 30 ~ + 85 c t stg ? 40 ~ + 85 c frequency range level of drive units w 10000 ~ 49999khz 50 ~ 120(mhz)(3rdo.t) 10(100 max.) 10(100 max.) table1 motional series resistances * please inqurie about specifications other than the above. * please inquire about frequencies other than the above. table2 level of drive standard frequencies (khz) pb free rohs conforming 12000.000 12800.000 13000.000 14400.000 16000.000 19200.000 26000.000 32000.000 40000.000 48000.000 frequency range motional series resistance units ohm 150 80 50 40 80 9843.75 ? 9999khz 10000 ? 11999khz 12000 ? 25999khz 26000 ? 49999khz 50 ? 120(mhz)
5.0 3.2 a for audio & visual, office equipment crystal units surface mount type cx-53f features crystal unit for audio-visual, office equipment. small and low profile.(5.0x3.2x1.1mm) ceramic package. product with lead free terminations. reflow compatible. applications digital electronics audio visual, office equipment dimensions cx-53f specifications (unit : mm) recommended land pattern (unit : mm) 2.4 4.1 1.9 1.9 connection 5.0 0.2 2.4 1.3 3.2 0.2 2.0 1.0 +0.1 ?0.2 1.3 items symbol specification units remarks frequency range overtone order frequency tolerance frequency temperature characteristics motional series resistance level of drive load capacitance operating temp. range storage temp. range fo 9843.75 ~ 54000 khz ???? fundamental ???? ? f/f 50 ppm @ 25 c ? f/t 50 ppm ref@ 25 c over operating temp range ci table 1 ohm ???? table 2 w c l 12 pf t opr ? 10 ~ + 70 c t stg ? 40 ~ + 85 c frequency range level of drive units w 9843.75 ~ 15999khz 16000 ~ 24999khz 25000 ~ 54000khz 10(500 max.) 10(300 max.) 10(100 max.) frequency range motional series resistance units ohm 9843.75 ~ 11999khz 12000 ~ 13999khz 14000 ~ 29999khz 30000 ~ 54000khz 200 150 100 50 * please inquire about frequencies other than the above. standard frequencies 10000.000 12000.000 14318.180 14745.600 16934.400 18432.000 22579.200 24000.000 24545.450 24576.000 27000.000 36000.000 48000.000 54000.000 (khz) table1 motional series resistances * please inqurie about specifications other than the above. table2 level of drive rohs conforming
8 .0 4.5 a for audio & visual, office equipment crystal units surface mount type cx- 8 045g features crystal unit for audio-visual, office equipment. small and low profile.(8.0x4.5x1.8mm) ceramic package. product with lead free terminations. reflow compatible. applications audio visual, office equipment dimensions cx-8045g specifications (unit : mm) recommended land pattern (unit : mm) 2.0 8.0 0.3 1.8 0.2 4.5 0.3 1.5 1.5 5.0 connection 6.6 2.8 2.4 2.4 items symbol specification units remarks frequency range overtone order frequency tolerance frequency temperature characteristics motional series resistance level of drive load capacitance operating temp. range storage temp. range fo 7200 ~ 48000 khz ???? fundamental ???? ? f/f 5 0 ppm @ 25 c ? f/t 50 ppm ref@ 25 c over operating temp range ci table 1 ohm ???? table 2 w c l 12 pf t opr ? 10 ~ + 70 c t stg ? 40 ~ + 85 c * please inquire about frequencies other than the above. standard frequencies (khz) table1 motional series resistances * please inqurie about specifications other than the above. table2 level of drive rohs conforming 20000.000 21477.270 24000.000 24576.000 27000.000 14318.180 16000.000 16384.000 16934.400 19660.800 28636.360 30000.000 32000.000 36000.000 40000.000 frequency range motional series resistance units ohm 7200 ? 9999khz 10000 ? 11999khz 12000 ? 30000khz 200 150 50 frequency range level of drive units w 7200 ? 9999khz 16000 ? 24999khz 25000 ? 32000khz 10(500 max.) 10(300 max.) 10(100 max.)
