1N957B THRU 1N992B

SILICON ZENER DIODE

6.8 VOLTS THRU 200 VOLTS

500mW, 5% TOLERANCE

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.

MAXIMUM RATINGS: (TL=75°C)

SYMBOL

UNITS

Power Dissipation

PD

500

mW

Operating and Storage Junction Temperature

TJ, Tstg

-65 to +200

°C

VZ Tolerance: Part number with “B” suffix

±5

%

VZ Tolerance: Part number with “C” suffix

±2

%

VZ Tolerance: Part number with “D” suffix

±1

%

ELECTRICAL CHARACTERISTICS: (TA=25°C) VF=1.5V MAX @ IF=200mA (for all types)

TYPE

ZENER

VOLTAGE

VZ @ IZT

TEST

CURRENT

MAXIMUM ZENER

IMPEDANCE

MAXIMUM

REVERSE

CURRENT

MAXIMUM

ZENER

CURRENT

MIN

NOM

MAX

IZT

ZZT @ IZT

ZZK @ IZK

IR @ VR

IZM

V

V

V

mA

Ω

Ω

mA

μA

V

mA

1N957B

6.460

6.8

7.140

18.5

4.5

700

1.00

150

5.2

47

1N958B

7.125

7.5

7.875

16.5

5.5

700

0.50

75

5.7

42

1N959B

7.790

8.2

8.610

15.0

6.5

700

0.50

50

6.2

38

1N960B

8.645

9.1

9.555

14.0

7.5

700

0.50

25

6.9

35

1N961B

9.500

10

10.50

12.5

8.5

700

0.25

10

7.6

32

1N962B

10.45

11

11.55

11.5

9.5

700

0.25

5.0

8.4

28

1N963B

11.40

12

12.60

10.5

11.5

700

0.25

5.0

9.1

26

1N964B

12.35

13

13.65

9.5

13.0

700

0.25

5.0

9.9

24

1N965B

14.25

15

15.75

8.5

16.0

700

0.25

5.0

11.4

21

1N966B

15.20

16

16.80

7.8

17.0

700

0.25

5.0

12.2

19

1N967B

17.10

18

18.90

7.0

21.0

750

0.25

5.0

13.7

17

1N968B

19.00

20

21.00

6.2

25.0

750

0.25

5.0

15.2

15

1N969B

20.90

22

23.10

5.6

29.0

750

0.25

5.0

16.7

14

1N970B

22.80

24

25.20

5.2

33.0

750

0.25

5.0

18.2

13

1N971B

25.65

27

28.35

4.6

41.0

750

0.25

5.0

20.6

11

1N972B

28.50

30

31.50

4.2

49.0

1000

0.25

5.0

22.8

10

1N973B

31.35

33

34.65

3.8

58.0

1000

0.25

5.0

25.1

9.2

1N974B

34.20

36

37.80

3.4

70.0

1000

0.25

5.0

27.4

8.5

1N975B

37.05

39

40.95

3.2

80.0

1000

0.25

5.0

29.7

7.8

1N976B

40.85

43

45.15

3.0

93.0

1500

0.25

5.0

32.7

7.0

1N977B

44.65

47

49.35

2.7

105

1500

0.25

5.0

35.8

6.4

1N978B

48.45

51

53.55

2.5

125

2000

0.25

5.0

38.8

5.9

1N979B

53.20

56

58.80

2.2

150

2000

0.25

5.0

42.6

5.4

1N980B

58.90

62

65.10

2.0

185

2000

0.25

5.0

47.1

4.9

1N981B

64.60

68

71.40

1.8

230

2000

0.25

5.0

51.7

4.5

1N982B

71.25

75

78.75

1.7

270

2000

0.25

5.0

56.0

4.0

DO-35 CASE

R1 (27-October 2011)

www.centr a lsemi.com