s 8 t g = g fy s 8 8 = FAST RECOVERY RECTIFIERS SELECTOR GUIDE n ke 8 ? wn oO Zz e <a a ir] 9 <a Ee a oO > 6 2 20 25 30 100 140 250400 750 Ik AVERAGE CURRENT-AMPERES STANDARD RECTIFIERS SELECTOR GUIDE 1N3987-90 IN4S10-1 IN3289-96/4870 ai70 4180 Aa INHBIA- (2 12 20 20 20 25 35 35 40 = 100 100 I50 160 250 275 400 7401000 1500 AVERAGE CURRENT AMPERES 130Silicon 1N248C-50C Rectifier 1N1195A-98A 20 A Types SaSaeaeaeaeaeaeeeeeee eee eEOee onaoa eee These stud mounted diffused junction silicon rectifiers are designed for all rectifier applica- tions in the 20 ampere range. A high junction temperature rating and an extremely low forward voltage drop and thermal impedance permit high current operation with min- 3) imum space requirements. These rectifiers may be mounted directly to a chassis or a fin or may be electrically insulated from the heat sink by using the mica washer insulating kit General Electric research, advanced development and product design have resulted in a < highly efficient rectifying junction. This feature, plus a mechanical design employing high temperature hard solders and welds for all internal and external joints and seals, which eliminates common sources of thermal fatigue failure, has produced a silicon rec- tifier with outstanding reliability under all operating conditions. electrical ratings and specifications (60 ps, Resistive or Inductive Load) 1N248C 1N249C 1N250C 1N1195A 1N1196A 1N1197A 1N1198A Max. Allow. Peak Reverse Voltage (Repetitive) * 55 110 220 300 400 500 600 Volts Max. Allow. RMS Voltage 89 17 154 212 284 355 424 Volts Max. Allow. DC Blocking Voltage** 50 100 200 300 400 500 600 Volts Max. Allow. Forward Current (Single Phase or Three Phase 150C stud temp.) eq 20 Amp DC Peak Recurrent Forward Current Max. Allow. Peak One-Cycle Surge Current < 350 Amp Max. Full Load Voltage Drop (Full Cycle Average when operated at Max. Inc and PRV) < 0.6 Volts Max. Leakage Current at Full Load (Single Phase, Full Cycle Average, 150C stud temp.) 3.8 3.6 3.4 3.2 2.5 2.2 1.5 ma. Junction Operating and Storage Temp. Range 65C to +175C > Maximum Stud Torque 30 inch-pounds. NZ 90 Amp N yYwv VY *Maximum voltages apply with a heat sink thermal resistance of 12C/watt or less at maximum rated junction temperature. **Maximum voltages apply with a heat sink thermal resistance of 5C/watt or less at maximum rated junction temperature. 2031N248C-50C 1N1195A-98A OUTLINE DRAWING DIRECTION OF EASY CONVENTIONAL CURRENT FLOW \/4-28 NF-2A 150 "140 DIA 220 NOTES: (1) UNIT WEIGHT -.5 OZ. DIAZ 7] 25 | (2) MICA WASHER IN MOUNTING KIT MAY ADO APPROX 2.5C /WATT MIN. 8 : THERMAL RESISTANCE STUD TO HEATSINK ~ * 452 | 450,] | AVAILABLE UPON REQUEST. 422] MAX 1 MIN COMPLIES WITH }-1000_, EIA REGISTERED OUTLINE DO-5 400 300 200 MAXIMUM LEAKAGE CURRENT JUNCTION TEMPERATURE 25C TO I75C IN248C IN249C a o INIIS6A INLI97A 3 NII9S8A INSTANTANEOUS REVERSE CURRENT-MA TYPICAL INSTANTANEOUS FORWARD VOLTAGE DROP JUNCTION TEMPERATURE 25C INSTANTANEOUS FORWARD CURRENT- AMPERES 0 100 200 300 400 500 600 700 INSTANTANEOUS INVERSE VOLTAGE-VOLTS Il. REVERSE CHARACTERISTICS 0 5 10 15 20 25 3.0 INSTANTANEOUS FORWARD VOLTAGE DROP- VOLTS 1. TYPICAL FORWARD CHARACTERISTICS 350 300 MAXIMUM ALLOWABLE 250 SURGE CURRENT AT RATED LOAD CONDITIONS n a x LFF} a = < z ied E & = 5 t 2 g = 200 ~ ii 5 3 uy a M zg SIX PHASE w 150 p= 3 z 3 = z! % 100 a 2 5 t 4 =x ~ 50 =< at a | 2 4 6 8 10 20 40 60 AVERAGE FORWARD CURRENT AMPERES ill. MAXIMUM ALLOWABLE STUD TEMPERATURE CYCLES AT 60 CPS IV. SURGE RATING 204