features crystal unit for automotive electronics. small and low profile.(11.8x5.5x1.8mm) ceramic package. product with lead free terminations. reflow compatible. applications digital electronics audio & visual, office equipment dimensions cx-5fd specifications (unit : mm) recommended land pattern (unit : mm) 7.7 5.0 2.5 4.0 6.5 2.7 11.8 0.3 5.5 0.3 1.8 0.2 7.0 connection 2.0 2.5 1.5 items symbol specification units remarks frequency range overtone order frequency tolerance frequency temperature characteristics motional series resistance level of drive load capacitance operating temp. range storage temp. range fo 3500 ~ 28999 29 ~60(mhz) khz ???? fundamental 3rd. overtone ???? ? f/f 50 ppm @ 25 c ? f/t 50 ppm ref@ 25 c over operating temp range ci table 1 ohm ???? table 2 w c l 12 pf t opr ? 10 ~ + 70 c t stg ? 40 ~ + 85 c standard frequencies * please inquire about frequencies other than the above. table1 motional series resistances table2 level of drive * please inqurie about specifications other than the above. 3579.545 3686.400 4000.000 6000.000 8000.000 12000.000 14318.180 16000.000 16934.400 19660.800 20000.000 (khz) rohs conforming frequency range level of drive units w 3500 ? 15999khz 16000 ? 28999khz 29 ? 60mhz 10(500 max.) 10(300 max.) 10(300 max.) frequency range motional series resistance units ohm 3500 ? 3999khz 4000 ? 7999khz 8000 ? 11999khz 12000 ? 20000khz 29 ? 60mhz 300 200 120 100 150 crystal units surface mount type cx-5fd 11. 8 5.5 a for audio & visual, office equipment
crystal units surface mount leaded type hc-49/u-s, cx-49g for audio & visual, office e quipment features crystal unit for audio & visual, office equipment. metal package, lead type. a resistance weld hermetic sealed type. suitable for high density assembly and mass production. applications digital electronics audio & visual, office equipment specifications standard frequencies table1 motional series resistances table2 level of drive * please inquire about frequencies other than the above. (khz) items symbol specification units remarks frequency range overtone order frequency tolerance frequency temperature characteristics motional series resistance level of drive load capacitance operating temp. range storage temp. range fo 3200 ~ 33999khz 30 ~ 60 (mhz) khz ???? fundamental 3rd overtone ???? ? f/f 50 ppm @ 25 c ? f/t 50 ppm ref@ 25 c over operating temp range ci table 1 ohm ???? table 2 w c l 12 pf t opr ? 10 ~ + 70 c t stg ? 40 ~ + 85 c * please inqurie about specifications other than the above. frequency range motional series resistance units ohm 3200 ~ 3499khz 3500 ~ 4099khz 4100 ~ 4799khz 4800 ~ 5999khz 6000 ~ 11999khz 12000 ~ 13499khz 13500 ~ 33999khz 30 ~ 60mhz 300 150 120 100 90 70 50 150 frequency range level of drive units w 3200 ~ 15999khz 16000 ~ 24999khz 25000 ~ 33999khz 30 ~ 60mhz 10(500 max.) 10(300 max.) 10(100 max.) 10(300 max.) 3.81max. 4.8max. 4.5max. 0.2max. 0.7 10.21max. 4.8max. 4.8max. 12.3 0.2 4.5 0.1 10.8 0.2 0.6 0.1 3.8max. 5.0max. 3.5max. 11.00max. 10.3max. 20 1 0.43 0.05 4.88 0.2 5.5 2.0 9.5 dimensions (unit : mm) recommended land pattern (unit : mm) cx-49g hc-49/u-s pb free rohs conforming 7200.000 7372.800 8000.000 10000.000 10240.000 10738.635 11000.000 11059.200 12000.000 12288.000 13500.000 14318.180 16000.000 16934.400 17280.000 17734.476 20000.000 21477.270 24000.000 24576.000 25000.000 27000.000 3200.000 3579.545 3686.400 4000.000 4194.304 4332.000 4433.619 4500.000 4915.200 6000.000 6144.000 (mhz) 35.328000 40.000000 48.000000 50.000000 54.000000 60.000000 29.491200 32.000000 33.868800
5.0 3.2 a for automotive crystal units surface mount type cx-53g features crystal unit for automotive electronics. small and low profile.(5.0x3.2x1.3mm) ceramic package. product with lead free terminations. reflow compatible. applications engine control dimensions cx-53g specifications (unit : mm) recommended land pattern (unit : mm) 2.4 4.1 1.9 1.9 connection 5.0 0.2 2.4 1.3 3.2 0.2 2.0 1.3 0.2 1.3 items symbol specification units remarks frequency range overtone order frequency tolerance frequency temperature characteristics motional series resistance level of drive load capacitance operating temp. range storage temp. range fo 9843.75 ~ 40000 khz ???? fundamental ???? ? f/f 100 ppm @ 25 c ? f/t 200 ppm ref@ 25 c over operating temp range ci table 1 ohm ???? table 2 w c l 12 pf t opr ? 40 ~ + 125 c t stg ? 40 ~ + 150 c frequency range level of drive units w 9843.75 ~ 15999khz 16000 ~ 24999khz 25000 ~ 40000khz 10(500 max.) 10(300 max.) 10(100 max.) frequency range motional series resistance units ohm 9843.75 ~ 11999khz 12000 ~ 13999khz 14000 ~ 29999khz 30000 ~ 40000khz 200 150 100 50 standard frequencies * please inquire about frequencies other than the above. table1 motional series resistances table2 level of drive * please inqurie about specifications other than the above. 10000.000 12000.000 15000.000 16000.000 18000.000 20000.000 24000.000 25000.000 (khz) rohs conforming
