HER301 THRU HER308 3.0AMPS. HIGH EFFICIENCY PLASTIC RECTIFIERS DO-27/DO-201AD FEATURE .Low leakage .Low forward voltage drop .High current capability .High surge capability .High reliability .High temperature soldering guaranteed 260°C /10sec / 0.375" lead length at 5 lbs tension 0.96(24.4) M IN. .220(5.6) DIA. .187(5.0) + .375(9.5) .335(8.5) MECHANICAL DATA .Terminal: Plated axial leads solderable per MIL-STD 202E, method 208C .Case: Molded with UL-94 Class V-0 recognized Flame Retardant Epoxy .Polarity: color band denotes cathode .Mounting position: any - 0.96(24.4) M IN. .051(1.3) DIA. .043(1.1) Dimensions in inches and (millimeters) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25°C ambient temperature unless otherwise specified. Single phase, half wave, 60Hz,resistive or inductive load. For capacitive load, derate current by 20% Type Number SYMBOL HER HER HER HER HER HER HER HER 301 302 303 304 305 306 307 308 units Maximum Recurrent Peak Reverse Voltage VRRM 50 100 200 300 400 600 800 1000 V Maximum RMS Voltage VRMS 35 70 140 210 280 420 560 700 V Maximum DC blocking Voltage VDC 50 100 200 300 400 600 800 1000 V Maximum Average Forward Rectified Current .375"(9.5mm) lead length at TA =55°C IF(AV) 3.0 A IFSM 90 A 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 DC Reverse Current at rated DC blocking voltage @TA =25°C @TA =100°C VF 1.0 1.3 1.7 5.0 IR V µA 100.0 Maximum Reverse Recovery Time (Note 1) trr 50 75 ns Typical Junction Capacitance (Note 2) CJ 80 50 pF Typical Thermal Resistance (Note 3) R(JA) 50 °C/W Storage Temperature TSTG -55 to +150 °C TJ -55 to +150 °C Operation Junction Temperature Note: 1. Test Conditions: IF=0.5A, IR=1.0A, IRR=0.25A 2. Measured at 1.0 MHz and applied reverse voltage of 4.0Vdc 3. Thermal Resistance from Junction to Ambient at 0.375"（9.5mm）lead length, vertical P.C. Board Mounted. - 171 -