HIGH EFFICIENCY GLASS PASSIVATED RECTIFIER HER251G THRU HER258G VOLTAGE RANGE 50 to 1000 Volts CURRENT 2.5 Ampere FEATURES • • • • • • R-3 Glass passivated chip junction Low power loss, high efficiency Low leakage High speed switching High surge capacity High temperature soldering guaranteed 260℃/10 seconds,0.375″(9.5mm) lead length MECHANICAL DATA • • • • • • Case: Transfer molded plastic Epoxy: UL94V-0 rate flame retardant Polarity: Color band denotes cathode end Lead: Plated axial lead, solderable per MIL-STD-202E method 208C Mounting position: Any Weight: 0.020ounce, 0.56 gram Dimensions in inches and (millimeters) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS • • • Ratings at 25℃ ambient temperature unless otherwise specified Single Phase, half wave, 60Hz, resistive or inductive load For capacitive load derate current by 20% HER HER SYMBOLS 251G 252G Maximum Repetitive Peak Reverse Voltage VRRM 50 100 Maximum RMS Voltage VRMS 35 70 Maximum DC Blocking Voltage VDC 50 100 Maximum Average Forward Rectified Current at TA =50℃ Peak Forward Surge Current 8.3ms single half sine-wave superimposed on rated load (JEDEC method) Storage Temperature Range HER 257G 800 560 800 HER 258G 1000 700 1000 UNIT Volts Volts Volts IFSM 100 Amps IR Operating Junction Temperature Range HER 256G 600 420 600 Amps Maximum DC Reverse Current at rated TA = 25℃ DC Blocking Voltage at TA = 125℃ Typical Thermal Resistance (NOTE 1) HER 255G 400 280 400 2.5 VF Typical Junction Capacitance (NOTE 2) HER 254G 300 210 300 I(AV) Maximum Instantaneous Forward Voltage at 2.5A Maximum Full Load Reverse Current, full cycle average 0.375″(9.5mm) lead length at TL =55℃ Maximum Reverse Recovery Time Test conditions IF =0.5A, IR =1.0A, IRR =0.25A, HER 253G 200 140 200 1.0 1.3 5.0 250 IR(AV) trr CJ RθJA TJ TSTG 1.7 50 µA 75 30 nS 35 35 (-55 to +150) (-55 to +150) Volts µA 100 Notes: 1. Thermal Resistance from Junction to ambient with 0.375″(9.5mm) lead length, PCB mounted. 2. Measured at 1.0MHz and applied reverse voltage of 4.0V Web Site: www.hkmic.com 1.5 pF ℃/W ℃ ℃ HIGH EFFICIENCY GLASS PASSIVATED RECTIFIER HER251G THRU HER258G VOLTAGE RANGE 50 to 1000 Volts CURRENT 2.5 Ampere RATING AND CHRACTERISTIC CURVES HER251G THRU HER258G FIG.2-MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT PEAK FORWARD SURGE 3.0 1.0 Single Phase Half Wave 60Hz Resistive or Inductive Load 0.375″(9.5mm) Lead Length 150 CURRENT, (A) 2.0 (A) AVERAGE FORWARD CURRENT, FIG.1-TYPICAL FORWARD CURRENT DERATING CURVE 8.3ms Single Half Sine-Wave (JEDEC Method) T= T jmax 100 50 1 Cycle 0 0 100 75 50 25 175 150 125 0 1 AMBIENT TEMPERATURE, (° C) 2 4 6 8 10 40 20 60 100 NUMBER OF CYCLES AT 60 Hz FIG.3-TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS FIG.4-TYPICAL REVERSE CHARACTERISTICS 60 0V 80 0V -1 00 0V 0.1 0.01 TJ =25° C Pulse Width=300us 1% Duty Cycle 0.001 0.4 0.6 0.8 1.0 1.2 1.4 1.6 100 10 (μA) INSTANTANEOUS REVERSE CURRENT, 00V 0V 0 0 /2 5 0 /1 30 0/4 0 1.0 (A) INSTANTANEOUS FORWARD CURRENT, 10 TJ =125° C 1.0 TJ=25° C 0.1 1.8 0 INSTANTANEOUS FORWARD VOLTAGE,(V) 40 20 60 80 100 120 140 PERCENT OF RATED PEAK REVERSE VOLTAGE,(%) FIG.5-TYPICAL JUNCTION CAPACITANCE JUNCTION CAPACITANCE,(pF) 100 HE HE R2 R2 51G 56 -HE G -H F1G.6-TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC R2 ER 25 5 5G Trr 50Ω 10Ω NONINDUCTIVE NONINDUCTIVE (-) 8G 10 (+) 25 Vdc (approx.) (-) T J =25° C f=1MHz Vsig=50mVp-p 1.0 D.U.T. 1Ω NON INDUCTIVE PULSE GENERATIOR (NOTE 2) 0 -0.25A (+) OSCILLOSCOPE (NOTE 1) -1.0A 1cm 1 0.1 +0.5A 10 REVERSE VOLTAGE,(V) 100 NOTES : 1.Rise Time=7ns mas. Input Impedance= 1 magohm. 22pF 2.Rise time=10ns max. Source Impedance= 50 ohms Web Site: www.hkmic.com SET TIME BASE FOR 50/100ns/cm