crystal units surface mount type cx-17f 8 .0 4.5 a for automotive features crystal unit for automotive electronics. small and low profile.(8.0x4.5x1.9mm) ceramic package, j lead type. product with lead free terminations. reflow compatible. applications engine control, tpms dimensions cx-17f specifications (unit : mm) recommended land pattern (unit : mm) 1.7 3.0 3.0 7.1 1.7 8.0 0.2 0.9 2.2 0.8 4.5 0.2 0.1 1.9 0.2 connection items symbol specification units remarks frequency range overtone order frequency tolerance frequency temperature characteristics motional series resistance level of drive load capacitance operating temp. range storage temp. range fo 8000 ~ 30000 khz ???? fundamental ???? ? f/f 100 ppm @ 25 c ? f/t 200 ppm ref@ 25 c over operating temp range ci table 1 ohm ???? table 2 w cl 12 pf t opr ? 40 ~ + 125 c t stg ? 40 ~ + 150 c frequency range level of drive units w 8000 ~ 15999khz 16000 ~ 24999khz 25000 ~ 30000khz 10(500 max.) 10(300 max.) 10(100 max.) frequency range motional series resistance units ohm 8000 ~ 9999khz 10000 ~ 11999khz 12000 ~ 30000khz 200 150 100 standard frequencies * please inquire about frequencies other than the above. table1 motional series resistances table2 level of drive * please inqurie about specifications other than the above. (khz) 8000.000 9843.750 10000.000 12000.000 13560.000 14000.000 16000.000 18000.000 20000.000 24000.000 25000.000 30000.000 rohs conforming
crystal units surface mount type cx-5fw 11. 8 5.5 a for automotive features crystal unit for automotive electronics. small and low profile.(11.8x5.5x2.5mm) ceramic package. product with lead free terminations. reflow compatible. applications engine control dimensions cx-5fw specifications (unit : mm) recommended land pattern (unit : mm) 7.7 5.0 2.5 4.0 2.7 6.5 11.8 0.3 5.5 0.3 2.5 0.3 7.0 connection 2.0 2.5 1.5 items symbol specification units remarks frequency range overtone order frequency tolerance frequency temperature characteristics motional series resistance level of drive load capacitance operating temp. range storage temp. range fo 3500 ~ 20000 khz ???? fundamental ???? ? f/f 100 ppm @ 25 c ? f/t 200 ppm ref@ 25 c over operating temp range ci table 1 ohm ???? table 2 w c l 12 pf t opr ? 40 ~ + 125 c t stg ? 40 ~ + 125 c frequency range level of drive units w frequency range motional series resistance units ohm 3500 ~ 3999khz 4000 ~ 7999khz 8000 ~ 11999khz 12000 ~ 20000khz 300 200 120 100 3500 ~ 15999khz 16000 ~ 20000khz 10(500 max.) 10(300 max.) standard frequencies * please inquire about frequencies other than the above. table1 motional series resistances table2 level of drive * please inqurie about specifications other than the above. (khz) 4000.000 5000.000 6000.000 8000.000 10000.000 12000.000 16000.000 18000.000 20000.000 rohs conforming
for automotive crystal units surface mount type hc-49/u-s, cx-49f, cx-49l features crystal unit for automotive electronics. metal package, lead type. a resistance weld hermetic sealed type. suitable for high density assembly and mass production. applications engine control specifications items symbol specification units remarks frequency range overtone order frequency tolerance frequency temperature characteristics motional series resistance level of drive load capacitance operating temp. range storage temp. range fo 3200 ~ 20000 khz ???? fundamental ???? ? f/f 100 ppm @ 25 c ? f/t 200 ppm ref@ 25 c over operating temp range ci table 1 ohm ???? table 2 w cl 12 pf t opr ? 40 ~ + 125 c t stg ? 40 ~ + 125 c frequency range level of drive units w frequency range motional series resistance units ohm 3200 ~ 3499khz 3500 ~ 4099khz 4100 ~ 4799khz 4800 ~ 5999khz 6000 ~ 11999khz 12000 ~ 13499khz 13500 ~ 20000khz 300 150 120 100 90 70 50 3200 ~ 15999khz 16000 ~ 20000khz 10(500 max.) 10(300 max.) table1 motional series resistances table2 level of drive * please inqurie about specifications other than the above. standard frequencies * please inquire about frequencies other than the above. 4000.000 5000.000 6000.000 8000.000 10000.000 12000.000 16000.000 18000.000 20000.000 (khz)
