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1N957B Dataheets PDF



Part Number 1N957B
Manufacturers NTE
Logo NTE
Description Zener Diode
Datasheet 1N957B Datasheet1N957B Datasheet (PDF)

1N957B thru 1N973B Zener Diode, 1/2 Watt 5% Tolerance Features: D Zener Voltage 6.8 to 33V D DO35 Package Absolute Maximum Ratings: (TA = +25C unless otherwise specified) Operating Junction Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65 to +200C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65 to +200C DC PowDeerraDteisAsibpoavtieon50(TCL  . +50C), .. .P.D. .

  1N957B   1N957B



Document
1N957B thru 1N973B Zener Diode, 1/2 Watt 5% Tolerance Features: D Zener Voltage 6.8 to 33V D DO35 Package Absolute Maximum Ratings: (TA = +25C unless otherwise specified) Operating Junction Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65 to +200C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65 to +200C DC PowDeerraDteisAsibpoavtieon50(TCL  . +50C), ....... .P.D. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW 3.33mW/C Forward Voltage (IF = 200mA), VF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5V Electrical Characteristics: (TC = +25C, unless otherwise specified) Device Number 1N957B Nominal Zener Voltage VZ (Note 1) Volts 6.8 Test Current IZT mA Maximum Zene Impedance (Note 2) ZZT @ IZT ZZK @ IZK IZK Ohms Ohms mA 18.5 4.5 700 1.0 Maximum DC Zener Current IZM mA 47 61 Maximum Reverse Current IR Max A 150 Test Voltage Vdc 5% VR 10% 5.2 4.9 1N958B 7.5 16.5 5.5 700 0.5 42 55 75 5.7 5.4 1N959B 8.2 15.0 6.5 700 0.5 38 50 50 6.2 5.9 1N960B 9.1 14.0 7.5 700 0.5 35 45 25 6.9 6.6 1N961B 10 12.5 8.5 700 0.25 32 41 10 7.6 7.2 1N962B 11 11.5 9.5 700 0.25 28 37 5 8.4 8.0 1N963B 12 10.5 11.5 700 0.25 26 34 5 9.1 8.6 Note 1. Nominal zener voltage is measured with the device junction in thermal equilibrium at the lead temperature of +30C 1C and 3/8” lead length. Note 2. 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 the AC frequency = 60Hz. Electrical Characteristics (Cont’d): (TC = +25C, unless otherwise specified) Device Number 1N964B Nominal Zener Voltage VZ (Note 1) Volts 13 Test Current IZT mA Maximum Zene Impedance (Note 2) ZZT @ IZT ZZK @ IZK IZK Ohms Ohms mA 9.5 13.0 700 0.25 Maximum DC Zener Current IZM mA 24 32 Maximum Reverse Current IR Max A 5 Test Voltage Vdc 5% VR 10% 9.9 9.4 1N965B 15 8.5 16.0 700 0.25 21 27 5 11.4 10.8 1N966B 16 7.8 17.0 700 0.25 19 37 5 12.2 11.5 1N967B 18 7.0 21.0 750 0.25 17 23 5 13.7 13.0 1N968B 20 6.2 25.0 750 0.25 15 20 5 15.2 14.4 1N969B 22 5.6 29.0 750 0.25 14 18 5 16.7 15.8 1N970B 24 5.2 33.0 750 0.25 13 17 5 18.2 17.3 1N971B 27 4.6 41.0 750 0.25 11 15 5 20.6 19.4 1N972B 30 4.2 49.0 1000 0.25 10 13 5 22.8 21.6 1N973B 33 3.8 58.0 1000 0.25 9.2 12.5 5 25.1 23.8 Note 1. Nominal zener voltage is measured with the device junction in thermal equilibrium at the lead temperature of +30C 1C and 3/8” lead length. Note 2. 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 the AC frequency = 60Hz. 1.000 (25.4) Min .200 (5.08) Max .022 (.509) Dia Max Color Band Denotes Cathode .090 (2.28) Dia Max .


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