WEITRON MMBZ5221BW Series Surface Mount Zener Diode P b Lead(Pb)-Free ZENER DIODE 350m WATTS Features: * Planar Die Construction * 200mW Power Dissipation on FR-4 PCB * General purpose, Medium Current * Ideally Suited for Automated Assembly 3 1 2 1 3 SOT-323(SC-70) SOT-323 Outline Demensions Unit:mm SOT-323 A B T OP V IE W C D E G H K J WEITRON http://www.weitron.com.tw L M 1/3 Dim A B C D E G H J K L M Min 0.30 1.15 2.00 0.30 1.20 1.80 0.00 0.80 0.42 0.10 Max 0.40 1.35 2.40 0.65 0.40 1.40 2.20 0.10 1.00 0.53 0.25 17-Aug-05 WEITRON MMBZ5221BW Series Maximum Ratings and Electrical Characteristics (TA=25°C Unless Otherwise Noted) Characteristics Symbol Value Unit Forward Voltage @ IF=10mA VF 0.9 V Total Power Dissipation(1) PD 350 mW RθJA 357 K/W TJ,TSTG -65 to +150 ˚C Thermal Resistance Junction to Ambient Air(1) Junction and Storage Temperature Range NOTES: 1. Valid provided that device terminals are kept at ambient temperature. WEITRON http://www.weitron.com.tw 2/3 17-Aug-05 MMBZ5221BW Series Electrical Characteristics @ TA=25˚C unless otherwise specified Maximum Zener Impedance Zener Voltage Range(2) Type Number Marking Code VZ@IZT Nom (V) Min (V) IZT Max (V) ZZK@IZK =0.25mA ZZT@IZT mA Ω Maximum Reverse Leakage Current IR @ VR µA V MMBZ5221BW KC1 2.4 2.28 2.52 20 30 1200 100 1.0 MMBZ5223BW KC3 2.7 2.57 2.84 20 30 1300 75 1.0 MMBZ5225BW KC5 3.0 2.85 3.15 20 30 1600 50 1.0 MMBZ5226BW KG1 3.3 3.14 3.47 20 28 1600 25 1.0 MMBZ5227BW KG2 3.6 3.42 3.78 20 24 1700 15 1.0 MMBZ5228BW KG3 3.9 3.71 4.10 20 23 1900 10 1.0 MMBZ5229BW KG4 4.3 4.09 4.52 20 22 2000 5.0 1.0 MMBZ5230BW KG5 4.7 4.47 4.94 20 19 1900 5.0 2.0 MMBZ5231BW KE1 5.1 4.85 5.36 20 17 1600 5.0 2.0 MMBZ5232BW KE2 5.6 5.32 5.88 20 11 1600 5.0 3.0 MMBZ5234BW KE4 6.2 5.89 6.51 20 7.0 1000 5.0 4.0 MMBZ5235BW KE5 6.8 6.46 7.14 20 5.0 750 3.0 5.0 MMBZ5236BW KF1 7.5 7.13 7.88 20 6.0 500 3.0 6.0 MMBZ5237BW KF2 8.2 7.79 8.61 20 8.0 500 3.0 6.5 MMBZ5239BW KF4 9.1 8.65 9.56 20 10 600 3.0 7.0 MMBZ5240BW KF5 10 9.50 10.50 20 17 600 3.0 8.0 MMBZ5241BW KH1 11 10.45 11.55 20 22 600 2.0 8.4 MMBZ5242BW KH2 12 11.40 12.60 20 30 600 1.0 9.1 MMBZ5243BW KH3 13 12.35 13.65 9.5 13 600 0.5 9.9 MMBZ5245BW KH5 15 14.25 15.75 8.5 16 600 0.1 11 MMBZ5246BW KJ1 16 15.20 16.80 7.8 17 600 0.1 12 MMBZ5248BW KJ3 18 17.10 18.90 7.0 21 600 0.1 14 MMBZ5250BW KJ5 20 19.00 21.00 6.2 25 600 0.1 15 MMBZ5251BW KK1 22 20.90 23.10 5.6 29 600 0.1 17 MMBZ5252BW KK2 24 22.80 25.20 5.2 33 600 0.1 18 MMBZ5254BW KK4 27 25.65 28.35 5.0 41 600 0.1 21 MMBZ5255BW KK5 28 26.60 29.40 4.5 44 600 0.1 21 MMBZ5256BW KM1 30 28.50 31.50 4.2 49 600 0.1 23 MMBZ5257BW KM2 33 31.35 34.65 3.8 58 700 0.1 25 MMBZ5258BW KM3 36 34.20 37.80 3.4 70 700 0.1 27 MMBZ5259BW KM4 39 37.05 40.95 3.2 80 800 0.1 30 Notes: 2. Tested with pulses, Tp ≤ 1.0ms. WEITRON http//www.weitron.com.tw 3/3 17-Aug-05