crystal units hc-49/u-s, cx-49f, cx-49l dimensions / recommended land patterns product type dimensions (unit : mm) recommended land pattern (unit : mm) cx-49l cx-49f hc-49/u-s 3.8max. 5.0max. 3.5max. 11.00max. 10.3max. 20 1 0.43 0.05 4.88 0.2 5.0 0.3 5.0 0.2 3.45 0.1 3.0 0.2 1.0 1.9 1.0 0.1 1.6 1.6 1.4 0.8 11.4 0.3 4.88 0.2 ?0 connection 2.8 +0.2 5.0 2.7 2.5 4.0 4.0 2.0 2.0 3.3 3.3 4.3 10.8 4.88 5.08max. 0.7~1.1 4.65max. 4.88 0.2 11.05max. 3.0 0.1 0.43 5.08max. 0.8~2.4 1.4 0.3 1.4 0.2 9.8max. 0.25 0.1 5.3max. t 0.20 + 0.05 ? 0.03 pb free rohs conforming pb free rohs conforming
handling notes 1. shock & drop vibration do not inflict excessive shock and mechanical vibration that exceeds the norm, such as hitting or mistakenly dropping, when transporting and mounting on a board. there are cases when pieces of crystal break, and pieces that are used become damaged, and become inoperable. when a shock or vibration that exceeds the norm has been inflicted, make sure to check the characteristics. 4. mounting precautions leaded devices the special glass, located where the lead of the retainer base comes out, is aligned with the coefficient of thermal expansio n of the lead, if the glass is damaged and cracks appear, there may be cases in which performance deteriorates and it fails to operate. consequently, when making the device adhere closely and applying solder, align the gap of the hole of the board with the gap of the lead and insert without excessive force. when making the device adhere closely to a through hole board and applying solder, be careful that the solder does not get in to the metal part of the retainer base and cause a short. putting in an insulation spacer is one more method of preventing a short circuit. when the lead is mounted floating, fix it as far as possible so that contact with other parts and the breakage due to the fat igue, and the mechanical resonance of the lead will not occur. when the lead is bent and used, do not bend the lead directly from the base, separate it 0.5mm or more and then bend it. when bending, before attaching to the board, fix the place where the lead comes out in advance and attach it after bending so that a crack do es not occur in the glass part. surface mount devices the lead of the device and the pattern of the board is soldered on the surface. since extreme deformation of the board tears off the pattern, tears off the lead metal, cracks the solder and damages the sealed part of the device and there are cases in which performance deteriorates and operation fails, use it within the stipulated bending conditions. due to the small cracks in the board resulting from mount ing, please pay sufficient attention when attaching a device at the position where the warping of the board is great. when using an automatic loading machine, as far as possible, select a type that has a small impact and use it while confirmin g that there is no damage. surface mount devices are not flow soldering compatible. 5. storage condition since the long hour high temperature and low temperature storage, as well as the storage at high humidity are causes of deter ioration in frequency accuracy and solderability. parts should be stored in temperature range of -5 to +40c?, humidity 40 to 60% rh, and avoid direct sunlight. then use within 6 months. 2. cleaning since a crystal piece can be broken by resonance when a crystal device is cleaned by ultrasonic cleaning. be careful when carrying out ultrasonic cleaning. 3. soldering conditions standard soldering iron conditions reflow conditions (example) to maintain the product reliability, please follow recommended conditions. recommended reflow conditions vary depending upon products. please check with the respective specification for details. soldering iron time crystal units 280?c ~ 340?c 3 + 1/ ? 0sec. max temperature(?c) 260?c 5?c 10sec(max) 200?c min 30-45sec. hold-time 1-2min cool down 2.5-5?c/s ramp-up 1-3?c/s time(sec.) crystal units
