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MMBZ5221B – MMBZ5259B
Surface Mount Zener Diode
Voltage Range
2.4 to 39 Volts
350m Watts Power Dissipation
Features
Planar die construction
350mW power dissipation on FR-4 PCB
general purpose, medium current
Ideally suited for automated assembly
processes
Standard zener voltage tolerance is ±5%
tolerance with a :B: suffix
Mechanical Data
Case: SOT-23, Molded plastic
Terminals: Solderable per MIIL-STD-202,
Method 208
Polarity: See diagram
Marking: Marking Code (see table on Page 2)
Weight: 0.008 grams (approx.)
SOT-23
Dimensions in inches and (millimeters)
Maximum Ratings and Electrical Characteristics
Rating at 25℃ambient temperature unless otherwise specified.
Maximum Ratings
Type Number Symbol Value Units
Forward Voltage @ IF = 10mA VF 0.9 V
Power Dissipation (Note 1) Pd 350 mW
Thermal Resistance Junction to Ambient Air
(Note 1) RθJA 357 K/W
Operating and Storage Temperature Range TJ ,TSTG -65 to + 150 OC
Notes: 1. Valid Provided that Terminals are Kept at Ambient Temperature.
2. Tested with Pulses, Tp≦1.0ms.
0.020(0.51)
0.015(0.37)
0.055(1.40)
0.047(1.19)
0.098(2.50)
0.083(2.10)
0.024(0.61)
0.018(0.45)
0.007(0.178)
0.003(0.076)
0.024(0.61)
0.018(0.45)
0.080(2.05)
0.070(1.78)
0.041(1.05)
0.047(0.89)
0.120(3.05)
0.104(2.65)
0.006(0.15)
0.001(0.013)
0.043(1.10)
0.035(0.89)
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RATINGS AND CHARACTERISTIC CURVES (MMBZ5221B THRU MMBZ5259B)
FIG.1- POWER DISSIPATION VS AMBIENT TEMPERATURE
P , POWER DISSIPATION (W)
D
150
0.6
T , AMBIENT TEMPERATURE ( C)
A
14013012011010090
0.5
0.4
0.3
0.2
0.1
0
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ELECTRICAL CHARACTERISTICS (TA=25OC unless otherwise noted)
Device
Device
Marking
I
ZT
Z
ZK @
I
ZK
(Note 1)
Code
Z
ZT @
I
ZT
= 0.25mA
Nom (V)
Min (V)
Max (V)
mA
Ohms
Ohms
uA
Volts
MMBZ5221B KC1 2.4 2.28 2.52 20 30 1200 100 1.0
MMBZ5223B KC3 2.7 2.57 2.84 20 30 1300 75 1.0
MMBZ5225B KC5 3.0 2.85 3.15 20 30 1600 50 1.0
MMBZ5226B KG1 3.3 3.14 3.47 20 28 1600 25 1.0
MMBZ5227B KG2 3.6 3.42 3.78 20 24 1700 15 1.0
MMBZ5228B KG3 3.9 3.71 4.10 20 23 1900 10 1.0
MMBZ5229B KG4 4.3 4.09 4.52 20 22 2000 5.0 1.0
MMBZ5230B KG5 4.7 4.47 4.94 20 19 1900 5.0 2.0
MMBZ5231B KE1 5.1 4.85 5.36 20 17 1600 5.0 2.0
MMBZ5232B KE2 5.6 5.32 5.88 20 11 1600 5.0 3.0
MMBZ5233B KE3 6.0 5.70 6.30 20 7 1600 5.0 3.5
MMBZ5234B KE4 6.2 5.89 6.51 20 7 1000 5.0 4.0
MMBZ5235B KE5 6.8 6.46 7.14 20 5 750 3.0 5.0
MMBZ5236B KF1 7.5 7.13 7.88 20 6 500 3.0 6.0
MMBZ5237B KF2 8.2 7.79 8.61 20 8 500 3.0 6.5
MMBZ5238B KF3 8.7 8.27 9.14 20 8 600 3.0 6.5
MMBZ5239B KF4 9.1 8.65 9.56 20 10 600 3.0 7.0
MMBZ5240B KF5 10 9.50 10.50 20 17 600 3.0 8.0
MMBZ5241B KH1 11 10.45 11.55 20 22 600 2.0 8.4
MMBZ5242B KH2 12 11.40 12.60 20 30 600 1.0 9.1
MMBZ5243B KH3 13 12.35 13.65 9.5 13 600 0.5 9.9
MMBZ5245B KH5 15 14.25 15.75 8.5 16 600 0.1 11
MMBZ5246B KJ1 16 15.20 16.80 7.8 17 600 0.1 12
MMBZ5248B KJ3 18 17.10 18.90 7.0 21 600 0.1 14
MMBZ5250B KJ5 20 19.00 21.00 6.2 25 600 0.1 15
MMBZ5251B KK1 22 20.90 23.10 5.6 29 600 0.1 17
MMBZ5252B KK2 24 22.80 25.20 5.2 33 600 0.1 18
MMBZ5254B KK4 27 25.65 28.35 5.0 41 600 0.1 21
MMBZ5255B KK5 28 26.60 29.40 4.5 44 600 0.1 21
MMBZ5256B KM1 30 28.50 31.50 4.2 49 600 0.1 23
MMBZ5257B KM2 33 31.35 34.65 3.8 58 700 0.1 25
MMBZ5258B KM3 36 34.20 37.80 3.4 70 700 0.1 27
MMBZ5259B KM4 39 37.05 40.95 3.2 80 800 0.1 30
Notes: 1: Valid provided that device terminals are kept at ambient temperature.
2. Tested with pulses, Tp≦ 1.0ms.
I
R @
V
R
Maximum Zener
Maximum Reverse
V
z
@ I
zt
Zener Voltage Range (Note 2)
Impedance
Leakage Current
