HER301 THRU HER308 Ultra Fast Rectifiers FEATURES DO-201AD(DO-27) · Plastic package has Underwriters Laboratory Flammability Classification 94V-O ctilizing Flame Retardant Epoxy Molding Compound. · Void-free Plastic in a DO-201AD package. · 3.0 ampere operation at T A=55℃ With no .937 23.8 thermal runaway. · Ultra Fast switching for high efficiency. · Exceeds environmental standards of MIL-S-19500/228 MECHANICAL DATA .937 23.8 Case: Molded plastic, DO-201AD Terminals: Axial leads, solderable per MIL-STD-202, method 208 guaranteed Polarity: Band denotes cathode Mounting position: Any Dimensions in inches and (millimeters) Weight: 0.04ounce, 1.1gram Maximum Ratings and Electrical Characteristics Ratings at 25 ℃ ambient temperature unless otherwise specified. Single phase, half wave, 60H Z, resistive or inductive load. For capacitive load, derate current by 20%. Symbols HER301 HER302 HER303 HER304 HER305 HER306 HER307 HER308 Units Maximum Recurrent Peak Reverse Voltage VRRM 50 100 200 300 400 600 800 1000 Volts 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 .375"(9.5mm) Lead Length at T A=55℃ I(AV) 3.0 Amp IFSM 125 Amp Peak Forward Surge Current, 8.3ms single half-sine-wave superimposed on rated load (JEDEC method) Maximum Forward Voltage at 3.0A and TA=25℃ Maximum Reverse Current at TJ=25℃ at Rated DC Blocking Voltage T J=100℃ VF 1.0 1.3 1.7 10.0 IR Volts uAmp 750 CJ 70 Maximum Reverse Recovery Time (Note 2) TRR 50 Typical Thermal Resistance (Note 3) RθJA 20 ℃/W TJ，Tstg -55 to +125 ℃ Typical Junction Capacitance (Note 1) Operating and Storage Temperature Range 50 75 NOTES: 1- Measured at 1 MH Z and applied reverse voltage of 4.0 VDC. 2- Reverse Recovery Test Conditions：IF=.5A，IR=1A，IRR=.25A. 3- Thermal Resistance from Junction to Ambient at 0.375"(9.5mm) lead length P.C.B. Mounted. http://www.trr-jx.com pF nS HER301 THRU HER308 Ultra Fast Rectifiers RATINGS AND CHARACTERISTIC CURVES 3.0 2.0 1.0 http://www.trr-jx.com