JIANGSU CHANGJING ELECTRONICS TECHNOLOGY CO., LTD
SOD-123 Plastic-Encapsulate Diodes
MMSZ5221B-MMSZ5259B ZENER DIODE
SOD-123
FEATURES
• Planar Die Construction
• Ultra-Small Surface Mount Package
• General purpose, Medium Current
• Ideally Suited for Automated Assembly Processes
Maximum Ratings(Ta=25℃ unless otherwise specified)
Characteristic
Forward Voltage (Note 2)
Symbol
@ IF = 10mA
Power Dissipation(Note 1)
Thermal Resistance, Junction to Ambient Air
Operation Junction and Storage Temperature Range
Value
Unit
VF
0.9
V
Pd
500
mW
RθJA
250
TJ,Tstg
-55~+150
℃/W
Я
Notes:1. Mounted on 1 in2 FR-4 board with 2oz. Copper, in a still air environment with Ta=25 ℃.
2. Tested with pulses, Tp≤1.0ms.
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1
Rev. - 2.2
ELECTRICAL CHARACTERISTICS
Ta=25℃ unless otherwise specified
Type
Number
Maximum Zener Impedance
Zener Voltage Range (Note 2)
(Note 4)
Code
VZ@IZT
IZT
Nom(V)
Min(V)
Max(V)
mA
ZZT@IZT
ZZK@IZK
Ω
Maximum
Reverse
Current
IZK
IR
VR
mA
uA
V
MMSZ5221B
C1
2.4
2.28
2.52
20
30
1200
0.25
100
1.0
MMSZ5223B
C3
2.7
2.57
2.84
20
30
1300
0.25
75
1.0
MMSZ5225B
C5
3.0
2.85
3.15
20
30
1600
0.25
50
1.0
MMSZ5226B
G1
3.3
3.14
3.47
20
28
1600
0.25
25
1.0
MMSZ5227B
G2
3.6
3.42
3.78
20
24
1700
0.25
15
1.0
MMSZ5228B
G3
3.9
3.71
4.10
20
23
1900
0.25
10
1.0
MMSZ5229B
G4
4.3
4.09
4.52
20
22
2000
0.25
5
1.0
MMSZ5230B
G5
4.7
4.47
4.94
20
19
1900
0.25
5
2.0
MMSZ5231B
E1
5.1
4.85
5.36
20
17
1600
0.25
5
2.0
MMSZ5232B
E2
5.6
5.32
5.88
20
11
1600
0.25
5
3.0
MMSZ5233B
E3
6.0
5.70
6.30
20
7
1600
0.25
5
3.5
MMSZ5234B
E4
6.2
5.89
6.51
20
7
1000
0.25
5
4.0
MMSZ5235B
E5
6.8
6.46
7.14
20
5
750
0.25
3
5.0
MMSZ5236B
F1
7.5
7.13
7.88
20
6
500
0.25
3
6.0
MMSZ5237B
F2
8.2
7.79
8.61
20
8
500
0.25
3
6.5
MMSZ5238B
F3
8.7
8.27
9.14
20
8
600
0.25
3
6.5
MMSZ5239B
F4
9.1
8.65
9.56
20
10
600
0.25
3
7.0
MMSZ5240B
F5
10
9.50
10.50
20
17
600
0.25
3
8.0
MMSZ5241B
H1
11
10.45
11.55
20
22
600
0.25
2.0
8.4
MMSZ5242B
H2
12
11.40
12.60
20
30
600
0.25
1.0
9.1
MMSZ5243B
H3
13
12.35
13.65
9.5
13
600
0.25
0.5
9.9
MMSZ5244B
H4
14
13.30
14.70
9.0
15
600
0.25
0.1
10
MMSZ5245B
H5
15
14.25
15.75
8.5
16
600
0.25
0.1
11
MMSZ5246B
J1
16
15.20
16.80
7.8
17
600
0.25
0.1
12
MMSZ5247B
J2
17
16.15
17.85
7.4
19
600
0.25
0.1
13
MMSZ5248B
J3
18
17.10
18.90
7.0
21
600
0.25
0.1
14
MMSZ5250B
J5
20
19.00
21.00
6.2
25
600
0.25
0.1
15
MMSZ5251B
K1
22
20.90
23.10
5.6
29
600
0.25
0.1
17
MMSZ5252B
K2
24
22.80
25.20
5.2
33
600
0.25
0.1
18
MMSZ5253B
K3
25
23.75
26.25
5.0
35
600
0.25
0.1
19
