HER301 THRU HER308 HIGH EFFICIENCY RECTIFIERS Reverse Voltage – 50 to 1000 Volts Forward Current – 3.0 Amperes Features • Plastic package has Underwriters Laboratory Flammability Classification 94V-O utilizing Flame Retardant Epoxy Molding Compound. • Void-free Plastic in DO-201AD package. • 3.0 amperes operation at Ta = 55 oC with no thermal runaway • Ultra Fast switching for high efficiency. Mechanical Data • Case: Molded plastic, DO-201AD • Polarity: Band denotes cathode • Lead: Axial leads, solderable per MIL-STD-202 method 208 guaranteed • Mounting Position: Any MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25oC ambient temperature unless otherwise specified. Single phase, half wave, 60Hz, resistive or inductive load. Symbols HER HER HER HER HER HER HER HER 301 302 303 304 305 306 307 308 100 200 300 400 600 800 1000 Volts Units Maximum repetitive peak reverse voltage VRRM 50 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 O at TA = 55 C Peak forward surge current 8.3mS single half sine-wave superimposed on rated load (JEDEC method) Maximum instantaneous forward voltage at 3.0A DC Maximum reverse current at rated reverse voltage IO 3.0 Amps IFSM 150 Amps VF 1.0 1.3 O TJ = 25 C O TJ = 100 C 1.7 10 500 IR µAmps Maximum reverse recovery time (Note 1) Trr 50 75 Typical junction capacitance (Note 2) CJ 75 50 Typical junction resistance (Note 3) Operating and storage temperature range RθJA 60 TJ ,TSTG -55 to +150 Volts nSec pF O C/W O C Notes: 1. Test Conditions: IF = 0.5A, IR = -1.0A, IRR = -0.25A. 2. Measured at 1 MHz and applied reverse voltage of 4.0 volts. 3. Thermal resistance from junction to ambient and from junction to lead length 0.375”(9.5mm) P.C.B. mounted. SEMTECH ELECTRONICS LTD. ® (Subsidiary of Semtech International Holdings Limited, acompany listed on the Hong Kong Stock Exchange, Stock Code: 724) Dated : 12/04/2003 HER301 THRU HER308 REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM 10 NONINDUCTIVE 50 NONINDUCTIVE trr +0.5A DUT (+) 25Vdc (appox) (-) 0 PULSE GENERATOR (NOTE 2) 1 NON INDUCTIVE -0.25A OSCILLOSCOPE (NOTE 1) -1.0A 1cm SET TIME BASE FOR 50ns/cm NOTES:1. Rise Time=7ns max. Input Impedance= 1 megohm 22 pf 2. Rise Time=10ns max. Sourse Impedance= 50 ohms PEAK FORWARD SURGE CURRENT AVERAGE FORWARD CURRENT (A) 150 PEAK FORWARD SURGE CURRENT, A TYPICAL FORWARD CURRENT DERATING 120 90 60 30 0 1 2 4 6 10 20 4.0 0.375" (9.5mm) LENGTH 3.0 2.0 1.0 0 25 40 60 100 50 75 100 125 150 175 200 AMBIENT TEMPERATURE,o C NUMBER OF CYCLES AT 60 Hz TYPICAL REVERSE LEAKAGE CHARACTERISTICS 100 FORWARD CHARACTERISTICS 10 o FORWARD CURRENT, AMPERES Tj =150 C INSTANTANEOUS REVERSE LEAKAGE CURRENT, (MICROAMPERES) 10 HER301 TYPICAL 1 HER308 o Tj=25 C 0.1 o Tj =100 C 1 o Tj =25 C 0.1 0.01 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0.01 FORWARD VOLTAGE VOLTS 0 20 40 60 80 100 120 140 PERCENT OF RATED PEAK REVERSE VOLTAGE, (%) SEMTECH ELECTRONICS LTD. ® (Subsidiary of Semtech International Holdings Limited, acompany listed on the Hong Kong Stock Exchange, Stock Code: 724) Dated : 12/04/2003