CURRENT 5.0 Amperes VOLTAGE 50 to 1000 Volts HER501 THRU HER508 Features * Plastic package has Underwriters Laboratory Flammability Classification 94V-0 * Low forward voltage drop * High current capability * High reliability * Low power loss, high effciency * High surge current capability * High speed switching * Low leakage DO-201AD 0.210(5.3) 0.188(4.8) DIA. 1.0(25.4) MIN. 0.375(9.5) 0.285(7.2) Mechanical Data * Case : JEDEC DO-201AD molded plastic body * Epoxy : UL94V-0 rate flame retardant * Lead : Plated axial lead solderable per MIL-STD-750, method 2026 * Polarity : Color band denotes cathode end * Mounting Position : Any * Weight : 0.074 ounce, 2.1 gram 1.0(25.4) MIN. 0.042(1.1) 0.037(0.9) DIA. Dimensions in inches and (millimeters) Maximum Ratings And Electrical Characteristics (Ratings at 25 ambient temperature unless otherwise specified, Single phase, half wave 60Hz, resistive or inductive load. For capacitive load, derate by 20%) Symbols HER 501 HER 502 HER 503 HER 504 HER 505 HER 506 HER 507 HER 508 Units Maximum recurrent peak reverse voltage VRRM 50 100 200 300 400 600 800 1000 Volts Maximum RMS voltage VRMS 35 70 140 210 280 420 560 700 Volts Maximum DC blocking voltage VDC 50 100 200 300 400 600 800 1000 Volts Maximum average forward rectified current 0.375"(9.5mm) lead length @ at TA=50 I(AV) Peak forward surge current 8.3ms single half sine-wave superimposed on rated load (JEDEC method) IFSM Maximum instantaneous forward voltage at 2.0A VF 200.0 1.0 1.3 Maximum DC reverse current at rated DC blocking voltage Maximum full load reverse current full cycle average. 0.375"(9.5mm) lead length at TL=55 Amps 5.0 150.0 Amps 1.7 Volts 10.0 A IR 150 Maximum reverse recovery time (Note 1) Trr 50 75 ns Typical junction capacitance (Note 2) CJ 70 50 pF Operating junction and storage temperature range TJ TSTG Notes: (1) Test conditions: IF=0.5A, IR=1.0A, Irr=0.25A. (2) Measured at 1MHz and applied reverse voltage of 4.0 Volts. -65 to +150 RATINGS AND CHARACTERISTIC CURVES HER501 THRU HER508 50W NON INDUCTIVE (+) 10W NON INDUCTIVE D.U.T. ) 1W NON INDUCTIVE 0 PULSE GENERATOR (NOTE2) 25Vdc (APPROX) ( Trr +0.5A -0.25A OSCILLOSCOPE (NOTE1) -1.0A NOTES : 1.Rise Time=7ns max. input impedance=1 megohm 22pF 2.Rise Time=10ns max. source impedance = 50 ohms AVERAGE FORWARD CURRENT(A) FIG.2-TYPICAL FORWARD CURRENT DERATING CURVE FIG.1-TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC 1cm 6.0 5.0 SINGLE PHASE HALF WAVE 60Hz RESISTIVE OR INDUCTIVE LOAD 0.375"(9.5mm) LEAD LENGTH 4.0 3.0 2.0 1.0 0 0 SET TIME BASE FOR 10/20 ns/cm 25 50 75 100 125 150 175 AMBIENT TEMPERATURE ( ) FIG.4-TYPICAL REVERSE CHARACTERISTICS 1000 100 INSTANTANEOUS REVERSE CURRENT (mA) INSTANTANEOUS FORWARD CURRENT(AMPERES) FIG.3-TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS 50\100\200\300\400V 10 1 600\800\1000V TJ=25 0.1 100 TJ=150 10 TJ=100 1.0 TJ=25 0.1 PULSE WIDTH=300mS 1% DUTY CYCLE 0.01 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0.01 INSTANTANEOUS FORWARD VOLTAGE (VOLTS) 0 20 40 60 80 100 120 140 PERCENT OF RATED PEAK REVERSE VOLTAGE (%) FIG.5-MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT FIG6-TYPICAL JUNCTION CAPACITANCE 200 100 JUNCTION CAPACITANCE(pF) PEAK FORWARD SURGE CURRENT(AMPERES) 300 8.3m SINGLE HALF SINE WAVE (JEDEC Method) 200 100 HER501-HER505 60 40 HER506-HER508 20 10 6 4 TJ=25 2 1 0.1 0.2 0 1 5 10 NUMBER OF CYCLES AT 60Hz 50 100 0.4 1 2 4 REVERSE VOLTAGE. (V) 10 20 40 100