HER301 thru HER308 REVERSE VOLTAGE - 50 to 1000 Volts FORWARD CURRENT - 3.0 Amperes HIGH EFFICIENCY RECTIFIERS DO- 27 FEATURES Low cost Diffused junction .052(1.3) .048(1.2) DIA. Ultra fast switching for high efficiency Low reverse leakage current 1.0(25.4) MI Low forward voltage drop High current capability The plastic material carries UL recognition 94V-0 210 .375(9.5) .335(8.5) .220(5.6) .197(5.0) DIA MECHANICAL DATA Case: JEDEC DO-27 molded plastic 1.0(25.4) MI Polarity: Color band denotes cathode Weight: 0.04ounces , 1.1grams Mounting position: Any Dimensions in inches and (millimeters) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Rating at 25 ambient temperature unless otherwise specified. Single phase, half wave ,60Hz, resistive or inductive load. For capacitive load, derate current by 20% CHARACTERISTICS SYMBOL HER301 HER302 HER303 HER304 HER305 HER306 HER307 HER308 Maximum Recurrent Peak Reverse Voltage VRRM 50 Maximum RMS Voltage VRMS VDC Maximum DC Blocking Voltage Maximum Average Forward @TA =55 Rectified Current 100 200 300 400 600 800 35 70 140 210 280 420 50 100 200 300 400 600 UNIT 1000 V 560 700 V 800 1000 V I(AV) 3.0 A IFSM 150 A Peak Forward Surage Current 8.3ms Single Half Sine-Wave Super Imposed on Rated Load(JEDEC Method) Peak Forward Voltage at 3.0A DC(Note1) Maximum DC Reverse Current @TJ=25 at Rated DC Blocking Voltage @TJ=100 Maximum Reverse Recovery Time(Note 1) Typical Junction Capacitance (Note2) Typical Thermal Resistance (Note3) Operating Temperature Range Storage Temperature Range 1.3 1.0 VF 1.7 5.0 IR V uA 100 TRR 50 75 nS CJ 50 30 pF RJA 20 /W TJ -50 to +125 TSTG -50 to +150 NOTES: 1.Measured with IF=0.5AIR=1A IRR=0.25A 2.Measured at 1.0 MHz and applied reverse voltage of 4.0V DC 3.Thermal resistance junction to ambient ~ 95 ~ RATING AND CHARACTERTIC CURVES HER301 thru HER308 FIG. 1 - FORWARD CURRENT DERATING CURVE PEAK FORWARD SURGE CURRENT (AMPERES AVERAGE FORWARD CURRENT AMPERES 3.0 SINGLE PHASE HALF WAVE 60Hz RESISTIVE OR INDUCTIVE LOAD 2.5 2.0 1.5 1.0 0.5 0 25 50 75 100 125 150 FIG. 2 - MAXIMUM NON-REPETITIVE SURGE CURRENT 200 150 100 50 SINGLE HALF-SINE-WAVE (JEDEC METHOD) 0 175 1 2 10 20 100 50 NUMBER OF CYCLES AT 60Hz AMBIENT TEMPERATURE () FIG.4-TYPICAL FORWARD CHARACTERISTICS FIG.3 - TYPICAL JUNCTION CAPACITANCE 100 100 INSTANTANEOUS FORWARD CURRENT (AMPERES) 1000 CAPACITANCE (pF) 5 HER301-HER305 HER306-HER308 10 T J = 25C f = 1 MHz HER 10 305 HER301-HER304 HER306-HER308 1.0 TJ = 25C PULSE WIDTH 300us 0.1 1 1 1.0 10 0 100 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 INSTANTANEOUS FORWARD VOLTAGE (VOLTS) REVERSE VOLTAGE (VOLTS) ~ 96 ~ 1.8