HER301 - HER308 HIGH EFFICIENT RECTIFIER DIODES PRV : 50 - 1000 Volts Io : 3.0 Amperes DO-201AD FEATURES : * * * * * * High current capability High surge current capability High reliability Low reverse current Low forward voltage drop Fast switching for high efficiency 1.00 (25.4) MIN. 0.21 (5.33) 0.19 (4.82) 0.375 (9.52) 0.285 (7.24) MECHANICAL DATA : 1.00 (25.4) MIN. 0.052 (1.32) 0.048 (1.22) * Case : DO-201AD Molded plastic * Epoxy : UL94V-O rate flame retardant * Lead : Axial lead solderable per MIL-STD-202, Method 208 guaranteed * Polarity : Color band denotes cathode end * Mounting position : Any * Weight : 1.16 grams Dimensions in inches and ( millimeters ) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Rating at 25 °C ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20%. SYMBOL HER 301 HER 302 HER 303 HER 304 HER 305 HER 306 HER 307 HER 308 UNIT Maximum Recurrent Peak Reverse Voltage VRRM 50 100 200 300 400 600 800 1000 V Maximum RMS Voltage VRMS 35 70 140 210 280 420 560 700 V Maximum DC Blocking Voltage VDC 50 100 200 300 400 600 800 1000 V RATING Maximum Average Forward Current 0.375"(9.5mm) Lead Length Ta = 55 °C IF(AV) 3.0 A IFSM 150 A Maximum Peak Forward Surge Current, 8.3ms Single half sine wave superimposed on rated load (JEDEC Method) Maximum Forward Voltage at IF = 3.0 A Maximum DC Reverse Current Ta = 25 °C at Rated DC Blocking Voltage Ta = 100 °C VF 1.1 1.7 V IR 10 µA IR(H) 50 µA Maximum Reverse Recovery Time ( Note 1 ) Trr 50 75 ns Typical Junction Capacitance ( Note 2 ) CJ 50 pf Junction Temperature Range TJ - 65 to + 150 °C Storage Temperature Range TSTG - 65 to + 150 °C Notes : ( 1 ) Reverse Recovery Test Conditions : IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A. ( 2 ) Measured at 1.0 MHz and applied reverse voltage of 4.0 VDC Page 1 of 2 Rev. 01 : January 10, 2004 RATING AND CHARACTERISTIC CURVES ( HER301 - HER308 ) FIG.1 - REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM 50 Ω Trr 10 Ω + 0.5 A D.U.T. + 0 PULSE GENERATOR ( NOTE 2 ) 50 Vdc (approx) 1Ω - 0.25 A OSCILLOSCOPE ( NOTE 1 ) - 1.0 A SET TIME BASE FOR 25-35 ns/cm NOTES : 1. Rise Time = 7 ns max., Input Impedance = 1 megaohm, 22 pF. 1 cm 2. Rise time = 10 ns max., Source Impedance = 50 ohms. 3. All Resistors = Non-inductive Types. FIG.2 - DERATING CURVE FOR OUTPUT RECTIFIED CURRENT FIG.3 - MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT 150 PEAK FORWARD SURGE CURRENT, AMPERES AVERAGE FORWARD OUTPUT CURRENT, AMPERES 3.0 2.4 1.8 1.2 0.6 8.3 ms SINGLE HALF SINE WAVE Ta = 50 °C 120 90 60 30 60Hz RESISTIVE OR INDUCTIVE LOAD 0 0 25 50 75 100 125 150 0 175 1 2 AMBIENT TEMPERATURE, ( °C) 6 10 20 40 60 100 FIG.5 - TYPICAL REVERSE CHARACTERISTICS REVERSE CURRENT, MICROAMPERES FIG.4 - TYPICAL FORWARD CHARACTERISTICS 100 FORWARD CURRENT, AMPERES 4 NUMBER OF CYCLES AT 60Hz Pulse Width = 300 µs 2% Duty Cycle TJ = 25 °C 10 HER301-HER305 1.0 HER306-HER308 0.1 10 TJ = 100 °C 1.0 0.1 TJ = 25 °C 0.01 0 20 40 60 80 100 120 140 PERCENT OF RATED REVERSE VOLTAGE, (%) 0.01 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 FORWARD VOLTAGE, VOLTS Page 2 of 2 Rev. 01 : January 10, 2004