Is Now Part of
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Please note: As part of the Fairchild Semiconductor integration, some of the Fairchild orderable part numbers
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MMSZ5226B - MMSZ5257B — Zeners
October 2015
MMSZ5226B - MMSZ5257B
Zeners
Tolerance = 5%
SOD-123
* Band marking denotes cathode.
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be opera-
ble above the recommended operating conditions and stressing the parts to these levels is not recommended. In addi-
tion, extended exposure to stresses above the recommended operating conditions may affect device reliability. The
absolute maximum ratings are stress ratings only. Values are at T
A
= 25°C unless otherwise noted.
Symbol
P
D
R
θJA
T
STG
T
J
Parameter
Power Dissipation at T
A
= 25°C
Thermal Resistance, Junction to Ambient
(1)
Storage Temperature Range
Operating Junction Temperature
Value
500
340
-55 to +150
+150
Units
mW
°C/W
°C
°C
Note:
1. FR-4 or FR-5 = 3.5 inch
×
1.5 inch using minimum recommended land pads.
© 1997 Fairchild Semiconductor Corporation
MMSZ5226B - MMSZ5257B Rev. 1.6
www.fairchildsemi.com
MMSZ5226B - MMSZ5257B — Zeners
Typical Performance Characteristics
35
V
Z
- ZENER VOLTAGE (V)
5000
V
Z
= 33.0V
25
20
15
10
5
1
V
Z
= 5.1V
V
Z
= 3.3V
T
A
= 25
º
C
Z
Z
- IMPEDANCE (ohms)
30
2000
1000
500
V
Z
= 3.3V
200
100
50
V
Z
= 5.1V
T
A
= 25
º
C
V
Z
= 33.0V
V
Z
= 12.0V
20
10
V
Z
= 12.0V
5
2
1
0.1
2
5
10
I
Z
- ZENER CURRENT (mA)
20
30
0.2
0.5
1
2
5
I
Z
- ZENER CURRENT (mA)
10
20
Figure 1. Zener Current vs. Zener Voltage
Figure 2. Zener Current vs. Zener Impedence
5
V
Z
- ZENER VOLTAGE (V)
6
V
Z
= 3.3V
V
Z
= 5.1V
4
T
A
= -25
º
C
T
A
= 25
º
C
V
Z
- ZENER VOLTAGE (V)
5.5
T
A
= 125
º
C
3
T
A
= 85
º
C
5
T
A
= 100
º
C
T
A
= 25
º
C
T
A
= -25
º
C
T
A
= 85
º
C
2
T
A
= 100
º
C
T
A
= 125
º
C
4.5
1
1
2
5
10
I
Z
- ZENER CURRENT (mA)
20
30
4
1
2
5
10
I
Z
- ZENER CURRENT (mA)
20
30
Figure 3. 3.3 Zener Voltage vs. Temperature
Figure 4. 5.1 Zener Voltage vs. Temperature
15
V
Z
- ZENER VOLTAGE (V)
V
Z
= 12.0V
40
T
A
= 125
º
C
V
Z
= 33.0V
T
A
= 100
º
C
T
A
= 125
º
C
10
T = -25
º
C
A
T
A
= 25
º
C
T
A
= 85
º
C
T
A
= 100
º
C
V
Z
- ZENER VOLTAGE (V)
35
30
T
A
= -25
º
C
T
A
= 25
º
C
T
A
= 85
º
C
5
25
0
1
2
5
10
I
Z
- ZENER CURRENT (mA)
20
30
20
1
2
5
10
I
Z
- ZENER CURRENT (mA)
20
30
Figure 5. 12 Zener Voltage vs. Zener Temperature
Figure 6. 33 Zener Voltage vs. Zener Temperature
© 1997 Fairchild Semiconductor Corporation
MMSZ5226B - MMSZ5257B Rev. 1.6
www.fairchildsemi.com
3
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