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HER251 Datasheet(PDF) 1 Page - Shenzhen Ping Sheng Electronics Co., Ltd. |
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HER251 Datasheet(HTML) 1 Page - Shenzhen Ping Sheng Electronics Co., Ltd. |
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1 / 2 page  7 HIGH EFFICIENCY RECTIFIER VOLTAGE RANGE 50 to 1000 Volts HER251 THRU HER25 CURRENT 2.5Ampere Web Site: FEATURES • Low coat construction • Fast switching for high efficency. • Low reverse leakage • High forward surge current capability • High temperature soldering guaranteed: 260℃/10 secods/.375”(9.5mm)lead length at 5 lbs(2.3kg) tension MECHANICAL DATA • Case: Transfer molded plastic • Epoxy: UL94V-O 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 grams MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS • Ratings at 25 OC ambient temperature unless otherwise specified • Single Phase, half wave, 60Hz, resistive or inductive load • For capacitive load derate current by 20% SYMBOLS HER 251 HER 252 HER 253 HER 254 HER 255 HER 256 HER 257 HER 258 UNITS Maximum Repetitive 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 0.375”(9.5mm) lead length at TA= 50℃ I(AV) 2.5 Amp Peak Forward Surge Current 8.3mS single half sine wave superimposed on rated load (JEDEC method) IFSM 100 Amps Maximum Instantaneous Forward Voltage @ 2.5A VF 1.0 1.3 1.5 1.7 Volts TA = 25℃ 5.0 Maximum DC Reverse Current at Rated DC Blocking Voltage TA = 125℃ IR 250 µA Maximum Full Load Recovery Current,full cycle average 0.375”(9.5mm)lead length at TL=55℃ IR(AV) 100 µA Maximum Reverse Recovery Time Test conditions IF=0.5A,IR=1.0A,IRR=0.25A trr 50 75 ns Typical Thermal Resistance (NOTE 2) CJ 30 35 PF Typical Thermal Resistance(NOTE 1) RθJA 35 ℃ /W Operating Junction Temperature Range TJ (-55 to +150) ℃ Storage Temperature Range TSTG (-55 to +150) ℃ Notes: 1 Thermal resistance from junction to ambient with .375”(9.5mm)lead length, PCB. mounted. . 2. Measured at 1.0 MHz and applied reverse of 4.0 V R-3 DIA. .042(1.1) .038(0.96) DIA. .160(4.1) .138(3.5) .160(4.1) .138(3.5) 1.0(25.4) MIN. 1.0(25.4) MIN. Dimensions in inches and (millimeters) WWW.PS-PFS.COM |
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