p.o. box 104 133 kings road madison nj 07940 4 0 amp 1/2" press fit stud mount scr MCR3935 - * 1. gate 2. cathode 3. anode (stud) sym. inches a 1.150 b 0.114 0.110 c 0.453 0.422 d 1.603 1.572 e 1.243 1.132 f 0.562 0.544 maximum ratings symbol device numbers units repetitive peak off - state voltage and repetitive peak reverse voltage gate open, and tj = 110 c 50 100 200 400 600 - 2 - 3 - 4 - 6 - 8 volt rms on - state current at tc = 80o c and conduction angle of 360o it(rms) 40 amp peak surge (non - repetitive) on - state current, one - cycle, at 50hz or 60hz itsm 400 amp peak gate - trigger current for 3sec. max. igtm 2 amp peak gate - power dissipation at igt < igtm pgm 20 watt average gate - power dissipation pg(av) 0.5 watt storage temperature range tstg - 40 to +150 c operating temperature range, tj toper - 40 to +150 c peak off - state current gate open, tc=110c vdrm & vrrm=max. rating idrm & irrm 1.0 ma max. maximum on - state voltage, (peak) at tc = 25 c and it = rated amps vtm 1.6 volt max. dc holding current, gate open and tc = 25 c iho 50 ma max. critical rate - of - rise of off - state voltage, gate open, tc = 110 c critical dv/dt 200 v/sec. dc gate - trigger current for anode voltage = 12vdc, rl = 60 and at tc = 25 c igt 25 ma max. dc gate - trigger voltage for anode voltage = 12vdc, rl = 60 and at tc = 25 c vgt 2.0 volt max. gate - controlled turn - on time for td + tr, igt = 150 ma and tc = 25 c t gt 2.5 sec. thermal resistance, junction - to - case r j - c 1.4 c/watt typ
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