1N957B THRU 1N992B
SILICON ZENER DIODE
6.8 VOLTS THRU 200 VOLTS
500mW, 5% TOLERANCE
w w w. c e n t r a l s e m i . c o m
DESCRIPTION:
The CENTRAL SEMICONDUCTOR 1N957B Series
Silicon Zener Diode is a high quality voltage regulator
designed for use in industrial, commercial, entertainment
and computer applications.
DO-35 CASE
MAXIMUM RATINGS: (TL=75°C)
Power Dissipation
Operating and Storage Junction Temperature
VZ Tolerance: Part number with “B” suffix
VZ Tolerance: Part number with “C” suffix
VZ Tolerance: Part number with “D” suffix
SYMBOL
PD
TJ, Tstg
500
-65 to +200
±5
±2
±1
UNITS
mW
°C
%
%
%
ELECTRICAL CHARACTERISTICS: (TA=25°C) VF=1.5V MAX @ IF=200mA (for all types)
TYPE
1N957B
1N958B
1N959B
1N960B
1N961B
1N962B
1N963B
1N964B
1N965B
1N966B
1N967B
1N968B
1N969B
1N970B
1N971B
1N972B
1N973B
1N974B
1N975B
1N976B
1N977B
1N978B
1N979B
1N980B
1N981B
1N982B
ZENER
VOLTAGE
VZ @ IZT
MIN NOM MAX
VVV
6.460 6.8 7.140
7.125 7.5 7.875
7.790 8.2 8.610
8.645 9.1 9.555
9.500 10 10.50
10.45 11 11.55
11.40 12 12.60
12.35 13 13.65
14.25 15 15.75
15.20 16 16.80
17.10 18 18.90
19.00 20 21.00
20.90 22 23.10
22.80 24 25.20
25.65 27 28.35
28.50 30 31.50
31.35 33 34.65
34.20 36 37.80
37.05 39 40.95
40.85 43 45.15
44.65 47 49.35
48.45 51 53.55
53.20 56 58.80
58.90 62 65.10
64.60 68 71.40
71.25 75 78.75
TEST
CURRENT
MAXIMUM ZENER
IMPEDANCE
IZT
ZZT @ IZT
ZZK @ IZK
mA Ω Ω mA
18.5 4.5 700 1.00
16.5 5.5 700 0.50
15.0 6.5 700 0.50
14.0 7.5 700 0.50
12.5 8.5 700 0.25
11.5 9.5 700 0.25
10.5 11.5 700 0.25
9.5 13.0 700 0.25
8.5 16.0 700 0.25
7.8 17.0 700 0.25
7.0 21.0 750 0.25
6.2 25.0 750 0.25
5.6 29.0 750 0.25
5.2 33.0 750 0.25
4.6 41.0 750 0.25
4.2
49.0
1000
0.25
3.8
58.0
1000
0.25
3.4
70.0
1000
0.25
3.2
80.0
1000
0.25
3.0
93.0
1500
0.25
2.7
105
1500
0.25
2.5
125
2000
0.25
2.2
150
2000
0.25
2.0
185
2000
0.25
1.8
230
2000
0.25
1.7
270
2000
0.25
MAXIMUM
REVERSE
CURRENT
IR @ VR
μA V
150 5.2
75 5.7
50 6.2
25 6.9
10 7.6
5.0 8.4
5.0 9.1
5.0 9.9
5.0 11.4
5.0 12.2
5.0 13.7
5.0 15.2
5.0 16.7
5.0 18.2
5.0 20.6
5.0 22.8
5.0 25.1
5.0 27.4
5.0 29.7
5.0 32.7
5.0 35.8
5.0 38.8
5.0 42.6
5.0 47.1
5.0 51.7
5.0 56.0
MAXIMUM
ZENER
CURRENT
IZM
mA
47
42
38
35
32
28
26
24
21
19
17
15
14
13
11
10
9.2
8.5
7.8
7.0
6.4
5.9
5.4
4.9
4.5
4.0
R1 (27-October 2011)