handling notes for proper use of crystal units 1. characteristics of crystal units the thickness of crystal vibrator of the at cut crystal unit as described in the previous page differs depending on the overt one mode. the frequency-temperature characteristics of the at cut crystal unit are tertiary curves. the diagram below shows examples of the tertiary curves that pass temperature range and frequency deviation specifications. the range enclosed by the smaller rectangular satisfies the following specification: ?0 10 -6 (-10 to 60: 25?c) the range enclosed by the larger rectangular satisfies the following specification: ?0 10 -6 (-20 to 70: 25?c) (1) relationship between thickness of crystal blank and oscillation frequency (2) examples of specifications for frequency-temperature characteristics the following equivalent constants are used near the resonance frequency. l 1 : motional inductance in the equivalent electric circuit c 1 : motional capacitance in the equivalent electric circuit r : motional resistance in the equivalent electric circuit c 0 : parallel capacitance in the equivalent electric circuit (3) equivalent electric circuit and equivalent constant of crystal unit in case of calculating the thickness of at-cut 16mhz t=1.67/16=0.104(mm) at/fundamental mode 3.5~ 33 33~100 100~150 150~200 1.67/f 5.01/f 8.35/f 11.69/f at/3?d o. t at/5?h o. t at/7?h o. t cut angle/mode overtone frequency range (mhz) formula of thickness of crystal blank f : series resonance frequency. (mhz) ?0 ?0 70 60 50 40 30 20 10 0 ?0 ?0 ?0 ?0 ?0 ?0 ?0 ?0 ?0 10 30 50 70 90 110 frequency deviation ? f/f ( 10 ? ) temperature (?c) * these are examples. required frequency-temperature specifications are determined through individual consultations. l 1 c 1 c 0 r 1 equivalent electric circuit of a quarts crystal unit
handling notes (4) items calculated by equivalent constants and load capacitance 2. oscillation circuit and crystal unit (1) equivalent circuit of oscillation circuit and oscillation conditions f s : series resonance frequency f p : parallel resonance frequency : capacitance ratio f l : load resonance frequency r l : load resistance c l : load capacitance q : quality factor the equation f l shows that f l varies as load capacitance c l connected to the crystal unit changes and that f l becomes larger. as c l becomes smaller. the equation r l shows the change in impedance with a load capacitance connected. the impedance of crystal unit becomes larger as c l becomes smaller. a simplified equivalent circuit is shown below. f s l 1 c 1 = 2 1 f p c 0 c 0 + c 1 c 1 = 2 1 l 1 c 1 c 0 = f l f s = 2( c 0 + c l ) + 1 c 1 r l r 1 = 1 + c l c 0 2 c l ? c 0 = 2 c 1 ( f l / f s ) ? 1 1 q == r 1 2 f s l 1 1 2 f s c 1 r 1 crystal unit oscillation circuit c l x l r l r crystal unit oscillation circuit c l = x c r c l : load capacitance r : negative resistance x l : reactance of crystal unit x c : reactance of oscillation circuit r l : load resonance resistance
handling notes the oscillation start-up conditions are described as r l = > | ? r | , and in order to oscillate the crystal unit accurately, it must be designed such that the negative resistance of the oscillati on circuit becomes bigger comparing with the resonance resistance value at the time of loading. this ratio is called oscillation margin degree m osc and it is one of critical factors when designing the oscillation circuit and is described as below. for oscillation circuit designing conditions, it is recommended that an oscillation circuit be designed using a negative resistance of a value five to ten times or more larger than rl calculated from the resonance resistance specification value. m osc = | ? r | / r l = > 5 in a steady oscillation state, the load resonance resistance is given as follows: r l = | ? r | the mutual conductance of the oscillation circuit decreases after the oscillation has started to continuously compensate for t he power loss due to the load resonance resistance of the crystal unit, which continues oscillation. the frequency condition is given as follows: x l = x c , x l - x c = 0 as shown in the following figure, the reactance of the crystal unit varies to a value matching the load capacitance of the oscillation circuit c l = x c . thus an oscillation frequency is determined. reactance frequency admittance ? x + x f s f l f p l e c l ?1/ f s : series resonance frequency f l : load resonance frequency f p : parallel resonance frequency
