description features mechanical dimensions n diffused junction n meets ul specification 94v-0 maximum ratings rl251 . . . rl257 series data sheet 2.5 amp miniature plastic silicon rectifiers units volts volts volts ............................................. 2.5 ............................................... ............................................. 150 ............................................... ........................................ -65 to 175 ......................................... ............................................. 1.1 ............................................... ............................................. 5.0 ............................................... ............................................. 5 0 ............................................... ............................................. 2 8 ............................................... amps amps c volts m amps m amps pf c / w rl251 RL252 rl253 rl254 rl255 rl256 rl257 50 100 200 400 600 800 1000 35 70 140 280 420 560 700 50 100 200 400 600 800 1000 peak repetitive reverse voltage...v rrm rms reverse voltage...v r(rms) dc blocking voltage...v dc n low cost n low leakage page 9-10 average forward rectified current...i f(av) t a = 75 c (note 3) non-repetitive peak forward surge current...i fsm @ rated current & temp operating & storage temperature range...t j , t strg maximum forward voltage @ 2.5a...v f maximum dc reverse current...i r 25 c @ rated dc blocking voltage 100 c typical junction capacitance...c j (note 1) typical thermal resistance...r q ja (note 2) rl251 . . . 257 series < .................... 50 ................... > < ............. 25 ............ > . 230 .300 1.00 min. .031 typ. .104 .140 jedec d0-15 electrical characteristics
data sheet 2.5 amp miniature plastic silicon rectifiers page 9-11 ratings at 25 deg. c ambient temperature unless otherwise specified. single phase half wave, 60 hz resistive or inductive load. for capacitive load, derate current by 20%. rl251 . . . 257 series typical junction capacitance reverse voltage (v) junction capacitance (pf) instantaneous forward characteristics forward voltage (v) forward current (a) peak forward surge current number of cycles @ 60 hz peak forward surge current (a) forward current derating curve average forward current (a) ambient temperature ( c) distribution t j = 25 c t j = 175 c pw = 8.3ms notes: 1. measured @ 1 mhz and applied reverse voltage of 4.0v. 2. thermal resistance junction to ambient, jedec method. 3. .375", (9.5mm) lead lengths.
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