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| WEITRON Surface Mount Zener Diode P b Lead(Pb)-Free Features: * 225 mW Rating on FR-4 or FR-5 Board * ZenerVoltage Range - 2.4 V to 91 V * Small Package Size for High Density Applications * ESD Rating of Class 3 (>16 KV) per Human Body Model MMBZ5221B Series SMALL SIGNAL ZENER DIODES 225m WATTS 3 1 2 SOT-23 3 2 1 SOT-23 Outline Dimensions Unit:m m Dim A B C D E G H J K L M M in 0.35 1.19 2.10 0.85 0.46 1.70 2.70 0.01 0.89 0.30 0.076 M ax 0.51 1.40 3.00 1.05 1.00 2.10 3.10 0.13 1.10 0.61 0.25 WEITRON http://www.weitron.com.tw 1/3 Rev.A 19-Nov-09 MMBZ5221B Series Maximum Ratings @ Ta= 25 unless otherwise specified WEITRON Symbol VF Pd RJA Tj, TSTG Characteristic Forward Voltage @ IF = 10mA Power Dissipation Thermal Resistance, Junction to Ambient Air Operating and Storage Temperature Range Value 0.9 225 556 -65 to +150 Unit V mW /W Leakage Current IR @ VR A 100 100 75 75 50 25 15 10 5 5 5 5 5 5 3 3 3 3 3 3 2 1 0.5 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Volts 1 1 1 1 1 1 1 1 1 2 2 3 3.5 4 5 6 6.5 6.5 7 8 8.4 9.1 9.9 10 11 12 13 14 14 15 17 18 19 21 21 23 25 27 30 33 36 39 43 46 47 52 56 62 68 69 ELECTRICAL CHARACTERISTICS (Pinout: 1-Anode, 2-NC, 3-Cathode) (VF = 0.9 V Max @ IF = 10 mA for all types.) Zener Voltage (Note 3) Device Marking 18A 18B 18C 18D 18E 8A 8B 8C 8D 8E 8F 8G 8H 8J 8K 8L 8M 8N 8P 8Q 8R 8S 8T 8U 8V 8W 8X 8Y 8Z 81A 81B 81C 81D 81E 81F 81G 81H 81J 81K 81L 81M 81N 81P 81Q 81R 81S 81T 81U 81V 81W VZ (Volts) Min 2.28 2.37 2.56 2.66 2.85 3.13 3.42 3.70 4.08 4.46 4.84 5.32 5.70 5.89 6.46 7.12 7.79 8.26 8.64 9.50 10.4 11.40 12.35 13.30 14.25 15.20 16.15 17.10 18.05 19.00 20.90 22.80 23.75 25.65 26.60 28.50 31.35 34.20 37.05 40.85 44.65 48.45 53.20 57.00 58.90 64.60 71.25 77.90 82.65 86.45 Nom 2.4 2.5 2.7 2.8 3 3.3 3.6 3.9 4.3 4.7 5.1 5.6 6 6.2 6.8 7.5 8.2 8.7 9.1 10 11 12 13 14 15 16 17 18 19 20 22 24 25 27 28 30 33 36 39 43 47 51 56 60 62 68 75 82 87 91 Max 2.52 2.63 2.84 2.94 3.15 3.47 3.78 4.10 4.52 4.94 5.36 5.88 6.30 6.51 7.14 7.88 8.61 9.14 9.56 10.50 11.55 12.60 13.65 14.70 15.75 16.80 17.85 18.90 19.95 21.00 23.10 25.20 26.25 28.35 29.40 31.50 34.65 37.80 40.95 45.15 49.35 53.55 58.80 63.00 65.10 71.40 78.75 86.10 91.35 95.55 @ IZT mA 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 9.5 9 8.5 7.8 7.4 7 6.6 6.2 5.6 5.2 5 4.6 4.5 4.2 3.8 3.4 3.2 3 2.7 2.5 2.2 2.1 2 1.8 1.7 1.5 