handling notes (2) changes of load capacitance and oscillation frequency as shown above, the series resonance frequency of the crystal unit changes with load capacitance c l of the oscillation circuit. in the actual oscillation circuit, however, fine adjustments of oscillation frequencies are carried out by varying c l by the trimmer capacitor or the like. the following figure shows an example of load capacitance characteristics. the slope of the characteristics varies depending on the frequency, shape, the number of overtone mode, etc. 3. crystal oscillation circuit (1) c-mos fundamental crystal oscillation circuit as shown above, the series resonance frequency of the crystal the figure on the right shows a standard c-mos inverter crystal oscillation circuit for oscillating crystal unit with fundamental mode. * rx is an element to reduce excitation current of the crystal unit preventing frequency fluctuation, but rx is not used in some cases. characteristics of the circuit when load capacitances c 1 and c 2 are changed under the condition of c 1 = c 2 are shown in the figure on the right. it is not desirable that the excessive increase of the value of condenser leads to a decrease of the negative resistance resulting in increasing the possibility of oscillation failure. r d mainly adjusts frequency characteristics of the negative resistance and is used to prevent oscillating by third overtone mode. in case of a bigger circuit of the negative resistance, there is a case it is used to prevent the abnormal oscillation. 800 700 600 500 400 300 200 100 0 0 102030405060 load capacity characteristic ? f / f ( 10 C6 ) c l (pf) frequency(mhz) negative resistance c 1 = c 2 =10pf resistance of r d 3.5~6. 9 mhz=2.2k ? 7.0~16mhz=220 ? ( ? ) 2 -100 -200 -500 -1k -2k -5k -10k 46810121416 frequency characteristics of negative resistance c 1 r d r x x tal buffer r f =1m c-mos fundamental crystal oscillation circuit c 2 variation of negative resistance with condenser capacity condenser capasity c ( c 1 = c 2 )(pf) negative resistance ( ? ) -100 16.0mhz 10.0mhz 3.57 9 545mhz 01020304050 -200 -500 -1k -2k -5k -10k
handling notes (2) c-mos overtone crystal oscillation circuit this figure shows a standard c-mos inverter crystal oscillation circuit to oscillate a crystal unit using the overtone mode. (4) method of selecting circuit constants and functions of elements c 1 : forms load capacitance of the circuit together with c 2 , l 1 and l 2 . a value of approx. 5pf is used. c 2 : forms load capacitance of the circuit together with c 1 , l 1 and l 2 . prevents fundamental wave oscillation. shall be selected so that c 2 comes between the third overtone frequency at which resonance frequency with l 2 is to make oscillation and 1/3 of the third overtone frequency. a value of 10 to 22pf is used. c 3 : a bypath capacitor l 1 : a coil to adjust load capacitance of the oscillation circuit to a value near the series. a value of several h is used. l 2 : forms load capacitance of the circuit together with c 1 , c 2 and l1. prevents fundamental wave oscillation. shall be selected so that l2 comes between the third overtone frequency at which resonance frequency with c 2 is to make oscillation and 1/3 of the third overtone frequency. a value of 10 to 22pf is used. r 1 : a q dump resistor for l 1 . as an element for preventing self-excited oscillation, a value of several k ? to several tens of k ? is used. * l 1 and r 1 might not be used. (3) selection of ics and circuit constants by frequency bands selection of ics and circuit constants by frequency bands *1: necessary for preventing overtone oscillation and must be changed depending on the frequency band or the c 1 and c 2 values. *2: used to reduce excitation current of the crystal unit. necessary for stable operation of small-sized crystal units. *3: the optimum value differs with the values of load capacitance and rd. frequency 3~4.9(mhz) 5~6.9(mhz) tc406 9 ub tc4su6 9 f 1m 7~9.9(mhz) 1500( ) 470( ) 0~1500 6~22(pf) 0( ) 10~19.9(mhz) tc74hcu04a tc7su04f tc7wu04fu 20~30(mhz) 0( ) 0( ) 6~15(pf) 6~15(pf) tc74vhcu04 tc7shu04f tc7whu04fu ic r f r d *1 r x *2 c 1 , c 2 *3 c 1 c 2 c 3 x -tal l 1 r 1 r f =1m 1000pf l 2 c-mos overtone crystal oscillation circuit there are same cases when l 1 and r 1 are matched to the value of load capacitance. frequency range tc74vhcu04 tc7shu04f tc7whu04fu ic c 1 c 2 20~60(mhz) 3~10pf 10~22pf
