JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD
SOT-323 Plastic-Encapsulate Diode
MMBZ5221BW-MMBZ5259BW ZENER DIODE
FEATURES：
Planar Die Construction
200mW Power Dissipation on FR-4 PCB
General purpose, Medium Current
Ideally Suited for Automated Assembly
Marking: see table on page2 The first code
Maximum Ratings @ Ta= 25℃ unless otherwise specified
Characteristic Symbol Value Unit
Forward Voltage @ IF = 10mA VF 0.9 V
Power Dissipation Pd 200 mW
Thermal Resistance, Junction to Ambient Air RθJA 625 ℃/W
Operating and Storage Temperature Range Tj, TSTG -65 to +150 ℃
SO
T
- 323
ELECTRICAL CHARACTERISTICS (Tamb=25℃ unless otherwise specified)
Zener Voltage Range (Note 1) Test
Current
Maximum Zener
Impedance (Note 2)
Maximum Reverse
Leakage Current
(Note 1)
Type Number Marking
Code
VZ @ IZT IZT
ZZT @
IZT
ZZK @ IZK =
0.25mA IR @VR
Nom (V) Min (V) Max (V) mA Ω µA V
MMBZ5221BW KC1 2.4 2.28 2.52 20 30 1200 100 1.0
MMBZ5222BW KC2 2.5 2.38 2.63 20 30 1250 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
MMBZ5233BW KE3 6.0 5.70 6.30 20 7 1600 5.0 3.5
MMBZ5234BW KE4 6.2 5.89 6.51 20 7 1000 5.0 4.0
MMBZ5235BW KE5 6.8 6.46 7.14 20 5 750 3.0 5.0
MMBZ5236BW KF1 7.5 7.13 7.88 20 6 500 3.0 6.0
MMBZ5237BW KF2 8.2 7.79 8.61 20 8 500 3.0 6.5
MMBZ5238BW KF3 8.7 8.27 9.14 20 8 600 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
MMBZ5244BW KH4 14 13.30 14.70 9.0 15 600 0.1 10
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
MMBA5247BW KJ2 17 16.15 17.85 7.4 19 600 0.1 13
MMBZ5248BW KJ3 18 17.10 18.90 7.0 21 600 0.1 14
MMBZ5249BW KJ4 19 18.05 19.95 6.6 23 600 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
MMBZ5253BW KK3 25 23.75 26.25 5.0 35 600 0.1 19
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: 1. Short duration test pulse used to minimize self-heating effect.
2. f = 1KHz.
