chip inductors for critical applications st312raa 0603 chip inductors document st195-1 revised 11/06/12 small size, exceptional q and high srfs make these inductors ideal for high frequency applications where size is at a premium. they also have excellent dcr and current carrying characteristics. typical l vs frequency typical q vs frequency a b c d max max max ref e f g h i j 0.071 0.044 0.040 0.015 0.030 0.013 0.034 0.040 0.025 0.025 1,80 1,12 1,02 0,38 0,76 0,33 0,86 1,02 0,64 0,64 current derating core material ceramic terminations silver-palladium-platinum-glass frit. other termina - tions available at additional cost. ambient temperature C40c to +125c with imax current, +125c to +140c with derated current storage temperature component: C55c to +140c. tape and reel packaging: C55c to +80c resistance to soldering heat max three 40 second refows at +260c, parts cooled to room temperature between cycles temperature coeffcient of inductance (tcl) +25 to +155 ppm/c moisture sensitivity level (msl) 1 (unlimited foor life at <30c / 85% relative humidity) packaging 2000 per 7 reel paper tape: 8 mm wide, 1.0 mm thick, 4 mm pocket spacing note: dimensions are before optional solder application. for maximum overall dimensions including solder, add 0.0025 in / 0,064 mm to b and 0.006 in / 0,15 mm to a and c. i i j h a b ov erall f g e ter minal f c d te r minal wraparound: appro x 0.007/0,18 both ends suggested land p attern -40 -20 02 04 06 08 0 100 140 120 ambient temperature (c) 120 110 100 90 80 70 60 50 40 30 20 10 0 pe r cent of rated rms i 25c 10 100 frequency (mhz) inductance (nh) 1000 10000 200 175 0 25 50 75 100 125 150 120 nh 68 nh 33 nh 3.9 nh 12 nh 120 nh 33 nh 3.9 nh 68 nh 12 nh 0 10 20 30 40 50 60 70 80 90 100 110 120 q f actor 11 0 10000 100 1000 frequenc y (mhz) ? ? coilcraft, inc. 2012 1102 silv er lak e road car y, il 60013 phone 800-981-0363 fa x 847-639-1508 email c ps@coilcraft.com www . coilcraft-cps . com this pr oduct may not be used in medical or hig h risk applications without prior coilcraft appr oval. specifications subject to change without notice. please check our web site for latest infor mation.
st312raa series (0603) srf dcr inductance 2 percent q 900 mhz 1.7 ghz min 4 max 5 imax color part number 1 (nh) tolerance min 3 l typ q typ l typ q typ (mhz) (ohms) (ma) code st312raa1n6jlz 1.6 @ 250 mhz 5 26 1.67 49 1.65 63 >5000 0.022 700 red st312raa1n8jlz 1.8 @ 250 mhz 5 21 1.83 35 1.86 50 >5000 0.045 700 black st312raa3n3_lz 3.3 @ 250 mhz 5,2 35 3.31 75 3.38 88 >5000 0.045 700 blue st312raa3n6_lz 3.6 @ 250 mhz 5,2 18 3.72 53 3.71 65 >5000 0.063 700 red st312raa3n9_lz 3.9 @ 250 mhz 5,2 20 3.95 49 3.96 67 >5000 0.080 700 brown st312raa4n3_lz 4.3 @ 250 mhz 5,2 29 4.32 50 4.33 70 >5000 0.063 700 orange st312raa4n7_lz 4.7 @ 250 mhz 5,2 18 4.72 47 4.75 57 >5000 0.116 605 violet st312raa5n1_lz 5.1 @ 250 mhz 5,2 20 4.93 47 4.95 56 >5000 0.140 510 green st312raa5n6_lz 5.6 @ 250 mhz 5,2,1 25 5.77 63 6.05 80 4760 0.075 700 black st312raa6n8_lz 6.8 @ 250 mhz 5,2,1 28 6.75 60 7.10 81 4660 0.110 700 red st312raa7n5_lz 7.5 @ 250 mhz 5,2,1 23 7.70 60 7.82 65 4320 0.106 700 brown st312raa8n2_lz 8.2 @ 250 mhz 5,2,1 26 8.25 82 8.37 87 3880 0.115 700 orange st312raa8n7_lz 8.7 @ 250 mhz 5,2,1 27 8.86 62 9.32 58 3680 0.109 700 yellow st312raa9n5_lz 9.5 @ 250 mhz 5,2,1 22 9.70 59 9.92 61 4100 0.135 700 blue st312raa10n_lz 10 @ 250 mhz 5,2,1 28 10.0 66 10.6 83 3860 0.130 700 orange