handling notes (5) method of checking oscillation circuit q some ics have a low upper-limit value of usable frequency, so refer to individual ic catalog to make sure that the ic can oscillate a crystal unit with an adequate negative resistance. w the following figure shows an example of a c-mos oscillation circuit. check resistance rsup is connected in series with the crystal unit to check the negative resistance. use 3 to 22pf for c 1 and c 2 , and see the table below for values of check resistance. e using a spectrum analyzer or oscilloscope, check that every oscillation is normally activated while turning the power on and off several times. for oscillation circuits with no power regulator ics, carefully check changes in the negative resistance against supply voltage and in frequencies. r when oscillation is normal, remove the check resistance before using the crystal circuit. t if oscillation is unstable or is not generated, gradually decrease the values of c 1 and c 2 until normal oscillation is obtained. y if normal oscillation cannot be generated near 10mhz or near 20mhz, replace the ic with a new one suitable for higher frequencies. (6) load capacitance and oscillation frequency of transistor/fundamental crystal oscillation circuit viewed from the connection terminals of a crystal unit, the load capacitance c l of an oscillation circuit is generally comprised of c 1 , c t , c 2 , and c 3 if stray capacitance of the circuit and the capacitance between base and emitter of the transistor are ignored. since trimmer capacitor is adjusted to c t = min. to max. for zero adjustment of the oscillation frequency, the value of c l at this time can be obtained from the following equation. when these calculation results are substituted for the following equation for load resonance frequency, the oscillation frequency can be obtained. frequency range values of check resistance 3.5~4.5mhz 1.5k 4.6~6.0mhz 1.0k 6.1~10.0mhz 800 10.1~14.0mhz 500 14.1~20.0mhz 400 c 1 c 2 r sup r f c l min. = ~ c l max. = + c 1 + c t 1 c 2 1 + c 3 1 + c 1 + c t 1 c 2 1 + c 3 1 ? 1 ? 1 f l f s = 2( c 0 + c l ) + 1 c 1
handling notes select each circuit constant so that the adjustment ranges of upper and lower frequencies of this circuit are even on the basi s of the frequency of a single crystal unit measured using a specified load capacity, and that the margin of 8 to 10 10 -6 of the room temperature deviation of the crystal unit can be reserved. to prevent the decrease in the negative resistance, always connect the crystal unit to the base of the transistor. for transis tors used for oscillation circuits, hfe and ft are important. to obtain the large negative resistance with small current consumption, select a transistor for high frequency amplification with hfe of over 250 and f t of 1ghz or more. (7) transistor third overtone oscillation circuit q the resonance circuit comprised of l 2 and c 3 is required on the emitter side for preventing fundamental mode crystal oscillation. set the resonance frequency to a value higher than the intermediate between fundamental wave frequency and third overtone frequency. w use l 1 , referred to as an elongation coil, to connect the load capacitance of the oscillation circuit in series. r 1 prevents self- excited oscillation by l 1 . since it is difficult in general to design the oscillation circuit having adequate negative resistance in the overtone oscillation frequency band, there are no other effective means of obtaining adequate oscillation margin except for preventing the increase of load resonance resistance r l of the crystal unit. c 5 c 4 0.01 out r 3 c 3 c 2 r 2 r 1 vcc c t c 1
