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1N4742A Datasheet(PDF) 3 Page - Kingtronics International Company |
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1N4742A Datasheet(HTML) 3 Page - Kingtronics International Company |
3 / 5 page Website: www.kingtronics.com Email: info@kingtronics.com Tel: (852) 8106 7033 Fax: (852) 8106 7099 3 1N4727A...1N4761A Characteristics at Ta=25℃ Zener Voltage Range 3) Dynamic Resistance 1) Reverse Current Maximum Surge Current 4) Vznom VZT at IZT ZZT ZZk at IZK IR at VR at Ta = 25℃ Maximum Regulator Current 2) TYPE (V) (V) (mA) Max. (Ω) Max. (Ω) (mA) Max.(µA) (V) IZSM (mA) IZM (mA) 1N4759A 62 58.9…65.1 4 125 2000 0.25 5 47.1 70 14 1N4760A 68 64.6…71.4 3.7 150 2000 0.25 5 51.7 65 13 1N4761A 75 71.25…78.75 3.3 175 2000 0.25 5 56 60 12 1) The dynamic resistance is derived from the 60 Hz AC voltage which results when an AC current having an RMS value equal to 10% of the Zener Current (IZT or IZK) is superimposed on IZT or IZK. Dynamic resistance is measured at two points to insure a sharp knee on the breakdown curve and to eliminate unstable units. 2) Valid provided that leads at a distance of 8 mm from case are kept at ambient temperature. 3) Tested with pulses tp = 20 ms. 4) The rating listed in the electrical characteristics table is maximum peak, non-repetitive, reverse surge current of 1/2 square wave or equivalent sine wave pulse of 1/120 second duration superimposed on the test current IZT. |
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