#A MOSPEC Switchmode Power Rectifiers ... Designed for use in switching power supplies. inverters and as free wheeling diodes. These state-of-the-art devices have the following features: * High Surge Capacity * Low Power Loss, High efficiency * Glass Passivated chip junctions * 150C Operating Junction Temperature * Low Stored Charge Majority Carrier Conduction * Low Forward Voltage , High Current Capability * High-Switching Speed 50 & 75 Nanosecond Recovery Time * Plastic Material used Carries Underwriters Laboratory Flammability Classification 94V-O MAXIMUM RATINGS HER301 thru HER305 HIGH EFFICIENCY RECTIFIERS 3.0 AMPERES 50 -- 400 VOLTS DO-201AD Characteristic Symbol HER Unit 301 | 302 | 303 | 304 | 305 Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage RRM RWM << 50 | 100 | 200 | 300 | 400 RMS Reverse Voltage Vrms) 35 70 | 140 | 210 | 280 Average Rectifier Forward Current 3.0 Non-Repetitive Peak Surge Current ( Surge applied at rate load conditions halfware,single phase,60Hz ) 50 Operating and Storage Junction Temperature Range - 65 to + 150 C MILLMETERS MIN |MAX DIM ELECTRICAL CHARACTERISTICS A 5.00; 5.60 B 25.40 Characteristic Symbol HER Cc 8.50} 9.50 Unit 301 | 302 | 303 | 304 | 305 D 1.20) 1.30 Maximum Instantaneous Forward Voltage (lp=3.0 Amp, T. = 25 C) 1.00 1.30 Maximum Instantaneous Reverse Current ( Rated DC Voltage, T, = 25 C) ( Rated DC Voltage, T, = 125 C) 5.0 70 uA CASE--- Transfer molded plastic Reverse Recovery Time (lp =O0.5A, 1, =1.0, |, =0.25 A ) SO 75 POLARITY--- Cathode indicated ns nd Typical Junction Capacitance ( Reverse Voltage of 4 volts & f=1 MHz) 55 45 pF polarity band HER301 Thru HER305 INSTANTANEOUS REVERSE CURRENT (uA} INSTANTANEOUS FORWARD CURRENT (Amp.} o S = FIG-1 TYPICAL FORWARD CHARACTERISTICS = = io ey HER301-303 ER304-305 0.6 08 { FORWARD VOLTAGE (Volts.) FIG-2 TYPICAL REVERSE CHARACTERSTICS oO HER301-303 HER304-305 20 40 60 80 100 120 PERCENT OF PEAK REVERSE VOLTAGE(%) +} son Ni 100 NI AAA summed th tht Device Under (-) Test = 50 Vde Pulse = Apprex Generator ly (Note 2) 1 Oscilloscope + NI (Note 1) (+) Notes: 1. Rise Time = 7 ns max. Input impedance =1 M , 22 pF 2. Rise Time = 10 ns max. Input Impedance = 509 140 JUNCTION CAPACITANCE (pF) AVERAGE FORWARD RECTFED CURRENT (Amp) PEAK FORWARD SURGE CURRENT (Amp) oe nw o o 200 e 3 a o 50 40 40.54 -0,25A, 1.04 FIG-3 FORWARD CURRENT DERATING CURVE 25 50 15 100 125 150 LEAD TEMPERATURE (C ) FIG-4 TYPICAL JUNCTION CAPACITANCE HER301-303 5 10 50 100 REVERSE VOLTAGE (Valts.) FIG-5 PEAK FORWARD SURGE CURRENT N DR MT f-~~ SHH 5 10 50 100 NUMBER OF CYCLES AT 60 Hz ~- ty Set time base for 20 ns/div Fig-6 Reverse Recovery Time Characteristic and Test Circuit Diagram