- 780 -
0.037(0.95)
Max.
0.002(0.05)
Typ. Min.
0.012(0.30)
Min.
0.004(0.10)
Max.
0.053(1.35)
0.045(1.15)
0.010(0.25)
Typ. Min.
0.106(2.70)
0.091(2.30)
0.077(1.95)
0.069(1.75)
MMSZ5221BS THRU MMSZ5259BS
200mW Surface Mount Zener Diode
Voltage Range
2.4 to 39 Volts
200m Watts Power Dissipation
Features
Planar die construction
200 mW power dissipation
Ideally suited for automated assembly
processes
General purpose, medium current
Standard zener voltage tolerance is ±5%
Plastic Material – UL recognition flammability
classification 94V-0
Mechanical Data
Case: SOD-323, Plastic
Terminals: Solderable per MIIL-STD-202,
Method 208
Polarity: Cathode band
Marking: Date Code and Type Code
Type Code: See table on Page 2
Weight: 0.04 grams (approx.)
SOD-323
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 200 mW
Thermal Resistance Junction to Ambient Air
(Note 1) RθJA 625 OC /W
Operating and Storage Temperature Range TJ, TSTG -65 to +150 OC
Note: 1. Valid Provided that Device Terminals are Kept at Ambient Temperature.
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ELECTRICAL CHARACTERISTICS (TA=25OC unless otherwise noted) Typical Tem
p.
Device Coefficient o
f
Device Marking Zener Voltag
e
(Note 1)
Code
Nom (V) Min (V) Max (V) Ohms mA Ohms mA uA Volts (% / K)
MMSZ5221BS C1 2.4 2.28 2.52 30 20 1200 0.25 100 1.0 -0.075
MMSZ5222BS C2 2.5 2.38 2.63 30 20 1200 0.25 100 1.0 -0.075
MMSZ5223BS C3 2.7 2.57 2.84 30 20 1300 0.25 75 1.0 -0.075
MMSZ5225BS C5 3.0 2.85 3.15 30 20 1600 0.25 50 1.0 -0.075
MMSZ5226BS D1 3.3 3.14 3.47 28 20 1600 0.25 25 1.0 -0.070
MMSZ5227BS D2 3.6 3.42 3.78 24 20 1700 0.25 15 1.0 -0.065
MMSZ5228BS D3 3.9 3.71 4.10 23 20 1900 0.25 10.0 1.0 -0.060
MMSZ5229BS D4 4.3 4.09 4.52 22 20 2000 0.25 5.0 1.0 -0.055
MMSZ5230BS D5 4.7 4.47 4.94 19 20 1900 0.25 5.0 2.0 +/-0.030
MMSZ5231BS E1 5.1 4.85 5.36 17 20 1600 0.25 5.0 2.0 +/-0.030
MMSZ5232BS E2 5.6 5.32 5.88 11 20 1600 0.25 5.0 3.0 +0.038
MMSZ5234BS E4 6.2 5.89 6.51 7.0 20 1000 0.25 5.0 4.0 +0.045
MMSZ5235BS E5 6.8 6.46 7.14 5.0 20 750 0.25 3.0 5.0 +0.050
MMSZ5236BS F1 7.5 7.13 7.88 6.0 20 500 0.25 3.0 6.0 +0.058
MMSZ5237BS F2 8.2 7.79 8.61 8.0 20 500 0.25 3.0 6.5 +0.062
MMSZ5239BS F4 9.1 8.65 9.56 10 20 600 0.25 3.0 7.0 +0.068
MMSZ5240BS F5 10 9.50 10.50 17 20 600 0.25 3.0 8.0 +0.075
MMSZ5241BS H1 11 10.45 11.55 22 20 600 0.25 2.0 8.4 +0.076
MMSZ5242BS H2 12 11.40 12.60 30 20 600 0.25 1.0 9.1 +0.077
MMSZ5243BS H3 13 12.35 13.65 13 9.5 600 0.25 0.5 9.9 +0.079
MMSZ5245BS H5 15 14.25 15.75 16 8.5 600 0.25 0.1 11 +0.082
MMSZ5246BS J1 16 15.20 16.80 17 7.8 600 0.25 0.1 12 +0.083
MMSZ5248BS J3 18 17.10 18.90 21 7.0 600 0.25 0.1 14 +0.085
MMSZ5250BS J5 20 19.00 21.00 25 6.0 600 0.25 0.1 15 +0.086
MMSZ5251BS K1 22 20.90 23.10 29 5.6 600 0.25 0.1 17 +0.087
MMSZ5252BS K2 24 22.80 25.20 33 5.2 600 0.25 0.1 18 +0.087
MMSZ5254BS K4 27 25.65 28.35 41 4.6 600 0.25 0.1 21 +0.090
MMSZ5255BS K5 28 26.60 29.40 44 4.5 600 0.25 0.1 21 +0.091
MMSZ5256BS M1 30 28.50 31.50 49 4.2 600 0.25 0.1 23 +0.091
MMSZ5257BS M2 33 31.35 34.65 58 3.8 700 0.25 0.1 25 +0.092
MMSZ5258BS M3 36 34.20 37.80 70 3.4 700 0.25 0.1 27 +0.093
MMSZ5259BS M4 39 37.05 40.95 80 3.2 800 0.25 0.1 30 +0.094
Notes: 1: Type numbers listed have standard tolerance on the nominal zener voltage of +/- 5%.
2. Tested with pulses, Tp≦ 1.0ms.
3. f=1KHz
Zener Voltage Range Maximum Zener
(Note 2) Impedance (Note 3) Maximum Reverse
V
z
@ I
zt Leakage Current
Z
ZT @
I
ZT
Z
ZK @
I
ZK
I
R @
V
R
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RECOMMENDED FOOTPRINT
0.062
(1.60)
0.055
(1.40)
0.047
(1.20)
inches(mm)
