BL GALAXY ELECTRICAL KBU8A - - - KBU8M VOLTAGE RANGE: 50 --- 1000 V CURRENT: 8.0A SILICON BRIDGE RECTIFIERS FEATURES KBU Rating to 1000V PRV .933(23.7) .894(22.7) Surge overload rating to 250 Amperes peak .185(4.7) .165(4.2) Ideal for printed circuit board .280(7.1) .260(6.6) .160(4.1) .140(3.6) 45 Reliable low cost construction utilizing molded .760(19.3)Max .085(2.2) .065(1.7) .700(17.8) .660(16.8) plastic technique results in inexpensive product 0 + + _ .075(1.9)R.TYP. (2 PLACES) ~ ~ .455(11.3) .405(10.3) + Lead solderable per MIL-STD-202 method 208 .205(5.2) .185(4.7) .260(6.6) .180(4.5) 1.0(25.4)Min .052(1.3) .048(1.2) .220(5.6) .180(4.6) Dimensions in inches and (mm) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25 ambient temperature unless otherwise specified. Single phase,half wave,60 Hz,resistive or inductive load. For capacitive load,derate by 20%. KBU 8A KBU 8B KBU 8D KBU 8G KBU 8J KBU 8K KBU 8M UNITS Maximum recurrent peak reverse voltage V RRM 50 100 200 400 600 800 1000 V Maximum RMS voltage V RMS 35 70 140 280 420 560 700 V Maximum DC blocking voltage V DC 50 100 200 400 600 800 1000 V Maximum average forw ard output current @TA=50 IF(AV) 8.0 A IFSM 250.0 A VF 1.0 V 10.0 μA 1.0 mA Peak forw ard surge current 8.3ms single half-sine-w ave superimposed on rated load Maximum instantaneous forw ard voltage @ 4.0 A Maximum reverse current at rated DC blocking voltage @TA =25 @TA=100 Operating junction temperature range Storage temperature range IR TJ - 55 ---- + 125 TSTG - 55 ---- + 150 www.galaxycn.com Document Number 0287024 BLGALAXY ELECTRICAL 1. RATINGS AND CHARACTERISTIC CURVES FIG.2 -- MAXIMUM FORWARD SURGE CURRENT PEAK FORWARD SURGE CURRENT, AMPERES AVERAGE FORWARD OUTPUT CURRENT, AMPERES FIG.1 -- TYPICAL FORWARD CURRENT DERATING CURVE 8 6 4 2 0 MOUNTES ON 4:4 INCH CPUFER PC BOARD 0.5"(12.7mm) Lead length 0 25 50 75 100 125 150 175 250 225 8.3ms Single Half Sine Wave TJ =125 200 175 150 125 100 75 1 2 INSTANTANEOUS REVERSE CURRENT, MICRO AMPERES 40 20 10 4.0 2.0 TJ=25 Pulse Width =300µS 0.4 0.2 0.1 0.7 0.8 0.9 1.0 1.1 1.2 10 20 50 100 FIG.4 -- TYPICAL REVERSE CHARACTERISTIC 100 1.0 5 NUMBER OF CYCLES AT 60HZ AMBIENT TEMPERATURE, FIG.3 -- TYPICAL FORWARD CHARACTERISTIC INSTANTANEOUS FORWARD CURRENT, AMPERES KBU8A - - - KBU8M 1.3 1.4 INSTANTANEOUS FORWARD VOLTAGE, VOLTS 10 TJ=100 1 .1 TJ=25 .01 0 20 40 60 80 100 120 140 PERCENT OF RATED PEAK REVERSE VOLTAGE FIG.5 -- TYPICAL JUNCTION CAPACITANCE PER ELEMENT CAPACITANCE, pF 400 100 TJ=25 50 10 1 10 100 REVERSE VOLTAGE, VOLTS www.galaxycn.com Document Number 0287024 BLGALAXY ELECTRICAL 2.