SMSZ4xxx Series
Surface Mount Zener Diodes
Vz Range: 1.8V to 43V Power Dissipation: 500mW
Features
Low zener impedance
Power dissipation of 500mW
High stability and reliability
ESD capability according to AEC-Q101:
Human body mode > 8kV,Machine mode > 800V
SOD-123
Absolute Maximum Ratings (TA=25°C unless otherwise specified)
Symbol
Value
Unit
Forward Voltage1 @ IF=10mA
VF
0.9
V
Power Dissipation2
PD
500
mW
RθJA
340
°C/W
TJ
-55 to +150
°C
TSTG
-55 to +150
°C
Parameter
Thermal Resistance, Junction to Ambient Air
Operating Temperature Range
Storage Temperature Range
Notes:
1. Short duration test pulse used to minimize self-heating effect.
2. Device mounted on ceramic PCB: 7.6mmx9.4mmx0.87 with pad areas of 25mm2
Symbol
I
Parameter
VZ
Reverse Zener Voltage @ IZT
IZT
Reverse Current
IR
Reverse Leakage Current @ VR
VR
Reverse Voltage
IF
Forward Current
VF
Forward Voltage @ IF
IF
VZ VR
V
VF
IR
IZT
I-V Curve of Zener Voltage Regulator
1/5
SMSZ4xxx Series
Surface Mount Zener Diodes
Vz Range: 1.8V to 43V Power Dissipation: 500mW
Electrical Characteristics (TA=25°C unless otherwise specified)
MPN
Marking
Code
Zener Voltage
Leakage Current
VZ (V)
Min
@ IZT
IR @ VR
Nom
Max
µA
µA
V
SMSZ4678
CC
1.71
1.8
1.89
50
7.5
1
SMSZ4679
CD
1.90
2.0
2.10
50
5
1
SMSZ4680
CE
2.09
2.2
2.31
50
4
1
SMSZ4681
CF
2.28
2.4
2
1
CH
2.7
2.52
2.84
50
SMSZ4682
50
1
1
SMSZ4683
CJ
2.57
2.85
3.0
3.15
50
0.8
1
SMSZ4684
CK
3.13
3.3
3.47
50
7.5
1.5
SMSZ4685
CM
3.42
3.6
3.78
50
7.5
2
SMSZ4686
CN
3.9
4.10
50
5
2
SMSZ4687
CP
3.70
4.09
4.3
4.52
50
4
2
SMSZ4688
CT
4.47
4.7
4.94
50
10
3
SMSZ4689
CU
4.85
5.1
5.36
50
10
3
SMSZ4690
CV
5.32
5.6
5.88
50
10
4
SMSZ4691
CA
5.89
6.2
6.51
50
10
5
SMSZ4692
CX
6.46
6.8
7.14
50
10
5.1
SMSZ4693
CY
7.13
7.5
7.88
50
10
5.7
SMSZ4694
CZ
7.79
8.2
8.61
50
1
6.2
SMSZ4695
DC
8.27
8.7
9.14
50
1
6.6
SMSZ4696
DD
8.65
9.1
9.56
50
1
6.9
SMSZ4697
DE
9.50
10
10.50
50
1
7.6
SMSZ4698
DF
10.45
11
11.55
50
0.05
8.4
SMSZ4699
DH
11.40
12
12.60
50
0.05
9.1
SMSZ4700
DJ
12.35
13
13.65
50
0.05
9.8
SMSZ4701
DK
13.30
14
14.70
50
0.05
10.6
SMSZ4702
DM
14.25
15
15.75
50
0.05
11.4
SMSZ4703
DN
15.20
16
16.80
50
0.05
12.1
SMSZ4704
DP
16.15
17
17.85
50
0.05
12.9
SMSZ4705
DT
17.10
18
18.90
50
0.05
13.6
SMSZ4706
DU
18.05
19
19.95
50
0.05
14.4
SMSZ4707
DV
19.00
20
21.00
50
0.01
15.2
SMSZ4708
DA
20.90
22
23.10
50
0.01
16.7
SMSZ4709
DX
22.80
24
25.20
50
0.01
18.2
SMSZ4710
DY
23.75
25
26.25
50
0.01
19.0
SMSZ4711
EA
25.65
27
28.35
50
0.01
20.4
SMSZ4712
EC
26.60
28
29.40
50
0.01
21.2
SMSZ4713
ED
28.50
30
31.50
50
0.01
22.8
SMSZ4714
EE
31.35
33
34.65
50
0.01
25.0
SMSZ4715
EF
34.20
36
37.80
50
0.01
27.3
SMSZ4716
EH
37.05
39
40.95
50
0.01
29.6
SMSZ4717
EJ
40.85
43
45.15
50
0.01
32.6
2/5
SMSZ4xxx Series
Surface Mount Zener Diodes
Vz Range: 1.8V to 43V Power Dissipation: 500mW
θVZ, Temperature
Coefficient (mV/°C)
θVZ, Temperature
Coefficient (mV/°C)
Ratings and Characteristic Curves
VZ, Nominal Zener Voltage (V)
VZ, Nominal Zener Voltage (V)
Figure 1. Temperature Coefficients
Figure 2. Temperature Coefficients
(Temperature Range -55°C to +150°C)
PD, Power Dissipation (W)
PPK, Peak Surge Power (W)
(Temperature Range -55°C to +150°C)
Temperature (°C)
PW, Pulse Width (ms)
Figure 4. Maximum Nonrepetitive Surge Power
Capacitance (pF)
ZZT, Dynamic Impedance (Ω)
Figure 3. Steady State Power Derating
VZ, Nominal Zener Voltage (V)
VZ, Nominal Zener Voltage (V)
Figure 5. Effect of Zener Voltage on Zener Impedance
3/5
Figure 6. Typical Capacitance
SMSZ4xxx Series
Surface Mount Zener Diodes
Vz Range: 1.8V to 43V Power Dissipation: 500mW
IZ, Zener Current (mA)
IR, Leakage Current (uA)
Ratings and Characteristic Curves
VZ, Zener Voltage (V)
VZ, Nominal Zener Voltage (V)
Figure 8. Zener Voltage vs. Zener Current
(VZ up to 12V)
IZ, Zener Current (mA)
Figure 7. Typical Leakage Current
VZ, Zener Voltage (V)
Figure 9. Zener Voltage vs. Zener Current
(12V to 43V)
4/5
SMSZ4xxx Series
Surface Mount Zener Diodes
Vz Range: 1.8V to 43V Power Dissipation: 500mW
Package Outline Dimensions (SOD-123)
K
C
B
E
J
A
D
H
Dimensions In Millimeters
Symbol
Dimensions In Inches
Min
Max
Min
Max
A
1.400
1.750
0.055
0.069
B
2.500
2.850
0.098
0.112
C
1.150 TYP
0.045 TYP
D
0.550 TYP
0.022 TYP
E
0.200
0.450
0.008
0.018
H
0.000
0.100
0.000
0.004
J
0.100 TYP
K
0.004 TYP
3.500
3.850
0.138
0.152
Recommended Pad Layout
0.91
1.22
2.36
4.19
www.goodarksemi.com
Unit: mm
5/5
Doc.USSMSZ4xxxxSX3.3
Oct. 2022
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