WESTCODE SEMICONDUCTORS Fast Recovery Stud-Base Diode Type 1N3879-83 6 amperes average: up to 400volts VRRM RATINGS (Maximum values at Tj 150C unless stated otherwise) LIE D MM 709955 Go020b5 4 mm 7293-/9 Gy) WESTCODE @ SEMICONDUCTORS Technical Publication 1N3879-83 Issue 1 February 1981 RATING CONDITIONS SYMBOL Average forward current Half sine wave 100C case temperature letay) 6A RMS current lecams) 47A DC forward current I. 47A wes . 60% V re-applied Irons (1) 125A Peak one-cycle surge (non repetitive) 10ms sine ulse| RAM max. FSM Vam<i0 volts lesa, (2) 145A anni 2 2 Maximum surge |?t 10ms sine pulse 60% Ven re applied ren TBA's RMS 10 volts I? t (2) 105A?s 3ms sine pulse V au 19 volts 12+ 13) 78A?25 Operating temperature range Tease -65,+150C Storage temperature range Tstg -65,4175C CHARACTERISTICS (Maximum values at Tj 150C unless stated otherwise) CHARACTERISTIC CONDITIONS SYMBOL Peak forward voltage drop At 40A, fey, Vee 1.7V Forward conduction threshold voltage | Vo 1.35V Forward conduction slope resistance r 8.4m%2 Peak reverse current Vam = Var (max.) Te 150C InRM 1umA ; Juneti T= 25C laam 1mA Thermal resistance Conner to case Rth (j-e) 2.0C/W ase to heatsink Reh(c-hs) 0.25C/W ; ley = 1A, di/dt = 25 A/us Reverse recovery time Vam =50V, Tj = 25C try 0.2ps VOLTAGE CODE 879 880 881 882 883 Repetitive voltage Varm 50 100 200 300 400 Non-repetitive voltage Vichy 100 200 300 400 500 @ ORDERING INFORMATION (Please quote device code as -explained below 6 or 7 digits) ~- 1 N 3 e e e e FIXED JEDEC FIXED VOLTAGE CODE for reverse polarity add CODE CODE (see above) suffix R Typical codes 1N3881 = 200Vppy, diode with base cathode 1N3881R = 200Varm diode with base anode WESTCODE SEMICONDUCTORS LIMITED A subsidiary of Westinghouse Brake and Signal Co. Ltd. P. O. BOX 57, CHIPPENHAM, WILTS. SN15 1JL ENGLAND O&A HAWKER SIDDELEY COMPANY