1.4 1.4 30 30 30 30 29 28 24 23 22 19 17 11 7 7 5 6 8 8 10 17 22 30 13 15 16 17 19 21 23 25 29 33 35 41 44 49 58 70 80 93 105 125 150 170 185 230 270 330 370 400 1200 1250 1300 1400 1600 1600 1700 1900 2000 1900 1600 1600 1600 1000 750 500 500 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 700 700 800 900 1000 1100 1300 1400 1400 1600 1700 2000 2200 2300 Zener Impedance ZZT @ IZT ZZK @ IZK mA 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 Device MMBZ5221B MMBZ5222B MMBZ5223B MMBZ5224B MMBZ5225B MMBZ5226B MMBZ5227B MMBZ5228B MMBZ5229B MMBZ5230B MMBZ5231B MMBZ5232B MMBZ5233B MMBZ5234B MMBZ5235B MMBZ5236B MMBZ5237B MMBZ5238B MMBZ5239B MMBZ5240B MMBZ5241B MMBZ5242B MMBZ5243B MMBZ5244B MMBZ5245B MMBZ5246B MMBZ5247B MMBZ5248B MMBZ5249B MMBZ5250B MMBZ5251B MMBZ5252B MMBZ5253B MMBZ5254B MMBZ5255B MMBZ5256B MMBZ5257B MMBZ5258B MMBZ5259B MMBZ5260B MMBZ5261B MMBZ5262B MMBZ5263B MMBZ5264B MMBZ5265B MMBZ5266B MMBZ5267B MMBZ5268B MMBZ5269B MMBZ5270B 3.Zener voltage is measured with a pulse test current I Z at an ambient temperature of 25C WEITRON http://www.weitron.com.tw 2/3 Rev.A 19-Nov-09 MMBZ5221B Series Typical characteristics 8 100 TYPICAL TC VALUES FOR LMBZ5221BLT1 SERIES WEITRON TYPICAL TC VALUES FOR LMBZ5221BLT1 SERIES 7 6 5 4 3 10 2 1 0 -1 -2 -3 2 3 4 5 6 7 8 9 10 11 12 1 10 VZ, NOMINAL ZENER VOLTAGE (V) 100 VZ, NOMINAL ZENER VOLTAGE (V) Figure 1. Temperature Coefficients (Temperature Range -55C to +150C) 1000 TJ = 25 C IZ(AC) = 0.1 IZ(DC) f = 1 kHz 1000 Figure 2. Temperature Coefficients (Temperature Range -55C to +150C) 75 V (LMBZ5267BLT1) 91 V (LMBZ5270BLT1) ? 100 100 10 10 150 C 1 1 10 VZ, NOMINAL ZENER VOLTAGE 100 1 0.4 0.6 0.7 0.8 0.9 1.0 1.1 1.2 0.5 VF, FORWARD VOLTAGE (V) Figure 3. Effect of Zener Voltage on Zener Impedance 1000 1000 Figure 4. Typical Forward Voltage 100 100 10 1 +150 C 0.1 BIAS AT 50% OF VZ NOM 0.01 10 0.001 +25 C 0.0001 1 1 10 VZ, NOMINAL ZENER VOLTAGE (V) 100 0.00001 0 10 20 30 40 50 60 -55 C 70 80 90 V Z, NOMINAL ZENER VOLTAGE (V) Figure 5. Typical Capacitance 100 100 Figure 6. Typical Leakage Current 10 10 1 1 0.1 0.1 0.01 0 2 4 6 VZ, ZENER VOLTAGE (V) 8 10 12 0.01 10 30 50 VZ, ZENER VOLTAGE (V) 70 90 Figure 7. Zener Voltage versus Zener Current (VZ Up to 12 V) Figure 8. Zener Voltage versus Zener Current (12 V to 91 V) WEITRON http://www.weitron.com.tw 3/3 Rev.A 19-Nov-09 |
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