1N966B datasheet(2/9 Pages) YEASHIN

Part #	1N966B

Description	500 mW DO-35 Hermetically Sealed Glass Zener Voltage Regulators

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Manufacturer	YEASHIN [Yea Shin Technology Co., Ltd]

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REV.02 20120403

1N957B~1N992B

ELECTRICAL CHARACTERISTICS (TA = 25ºC unless

otherwise noted, VF = 1.5 V Max @ IF = 200mA for all types)

Symbol

Parameter

VZ

Reverse Zener Voltage @ IZT

IZT

Reverse Zener Current

ZZT

Maximum Zener Impedance @ IZT

IZM

Maximum DC Zener Current

IR

Reverse Leakage Current @ VR

VR

Reverse Voltage

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)

Zener Voltage (Note 3.)

Zener Impedance (Note 4.)

Leakage Current

VZ (Volts)

@ IZT

ZZT @ IZT

ZZK @ IZK

IR @ VR

IZM

(Note 5.)

Device

(Note 2.)

Device

Marking

Min

Nom

Max

(mA)

(

Ω

Ω)(Ω

Ω

Ω)

(mA)

(

µµµµA)

(Volts)

(mA)

1N957B

6.46

6.8

7.14

18.5

4.5

700

1

150

5.2

47

1N958B

7.125

7.5

7.875

16.5

5.5

700

0.5

75

5.7

42

1N959B

7.79

8.2

8.61

15

6.5

700

0.5

50

6.2

38

1N960B

8.645

9.1

9.555

14

7.5

700

0.5

25

6.9

35

1N961B

9.5

10

10.5

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

8.4

28

1N963B

11.4

12

12.6

10.5

11.5

700

0.25

5

9.1

26

1N964B

12.35

13

13.65

9.5

13

700

0.25

5

9.9

24

1N965B

14.25

15

15.75

8.5

16

700

0.25

5

11.4

21

1N966B

15.2

16

16.8

7.8

17

700

0.25

5

12.2

19

1N967B

17.1

18

18.9

7

21

750

0.25

5

13.7

17

1N968B

19

20

21

6.2

25

750

0.25

5

15.2

15

1N969B

20.9

22

23.1

5.6

29

750

0.25

5

16.7

14

1N970B

22.8

24

25.2

5.2

33

750

0.25

5

18.2

13

1N971B

25.65

27

28.35

4.6

41

750

0.25

5

20.6

11

1N972B

28.5

30

31.5

4.2

49

1000

0.25

5

22.8

10

1N973B

31.35

33

34.65

3.8

58

1000

0.25

5

25.1

9.2

1N974B

34.2

36

37.8

3.4

70

1000

0.25

5

27.4

8.5

1N975B

37.05

39

40.95

3.2

80

1000

0.25

5

29.7

7.8

1N976B

40.85

43

45.15

3

93

1500

0.25

5

32.7

7

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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