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