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JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD
SOD-123 Plastic-Encapsulate Diodes
MMSZ5221B-MMSZ5259B ZENER DIODE
FEATURES
• Planar Die Construction
• Ultra-Small Surface Mount Package
• General purpose, Medium Current
• Ideally Suited for Automated Assembly Processes
SOD-123
Maximum Ratings(Ta=25unless otherwise specified)
Characteristic
Symbol
Forward Voltage (Note 2)
@ IF = 10mA
VF
Power Dissipation(Note 1)
Pd
Thermal Resistance, Junction to Ambient Air
RθJA
Junction Temperature
Tj
Storage Temperature Range
Tstg
Value
0.9
350
357
150
-55~+150
Unit
V
mW
/W
Я
Я
Notes:1. Device mounted on ceramic PCB; 7.6 mm x 9.4 mm x 0.87 mm with pad areas 25 mm2.
2. Tested with pulses, Tp1.0ms.
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C,Mar,2015

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ELECTRICAL CHARACTERISTICS
Ta=25unless otherwise specified
Type
Number
MMSZ5221B
MMSZ5223B
MMSZ5225B
MMSZ5226B
MMSZ5227B
MMSZ5228B
MMSZ5229B
MMSZ5230B
MMSZ5231B
MMSZ5232B
MMSZ5233B
MMSZ5234B
MMSZ5235B
MMSZ5236B
MMSZ5237B
MMSZ5238B
MMSZ5239B
MMSZ5240B
MMSZ5241B
MMSZ5242B
MMSZ5243B
MMSZ5244B
MMSZ5245B
MMSZ5246B
MMSZ5248B
MMSZ5250B
MMSZ5251B
MMSZ5252B
MMSZ5253B
MMSZ5254B
MMSZ5255B
MMSZ5256B
MMSZ5257B
MMSZ5258B
MMSZ5259B
Code
C1
C3
C5
G1
G2
G3
G4
G5
E1
E2
E3
E4
E5
F1
F2
F3
F4
F5
H1
H2
H3
H4
H5
J1
J3
J5
K1
K2
K3
K4
K5
M1
M2
M3
M4
Zener Voltage Range (Note 2)
Nom(V)
2.4
2.7
3.0
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.0
6.2
6.8
7.5
8.2
8.7
9.1
10
11
12
13
14
15
16
18
20
22
24
25
27
28
30
33
36
39
VZ@IZT
Min(V)
2.28
2.57
2.85
3.14
3.42
3.71
4.09
4.47
4.85
5.32
5.70
5.89
6.46
7.13
7.79
8.27
8.65
9.50
10.45
11.40
12.35
13.30
14.25
15.20
17.10
19.00
20.90
22.80
23.75
25.65
26.60
28.50
31.35
34.20
37.05
Max(V)
2.52
2.84
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
18.90
21.00
23.10
25.20
26.25
28.35
29.40
31.50
34.65
37.80
40.95
IZT
mA
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
9.5
9.0
8.5
7.8
7.0
6.2
5.6
5.2
5.0
5.0
4.5
4.2
3.8
3.4
3.2
Maximum Zener Impedance
(Note 4)
ZZT@IZT
ZZK@IZK
30 1200
30 1300
30 1600
28 1600
24 1700
23 1900
22 2000
19 1900
17 1600
11 1600
7 1600
7 1000
5 750
6 500
8 500
8 600
10 600
17 600
22 600
30 600
13 600
15 600
16 600
17 600
21 600
25 600
29 600
33 600
35 600
41 600
44 600
49 600
58 700
70 700
80 800
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
Maximum
Reverse
Current
IR VR
uA V
100 1.0
75 1.0
50 1.0
25 1.0
15 1.0
10 1.0
5 1.0
5 2.0
5 2.0
5 3.0
5 3.5
5 4.0
3 5.0
3 6.0
3 6.5
3 6.5
3 7.0
3 8.0
2.0 8.4
1.0 9.1
0.5 9.9
0.1 10
0.1 11
0.1 12
0.1 14
0.1 15
0.1 17
0.1 18
0.1 19
0.1 21
0.1 21
0.1 23
0.1 25
0.1 27
0.1 30
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C,Mar,2015

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Typical Characteristics
Zener Characteristics(V Up to 10 V)
Z
100
Ta =25
Pulsed
PD =350mW
10
Zener Characteristics(11 V to 39 V)
100
Ta =25
Pulsed
PD =350mW
10
1
0.5
12345678
VZ, ZENER VOLTAGE (V)
Temperature Coefficients
40
35
TYPICAL Ta VALUES
FOR MMSZ52XXB SERIES
30
9
10 11
25
20 VZ @ IZT
15
10
5
0
-5
0 4 8 12 16 20 24 28 32 36 40 44
VZ, NOMINAL ZENER VOLTAGE (V)
1000 Typical Capacitance
Ta=25
f=1MHz
100
0V BIAS
1V BIAS
10
BIAS AT
50% OF VZ NOM
1
1 10
VZ, NOMINAL ZENER VOLTAGE (V)
Power Derating Curve
400
350
300
250
200
150
100
50
0
0
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25 50 75 100 125
AMBIENT TEMPERATURE Ta ()
100
150
3
1
0.5
10 15 20 25 30 35 40 45
VZ, ZENER VOLTAGE (V)
Typical Leakage Current
100
Pulsed
10
1
0.1
0.01
1E-3
1E-4
0
3000
1000
Ta=100
Ta=25
5 10 15 20 25 30 35 40 45
VZ, NOMINAL ZENER VOLTAGE (V)
Effect of Zener Voltage on Zener Impedance
IZ=0.25mA
Ta=25
IZ(AC)=0.1IZ(DC)
f=1kHz
100
IZT
10
1
1 10 100
VZ, NOMINAL ZENER VOLTAGE (V)
C,Mar,2015

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SOD-123 Package Outline Dimensions
Symbol
A
A1
A2
b
c
D
E
E1
L
L1
θ
Dimensions In Millimeters
Min
1.050
0.000
Max
1.250
0.100
1.050
0.450
0.080
1.500
2.600
3.550
1.150
0.650
0.150
1.700
2.800
3.850
0.500 REF
0.250
0.450
0° 8°
Dimensions In Inches
Min
0.041
0.000
Max
0.049
0.004
0.041
0.018
0.003
0.059
0.102
0.140
0.045
0.026
0.006
0.067
0.110
0.152
0.020 REF
0.010
0.018
0° 8°
SOD-123 Suggested Pad Layout
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C,Mar,2015

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SOD-123 Tape and Reel
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5
C,Mar,2015