* diffused junction technical specification s of single-phase silicon bridge rectifier voltage range - 50 to 1000 volts current - 25 amperes maximum ratings and electrical characteristics ratings at 25 o c ambient temperature unless otherwise specified. single phase, half wave, 60 hz, resistive or inductive load. for capacitive load, derate current by 20%. mmb2505 thru mmb2510 mmb-25 rectifier specialists r dc components co., ltd. features * surge overload ratings - 400 amperes * case: metal case, electrically isolated mechanical data * epoxy: ul 94v-0 rate flame retardant * terminals: plated .25"(6.35mm) faston lugs, solderable per mil-std-202e, method 208 guaranteed * polarity: as marked * mounting position: any * weight: 25 grams approx. dimensions in inches and (millimeters) maximum recurrent peak reverse voltage maximum rms bridge input voltage maximum dc blocking voltage peak forward surge current 8.3 ms single half sine-wave superimposed on rated load (jedec method) symbol v rrm v dc i o i fsm v rms volts volts amps 25 400 units maximum average forward rectified output current at tc = 55 o c 50 200 400 100 600 800 1000 35 140 280 70 420 560 700 50 200 400 100 600 800 1000 volts amps dc blocking voltage per element v f i r 1.1 500 mamps maximum dc reverse current at rated maximum forward voltage drop per element at 12.5a dc volts 10 operating and storage temperature range t j, t stg -55 to +150 0 c notes : 1. measured at 1 mh z and applied reverse voltage of 4.0 volts. 2.thermal resistance from junction to case per leg. i2t rating for fusing (t<8.3ms) i2t 374 a2sec typical junction capacitance (note1) cj 300 pf typical thermal resistance (note 2) rqjc 2.5 0c/w mmb2505 mmb251 mmb252 mmb254 mmb256 MMB258 mmb2510 @t a = 25 o c @t a = 100 o c * metal case for maximum heat dissipation * low forward voltage drop * high reliability * high current capability .480(12.2).425(10.8) .673(17.1).633(16.1) .732(18.6).692(17.6) .673(17.1).633(16.1) 1.181(30.0)1.102(28.0) typ. ac ac 1.181(30.0)1.102(28.0) .582(14.8).543(13.8) .033 x .250 (0.8 x 6.4) hole for no. 8 screw .310(7.9).290(7.4) .500 (12.7)
r dc components co., ltd. rating and characteristic curves (mmb2505 thru mmb2510) single phase half wave 60hz inductive or resistive load case temperature, ( oc) 0 50 100 150 fig. 2 - typical forward current derating curve 25 20 15 10 5 average forward output current, (a) fig. 1 - maximum non-repetitive forward surge current peak forward surge current, (a) number of cycles at 60hz 1 2 5 10 20 50 100 0 500 200 400 100 8.3ms single half sine-wave (jedec mathod) 300 instantaneous forward voltage, (v) .6 .7 .8 .9 1.0 1.3 pulse width=300ms1% duty cycle fig. 3 - typical instantaneous forward characteristics 100 10 1 .1 1.2 1.1 instantaneous forward current, (a) tj=25oc percent of rated peak reverse voltage, (%) 0 20 40 60 80 100 120 140 fig. 4 - typical reverse characteristics 10 1.0 .1 .01 instantaneous reverse current, ( ma) tj=25oc
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