st312raa11n_lz 11 @ 250 mhz 5,2,1 26 11.0 53 11.5 56 3640 0.130 700 gray st312raa12n_lz 12 @ 250 mhz 5,2,1 29 12.3 72 13.5 83 3220 0.130 620 yellow st312raa15n_lz 15 @ 250 mhz 5,2,1 28 15.4 64 16.8 89 3020 0.170 600 green st312raa16n_lz 16 @ 250 mhz 5,2,1 29 16.2 55 17.3 52 3040 0.170 600 white st312raa18n_lz 18 @ 250 mhz 5,2,1 29 18.7 70 21.4 69 2680 0.170 600 blue st312raa22n_lz 22 @ 250 mhz 5,2,1 31 22.8 73 26.1 71 2380 0.190 560 violet st312raa23n_lz 23 @ 250 mhz 5,2,1 39 24.1 71 28.0 67 2380 0.190 560 orange st312raa24n_lz 24 @ 250 mhz 5,2,1 36 24.5 45 28.7 39 2380 0.190 560 black st312raa27n_lz 27 @ 250 mhz 5,2,1 32 29.2 74 34.6 65 2380 0.220 530 gray st312raa30n_lz 30 @ 250 mhz 5,2,1 32 31.4 47 39.9 28 2240 0.220 500 brown st312raa33n_lz 33 @ 250 mhz 5,2,1 33 36.0 67 49.5 42 1900 0.220 500 white st312raa36n_lz 36 @ 250 mhz 5,2,1 32 39.4 47 52.7 24 1960 0.250 460 red st312raa39n_lz 39 @ 250 mhz 5,2,1 36 42.7 60 60.2 40 1740 0.250 460 black st312raa43n_lz 43 @ 250 mhz 5,2,1 28 47.0 44 64.9 21 1580 0.280 440 orange st312raa47n_lz 47 @ 200 mhz 5,2,1 35 52.2 62 77.2 35 1560 0.280 440 brown st312raa51n_lz 51 @ 200 mhz 5,2,1 38 55.5 69 82.2 34 1560 0.270 420 blue st312raa56n_lz 56 @ 200 mhz 5,2,1 37 62.5 56 97.0 26 1480 0.310 420 red st312raa68n_lz 68 @ 200 mhz 5,2,1 35 80.5 54 168 21 1380 0.340 410 orange st312raa72n_lz 72 @ 150 mhz 5,2,1 35 82.0 53 135 20 1360 0.490 340 yellow st312raa82n_lz 82 @ 150 mhz 5,2,1 29 96.2 54 177 21 1300 0.540 340 green st312raar10_lz 100 @ 150 mhz 5,2,1 28 124 49 1140 0.580 310 blue st312raar11_lz 110 @ 150 mhz 5,2,1 30 138 43 1080 0.610 310 violet st312raar12_lz 120 @ 150 mhz 5,2,1 28 166 39 1020 0.650 270 gray st312raar15_lz 150 @ 150 mhz 5,2,1 28 250 25 900 0.915 250 white st312raar18_lz 180 @ 100 mhz 5,2,1 25 305 22 820 1.25 210 black 1. when ordering, specify tolerance, termination and testing codes: st312raar39jlz tolerance: f = 1% g = 2% j = 5% termination: l = rohs compliant silver-palladium-platinum glass frit. special order: s = tin-lead (63/37) over silver-platinum-glass frit. t = tin-silver-copper (95.5/4/0.5) over silver-platinum- glass frit. r = tin over nickel over silver-platinum-glass frit. p = tin-lead (63/37) over tin over nickel over silver- platinum-glass frit. q = tin-silver-copper (95.5/4/0.5) over tin over nickel over silver-platinum-glass frit. testing: z = cots h = screening per coilcraft cp-sa-10001 0603 chip inductors 2. inductance measured at 250 mhz using a coilcraft smd-a test fxture and coilcraft-provided correlation pieces with an agilent/hp 4286a impedance analyzer or equivalent. 3. q measured at the same frequency as inductance using an agilent/ hp 4291a with an agilent/hp 16197a test fxture or equivalents. 4. srf measured using an agilent/hp 8753es network analyzer and a coilcraft ccf1232 test fxture. 5. dcr measured on a keithley 580 micro-ohmmeter and a coilcraft ccf1010 test fxture. 6. electrical specifcations at 25c. refer to doc 362 soldering surface mount components before soldering. document st195-2 revised 11/06/12 ? ? coilcraft, inc. 2012 1102 silv er lak e road car y, il 60013 phone 800-981-0363 fa x 847-639-1508 email c ps@coilcraft.com www . coilcraft-cps . com this pr oduct may not be used in medical or hig h risk applications without prior coilcraft appr oval. specifications subject to change without notice. please check our web site for latest infor mation.
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