HER304

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 301 HER 302 HER 303 HER 304 HER 305 HER 306 HER 307 HER 308 Units Maximum repetitive peak reverse voltage Maximum RMS voltage Maximum DC blocking voltage 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 TJ = 25 C O TJ = 100 C O VRRM VRMS VDC IO IFSM VF IR Trr CJ RθJA TJ ,TSTG 50 35 50 100 70 100 200 140 200 300 210 300 3.0 150 400 280 400 600 420 600 800 1000 560 700 800 1000 Volts Volts Volts Amps Amps 1.0 1.3 10 500 50 75 60 -55 to +150 1.7 Volts µAmps Maximum reverse recovery time (Note 1) Typical junction capacitance (Note 2) Typical junction resistance (Note 3) Operating and storage temperature range 75 50 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 50 NONINDUCTIVE 10 NONINDUCTIVE +0.5A DUT (+) 25Vdc (appox) (-) 1 NON INDUCTIVE OSCILLOSCOPE (NOTE 1) -1.0A 1cm SET TIME BASE FOR 50ns/cm PULSE GENERATOR (NOTE 2) 0 -0.25A trr 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 PEAK FORWARD SURGE CURRENT, A TYPICAL FORWARD CURRENT DERATING AVERAGE FORWARD CURRENT (A) 150 120 90 60 30 0 1 2 4 6 10 20 40 60 100 NUMBER OF CYCLES AT 60 Hz 4.0 0.375" (9.5mm) LENGTH 3.0 2.0 1.0 0 25 50 75 100 125 150 175 200 AMBIENT TEMPERATURE,o C TYPICAL REVERSE LEAKAGE CHARACTERISTICS 100 FORWARD CHARACTERISTICS 10 FORWARD CURRENT, AMPERES Tj =150 C 10 o HER301 TYPICAL 1 INSTANTANEOUS REVERSE LEAKAGE CURRENT, (MICROAMPERES) Tj =100 C 1 o 0.1 HER308 o Tj=25 C Tj =25 C o 0.1 0.01 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0.01 0 20 40 60 80 100 120 140 FORWARD VOLTAGE VOLTS 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