br3500 - br3512 silicon bridge rectifiers prv : 50 - 1200 volts io : 35 amperes features : * high current capability * high surge current capability * high reliability * low reverse current * low forward voltage drop * pb / rohs free mechanical data : * case : molded plastic with heatsink integrally mounted in the bridge encapsulation * epoxy : ul94v-o rate flame retardant * terminals : plated .25" (6.35 mm). faston * polarity : polarity symbols marked on case * mounting position : bolt down on heat-sink with silicone thermal compound between bridge and mounting surface for maximum heat transfer efficiency. * weight : 17.1 grams maximum ratings and electrical characteristics rating at 25 c ambient temperature unless otherwise specified . single phase, half wave, 60 hz, resistive or inductive load. for capacitive load, derate current by 20%. symbol br 3500 br 3501 br 3502 br 3504 br 3506 br 3508 br 3510 br 3512 unit maximum recurrent peak reverse voltage v rrm 5010020040060080010001200 v maximum rms voltage v rms 3570140280420560700840 v maximum dc blocking voltage v dc 5010020040060080010001200 v maximum average forward current tc = 55 c i f(av) 35 a peak forward surge current single half sine wave superimposed on rated load (jedec method) current squared time at t < 8.3 ms. i 2 t 660 a 2 s maximum forward voltage per diode at i f = 17.5 a v f 1.1 v maximum dc reverse current ta = 25 c i r 10 m a at rated dc blocking voltage ta = 100 c i r(h) 200 m a typical thermal resistance (note 1) r q jc 1.5 c/w typical thermal resistance at junction to ambient r q ja 10 c operating junction temperature range t j - 40 to + 150 c storage temperature range t stg - 40 to + 150 c notes : 1. thermal resistance from junction to case with units mounted on a 7.5" x 3.5" x 4.6" (19cm.x 9cm.x 11.8cm.) al.-finned plate page 1 of 2rev. 02 : march 24, 2005 rating i fsm a 400 metal heatsink dimensions in inches and ( millimeters ) br50 f 0.728(18.50) 0.688(17.40) 0.570(14.50) 0.530(13.40) 0.685(16.70) 0.618(15.70) 1.130(28.70) 1.120(28.40) 0.210(5.30) 0 .200 ( 5 . 10 ) 0.658(16.70) 0.618(15.70) 0.032(0.81) 0.028(0.71) 0.252(6.40) 0.248(6.30) 0.905(23.0) 0.826(21.0) 0.100(2.50) 0.090(2.30) 0.310(7.87) 0.280(7.11)
rating and characteristic curves ( br3500 - br3512 ) fig.1 - derating curve for outputfig.2 - maximum non-repetitive peak rectified current forward surge current 0255075100125150175 case temperature, ( c) number of cycles at 60hz fig.3 - typical forward characteristicsfig.4 - typical reverse characteristics per diode per diode page 2 of 2rev. 02 : march 24, 2005 21 14 7 42 35 10010 1.0 400 0 600 0 300 200 100 0.1 10 80 0.01 0.01 1.0 0.1 100140 0204060120 percent of rated reverse voltage, (%) p e a k f o r w a r d s u r g e c u r r e n t , a m p e r e s a v e r a g e f o r w a r d o u t p u t c u r r e n t a m p e r e s f o r w a r d c u r r e n t , a m p e r e s r e v e r s e c u r r e n t , m i c r o a m p e r e s t j = 25 c pulse width = 300 m s 1 % duty cycle 8.3 ms single half sine wave jedec method t j = 50 c t j = 100 c t j = 25 c 28 500 10 20 60 1 2 4 6 40 100 1.21.4 1.8 0.40.60.81.01.6 heat-sink mounting, tc 7.5" x 3.5" x 4.6" thk. (19cm x 9cm x 11.8cm) al.-finned plate forward voltage, volts
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