naina semiconductor ltd. NPSS25 1 d-95, sector 63, noida C 201301, india ? tel: 012 0-4205450 ? fax: 0120-4273653 sales@nainasemi.com ? www.nainasemi.com press fit stud mount scr ?, 25 amps features ? improved glass passivation for high reliability ? exceptional stability at high temperatures ? metric thread type available ? low thermal resistance electrical characteristics (t a = 25 0 c unless otherwise specified) parameter symbol part numbers units maximum repetitive peak reverse voltage, v rrm 50 NPSS250 v 100 NPSS251 200 NPSS252 400 NPSS254 600 NPSS256 maximum average forward output current i t(av) 25 a peak forward surge current, single half sine-wave i tsm 250 a peak gate trigger current i gtm 2 a peak gate power dissipation @ i gt i gtm p gm 20 w average gate power dissipation p g(av) 0.5 w peak off-state current i drm & i rrm 1.0 ma maximum instantaneous forward voltage drop @ 100 a v tm 1.5 v dc holding current i h 50 ma critical rate-of-rise of off-state voltage dv/dt 20 0 v/sec gate trigger current i gt 25 ma gate trigger voltage v gt 2.0 v turn-on time tgt 2.5 sec thermal and mechanical specifications (t a = 25 o c, unless otherwise noted) parameters symbol values units maximum operating junction temperature range t j - 40 to +110 o c maximum storage temperature range t stg - 40 to +150 o c maximum thermal resistance, junction to case r (j-c) 1.8 o c/w approximate weight w 20 g to - 48 /f
naina semiconductor ltd. NPSS25 2 d-95, sector 63, noida C 201301, india ? tel: 012 0-4205450 ? fax: 0120-4273653 sales@nainasemi.com ? www.nainasemi.com package outline (all dimensions in mm) ordering table npss 25 0,1,2,4,6 1 2 3 1 C press fit stud mount scr 2 C current, i f(av) 3 C voltage, v rrm (see table)
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