1N957B~1N992B
ELECTRICAL CHARACTERISTICS
(T
A
= 25ºC unless
otherwise noted, V
F
= 1.5 V Max @ I
F
= 200mA for all types)
Symbol
V
Z
I
ZT
Z
ZT
I
ZM
I
R
V
R
I
F
V
F
I
ZM
Parameter
Reverse Zener Voltage @ I
ZT
Reverse Zener Current
Maximum Zener Impedance @ I
ZT
Maximum DC Zener Current
Reverse Leakage Current @ V
R
Reverse Voltage
Forward Current
Forward Voltage @ I
F
Maximum DC Zener Current
ELECTRICAL CHARACTERISTICS
(T
A
= 25ºC unless otherwise noted, V
F
= 1.5 V Max @ I
F
= 200mA for all types)
Zener Voltage
(Note 3.)
Device
(Note 2.)
Zener Impedance
(Note 4.)
@ I
ZT
Z
ZT
@ I
ZT
Ω
(Ω)
4.5
5.5
6.5
7.5
8.5
9.5
11.5
13
16
17
21
25
29
33
41
49
58
70
80
93
Z
ZK
@ I
ZK
Ω
(Ω)
700
700
700
700
700
700
700
700
700
700
750
750
750
750
750
1000
1000
1000
1000
1500
(mA)
1
0.5
0.5
0.5
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
Leakage Current
I
R
@ V
R
µ
(µA)
150
75
50
25
10
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
(Volts)
5.2
5.7
6.2
6.9
7.6
8.4
9.1
9.9
11.4
12.2
13.7
15.2
16.7
18.2
20.6
22.8
25.1
27.4
29.7
32.7
I
ZM
(Note 5.)
Device
Marking
1N957B
1N958B
1N959B
1N960B
1N961B
1N962B
1N963B
1N964B
1N965B
1N966B
1N967B
1N968B
1N969B
1N970B
1N971B
1N972B
1N973B
1N974B
1N975B
1N976B
V
Z
(Volts)
Min
6.46
7.125
7.79
8.645
9.5
10.45
11.4
12.35
14.25
15.2
17.1
19
20.9
22.8
25.65
28.5
31.35
34.2
37.05
40.85
Nom
6.8
7.5
8.2
9.1
10
11
12
13
15
16
18
20
22
24
27
30
33
36
39
43
Max
7.14
7.875
8.61
9.555
10.5
11.55
12.6
13.65
15.75
16.8
18.9
21
23.1
25.2
28.35
31.5
34.65
37.8
40.95
45.15
(mA)
18.5
16.5
15
14
12.5
11.5
10.5
9.5
8.5
7.8
7
6.2
5.6
5.2
4.6
4.2
3.8
3.4
3.2
3
(mA)
47
42
38
35
32
28
26
24
21
19
17
15
14
13
11
10
9.2
8.5
7.8
7
1N957B
1N958B
1N959B
1N960B
1N961B
1N962B
1N963B
1N964B
1N965B
1N966B
1N967B
1N968B
1N969B
1N970B
1N971B
1N972B
1N973B
1N974B
1N975B
1N976B
2. TOLERANCE AND TYPE NUMBER DESIGNATION (V
Z
)
The type numbers listed have a standard tolerance on the nominal zener voltage of
±5%.
3. ZENER VOLTAGE (V
Z
) MEASUREMENT
Nominal zener voltage is measured with the device junction in the thermal equilibrium at the lead temperature (T
L
) at 30°C
±1°C
and 3/8” lead length.
4. ZENER IMPEDANCE (Z
Z
) DERIVATION
Z
ZT
and Z
ZK
are measured by dividing the AC voltage drop across the device by the AC current applied. The specified limits
are for I
Z(AC)
= 0.1 I
Z(DC)
with AC frequency = 60Hz.
5. MAXIMUM ZENER CURRENT RATINGS (I
ZM
)
Values shown are based on the JEDEC rating of 400mW where the actual zener voltage (V
Z
) is known at the operating
point, the zener current may be increased and is limited by the derating curve.
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2
REV.02 20120403
YEASHIN [ Yea Shin Technology Co., Ltd ]