handling notes to prevent decrease in the negative resistance, connect the crystal unit to the base of the transistor as in the fundamental mode crystal oscillation circuit. to use the crystal circuit for both oscillation and multiplication, connect a parallel resona nce circuit having multiplication frequency as resonance frequency to the collector of the transistor. when selecting circuit constants for zero adjustment range by trimmer capacitor, set the constants to values obtained by adding approx. 12 to 15 10 -6 to the room temperature deviation of the crystal unit, centering the value obtained by measuring the crystal unit with load capacitances in series. (when the room temperature deviation specification of the crystal unit is 10 10 -6 ) ( 8 ) excitation power of oscillation circuit normal operation of crystal units is not assured when excitation power is raised. the allowable excitation power varies depending on the shape of the crystal unit or the stability of targeted frequency. when highly accurate oscillation is required , however, it is recommended to use an oscillation circuit with an excitation power of 5 to 50 w or less. for other cases, refer to individual relevant crystal units on the pages of the catalog. (9) precautions for designing printed circuit board be sure to design printed circuit board patterns that connect a crystal unit with other oscillation elements so that the leng ths of such patterns become shortest possible to prevent deterioration of characteristics due to stray capacitances and wiring inductance. for multi-layer circuit boards, it is important not to wire the ground and other signal patterns right beneath the oscillation circuit. r l in the equation of load resonance resistance can be made equal to r s by connecting c l in series, or making it infinite, which prevents increase in the load resonance resistance. l 2 c 3 c 2 r 1 c 4 1000p vcc l 1 c 5 out r 4 r 3 r 2 c 6 c t c 1 r l r 1 = 1 + c l c 0 2
tape & reel specifications a b c d e f g h j l n o p q r s u w qty 2.0 0.1 4.0 0.1 1.5+0.1/-0 4.0 0.1 5.5 0.1 1.75 0.1 12.0 0.3 1.5+0.1/-0 3.5 0.1 2.8 0.1 1.0 0.1 0.3 0.05 330 2 100 1 13 0.2 21 0.8 2.0 0.5 13.5 0.5 5000/3000 ksx-23 2.0 0.1 4.0 0.1 1.55 0.05 4.0 0.1 5.5 0.1 1.75 0.1 12.0 0.3 1.05 0.1 4.2 0.1 2.7 0.1 0.95 0.05 0.2 0.05 180+0/-3 60 + 1/ ? 0 13 0.2 21 0.8 2.0 0.5 13 1 3000/1000 cx-4025s 2.0 0.1 4.0 0.1 1.5 0.1 8.0 0.1 5.5 0.1 1.75 0.1 12.0 0.3 1.5 0.1 5.5 0.1 3.7 0.1 1.4 0.1 0.3 0.05 330 2 178 2 80 2 100 1 13 0.2 21 0.8 2.0 0.5 13.5 + 1/ ? 0.5 5000/1000 ksx-35 cx-96f 2.0 0.1 4.0 0.1 1.55 0.1 8.0 0.1 5.5 0.1 1.75 0.1 12.0 0.2 1.55 0.1 5.4 0.1 3.6 0.1 1.7 0.1 0.25 0.05 330 2/ 254 2 100 1 13 0.2 21 0.8 2.0 0.5 13.4 + 2/ ? 0 3000/1000 cx-53f cx-53g 2.0 0.1 4.0 0.1 1.5 0.1 8.0 0.1 7.5 0.1 1.75 0.1 16.0 0.3 1.55 0.05 8.4 0.1 4.9 0.1 2.1 0.1 0.3 0.05 330 2/ 254 2 80 1 13 0.2 21 0.8 2.0 0.5 16.0 + 2/ ? 0 3000/1000 cx-8045g cx-17f 2.0 0.1 4.0 0.1 1.5 0.1 8.0 0.1 7.5 0.1 1.75 0.1 16.0 0.3 1.6 0.1 6.5 0.1 4.2 0.1 1.5 0.1 0.2 0.05 330 2/ 178 2 80 2 13 0.2 21 0.8 2.0 0.5 17.5 + 2/ ? 0 5000/1000 ksx-36 cx-49f 2.0 0.1 4.0 0.1 1.55 0.05 8.0 0.1 11.5 0.1 1.75 0.1 24.0 0.3 2.05 0.05 11.5 0.1 5.4 0.1 5.5 0.1 0.3 0.05 330 2 100 1 13 0.5 21 0.5 2.0 0.2 25.5 0.5 1000 2.0 0.1 4.0 0.1 1.55 0.05 12.0 0.1 11.5 0.1 1.75 0.1 24.0 0.3 2.05 0.05 12.2 0.1 5.85 0.1 2.8 0.1 0.3 0.05 330 2 100 1 13 0.5 21 0.5 2.0 0.5 24.4 + 2/ ? 0 1000 cx-5fw cx-5fd 2.0 0.1 4.0 0.1 1.5 0.1 16.0 0.1 11.5 0.1 1.75 0.1 24.0 0.3 2.2 0.1 ??? ??? 6.5 0.1 0.5 0.05 330 2 100 1 13 0.5 ??? ??? 25.5 + 1/ ? 0.5 5000 cx-49l a b c d e f g h j l n o p q r s u w qty 2.0 0.05 4.0 0.1 1.55 0.05 4.0 0.05 3.5 0.05 1.75 0.1 8.0 0.2 1.05 0.1 3.5 0.1 2.8 0.1 0.85 0.1 0.25 0.05 180 + 0/ ? 3 60 + 1/ ? 0 13 0.2 21 0.8 2.0 0.5 9 1 3000/1000 cx-2520sb 2.0 0.05 4.0 0.1 1.55 0.05 4.0 0.05 3.5 0.05 1.75 0.1 8.0 0.2 1.05 0.1 3.5 0.1 2.8 0.1 0.85 0.1 0.25 0.05 180+0/-3 60 + 1/ ? 0 13 0.2 21 0.8 2.0 0.5 9 1 3000/1000 cx-3225sb (cx-101f) t a p e r e e l t a p e r e e l feed direction crystal units tape & reel specifications
crystal units ordering format for crystal units please specify the following items when ordering crystal units. 1. type ____________ 2. nominal frequency ____________ hz 3. overtone order _______________ 4. frequency tolerance _____________________ 10 -6 max. (at 25?c) 5. frequency stability vs. temperature range (referred to 25?c) ________________________________ 10 -6 max, ______?c ~______?c 6. motional resistance _____________________ ? max. 7. load capacitance(c l ) _____________________ pf 8. drive level _____________________ mw 9. shunt capacitance(c o ) ______________________ pf max. 10. others ______________________________________ 11. marking ______________________________________ 12. application ______________________________________

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