MMSZ5254B
K4
27
25.65
28.35
5.0
41
600
0.25
0.1
21
MMSZ5255B
K5
28
26.60
29.40
4.5
44
600
0.25
0.1
21
MMSZ5256B
M1
30
28.50
31.50
4.2
49
600
0.25
0.1
23
MMSZ5257B
M2
33
31.35
34.65
3.8
58
700
0.25
0.1
25
MMSZ5258B
M3
36
34.20
37.80
3.4
70
700
0.25
0.1
27
MMSZ5259B
M4
39
37.05
40.95
3.2
80
800
0.25
0.1
30
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2
Rev. - 2.2
Typical Characteristics
Zener Characteristics(VZ Up to 10 V)
Pulsed
10
1
0.5
PD =350mW
1
2
3
4
5
6
7
8
9
10
0.5
10
11
15
20
39
33
28
30
24
25
27
36
40
45
Typical Leakage Current
Pulsed
FOR MMSZ52XXB SERIES
10
30
IR, LEAKAGE CURRENT (uA)
θVZ, TEMPERATURE COEFFICIENT (mV/℃)
35
TYPICAL Ta VALUES
35
25
20
VZ @ IZT
15
10
5
1
0.1
0.01
Ta=100℃
1E-3
0
Ta=25℃
0
4
8
12
16
20
24
28
32
36
40
1E-4
44
0
5
10
25
30
35
45
40
Effect of Zener Voltage on Zener Impedance
Ta=25℃
f=1MHz
ZZT, DYNAMIC IMPEDANCE(Ω)
1000
0V BIAS
1V BIAS
10
BIAS AT
50% OF VZ NOM
1
20
3000
Ta=25℃
100
15
VZ, NOMINAL ZENER VOLTAGE (V)
Typical Capacitance
1000
C, CAPACITANCE (pF)
30
100
VZ, NOMINAL ZENER VOLTAGE (V)
10
IZ(AC)=0.1IZ(DC)
IZ=0.25mA
f=1kHz
100
IZT
10
1
100
1
10
100
VZ, NOMINAL ZENER VOLTAGE (V)
VZ, NOMINAL ZENER VOLTAGE (V)
Power Derating Curve
800
700
600
POWER DISSIPATION
PD
(mW)
25
VZ, ZENER VOLTAGE (V)
Temperature Coefficients
40
1
22
1
VZ, ZENER VOLTAGE (V)
-5
20
10
11
12
13
14
15
16
9.1
8.7
8.2
7.5
6.2
6.8
5.1
5.6
6.0
4.3
4.7
10
3.0
IZ, ZENER CURRENT (mA)
Ta =25℃
PD =350mW
Pulsed
18
Ta =25℃
Zener Characteristics(11 V to 39 V)
100
IZ, ZENER CURRENT (mA)
100
500
400
300
200
100
0
0
25
50
75
AMBIENT TEMPERATURE
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100
Ta
125
150
(℃ )
3
Rev. - 2.2
SOD-123 Package Outline Dimensions
Dimensions In Millimeters
Min
Max
1.050
1.250
0.000
0.100
1.050
1.150
0.450
0.650
0.080
0.150
1.500
1.700
2.600
2.800
3.550
3.850
0.500 REF
0.250
0.450
0°
8°
Symbol
A
A1
A2
b
c
D
E
E1
L
L1
θ
Dimensions In Inches
Min
Max
0.041
0.049
0.000
0.004
0.041
0.045
0.018
0.026
0.003
0.006
0.059
0.067
0.102
0.110
0.140
0.152
0.020 REF
0.010
0.018
0°
8°
SOD-123 Suggested Pad Layout
NOTICE
JSCJ reserves the right to make modifications,enhancements,improvements,corrections or other
changes without further notice to any product herein. JSCJ does not assume any liability arising
out of the application or use of any product described herein.
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4
Rev. - 2.2
SOD-123 Tape and Reel
www.jscj-elec.com
5
Rev. - 2.2
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