1N971B

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 Power Dissipation (TL  +50C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW Derate Above 50C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.33mW/C Forward Voltage (IF = 200mA), VF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5V Electrical Characteristics: (TC = +25C, unless otherwise specified) Device Number Nominal Maximum Zene Impedance Zener (Note 2) Test Voltage Current VZ ZZT @ IZT ZZK @ IZK IZK IZT (Note 1) Maximum DC Zener Current IZM IR Max mA A 5% Maximum Reverse Current Test Voltage Vdc Volts mA Ohms Ohms mA VR 10% 1N957B 6.8 18.5 4.5 700 1.0 47 61 150 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 Nominal Maximum Zene Impedance Zener (Note 2) Test Voltage Current VZ ZZT @ IZT ZZK @ IZK IZK IZT (Note 1) Maximum DC Zener Current IZM IR Max mA A 5% Maximum Reverse Current Test Voltage Vdc Volts mA Ohms Ohms mA VR 10% 1N964B 13 9.5 13.0 700 0.25 24 32 5 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 .090 (2.28) Dia Max Color Band Denotes Cathode