features data sheet no. srdb-3500p-1a mechanical specification 35 amp fast switching bridge rectifiers soft recovery maximum ratings & electrical characteristics ratings at 25 c ambient temperature unless otherwise specified. f1 inches millimeters min 9.6 17.5 15.7 28.4 sym bl bh d1 d2 max max 9.8 16.7 18.5 28.7 0.69 min 1.12 0.38 0.62 1.13 0.39 0.66 0.73 d3 0.53 13.5 14.5 0.57 lt 0.6 15.2 n/a n/a inches millimeters min 9.6 10.9 17.5 28.4 sym bl bh d1 ll d2 max max 9.8 18.5 11.9 28.7 0.43 min 1.12 0.38 0.69 1.13 0.39 0.73 0.47 ld 1.0 1.1 0.039 0.042 0.81 20.6 n/a n/a d3 d1 d1 bl d2 bl bh lt ld ll bh d1 d2 bl d1 bl top view of heat sink heat sink + _ acac ul recognized - file #e124962 tel.: (310) 767-1052 fax: (310) 767-7958 diotec electronics corp. gardena, ca 90248 u.s.a 18020 hobart blvd., unit b wide range of applications: motor speed controllers, inverters, converters, choppers, power supplies, etc. void free vacuum die soldering for maximum mechanical strength and heat dissipation (solder voids: typical < 2%, max. < 10% of die area) true soft recovery characteristic with no ringing, spikes, or overshoot high frequency: 250 khz fast recovery: 100ns - 150ns unmatched performance - minimal rfi/emi reduced power losses, extremely cool operation increased power supply efficiency proprietary junction passivation reliability and performance for superior average forward rectified current, t = 50 c c o parameter (test conditions) maximum dc blocking voltage maximum peak recurrent reverse voltage maximum rms voltage series number i o v rms v rrm v rm symbol fdb fdb ratings fdb fdb fdb 50 100 200 400 35 70 140 280 peak forward surge current (8.3ms single half sine wavesuperimposed on rated load) maximum forward voltage, per diode, at 17.5 amps dc v fm i fsm maximum average dc reverse current at rated dc blocking voltage per diode i rm @ t = 25 c a o @ t = 125 c a o t rr 600 50 100 200 400 600 420 3500p-s 3501p-s 3502p-s 3504p-s 3506p-s maximum reverse recovery time r q jc typical thermal resistance, junction to case operating and storage temperature range t t j, stg 35 400 1.25 1.0 50 1.2 150 (typ. 100) -55 to +150 units volts volts amps m a ns c/w c 3.01 35dbp-s use suffix "t" for terminals fast-on example p/n: db3506p/t-s example p/n: db3506p/w-s use suffix "w" for wire leads notes: (1) bolt bridge on heat sink silicon thermal compound between bridge and mounting surface with #8 screw, using mechanical data max. mounting torque = 20 in-lb. case: terminals: round silver plated copper pins or fast-on terminals soldering: per mil-std 202 method 208 guaranteed polarity: marked on side of case mounting position: any. through hole for #8 screw. weight: fast-on terminals - 0.72 ounces (20.3 grams) case: molded epoxy with integral heat sink epoxy carries a u/l flammability rating of 94v-0 wire leads - 0.65 ounces (18.3 grams) rohs compliant
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