Fairchild Semiconductor 1N973B, 1N972B, 1N971B, 1N970B, 1N969B Datasheet

...

Discrete POWER & Signal

Technologies

1N957B - 1N973B Series Half Watt Zeners

1N957B - 1N973B Series

Absolute Maximum Ratings* TA = 25°C unless otherwise noted

Tolerance: B = 5%

Parameter Value Units

Storage Temperature Range -65 to +200 Maximum Junction Operating Temperature + 175 Lead Tempera ture (1/16” from case for 10 seconds) + 230 Total Device Dissipation

Derate above 25°C

*These ratings are limiting values above which the serviceability of the diode may be impaired.

NOTES:

1) These ratings are based on a maximum junction temperature of 200 degrees C.

2) These are steady state limits. The factory should be consulted on applications involving pulsed

or low duty cycle operations.

500

3.33

mW/°C

DO-35

Electrical Characteristics TA = 25°C unless otherwise noted

Device

1N957B 1N958B 1N959B 1N960B 1N961B 1N962B 1N963B 1N964B 1N965B 1N966B 1N967B 1N968B 1N969B 1N970B 1N971B 1N972B 1N973B

(V)

6.8

7.5

8.2

9.1 10 11 12 13 15 16 18 20 22 24 27 30 33

*IZM (Maximum Zener Current Rating) Values shown are based on the JEDEC rating of 400 milliwatts. Where the actual zener voltage (VZ) is known

at the operating point, the maximum zener current may be increased and is limited by the derating curve.

(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

(mA)

18.5

16.5 15 14

12.5

11.5

10.5

9.5

8.5

7.8

7.0

6.2

5.6

5.2

4.6

4.2

3.8

(Ω)

700 700 700 700 700 700 700 700 700 700 750 750 750 750

750 1,000 1,000

(mA)

1.0

0.5

0.25

(µA)

150

75 50 25 10

5 5 5 5 5 5 5 5 5 5 5 5

(V)

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

(%/°C)

0.05

0.058

0.062

0.068

0.072

0.073

0.076

0.079

0.082

0.083

0.085

0.086

0.087

0.088

0.090

0.091

0.092

IZM*

(mA)

47 42 38 35 32 28 26 24 21 19 17 15 14 13 11 10

9.2

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Advance Information

Preliminary

No Identification Needed

Obsolete

Formative or In Design

First Production

Full Production

Not In Production

This datasheet contains the design specifications for product development. Specifications may change in any manner without notice.

This datasheet contains preliminary data, and supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design.

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This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor. The datasheet is printed for reference information only.