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HER254 Dataheets PDF



Part Number HER254
Manufacturers MIC
Logo MIC
Description HIGH EFFICIENCY RECTIFIER
Datasheet HER254 DatasheetHER254 Datasheet (PDF)

HIGH EFFICIENCY RECTIFIER HER251 THRU HER258 VOLTAGE RANGE CURRENT 50 to 1000 Volts 2.5Ampere 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.

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HIGH EFFICIENCY RECTIFIER HER251 THRU HER258 VOLTAGE RANGE CURRENT 50 to 1000 Volts 2.5Ampere 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 1.0(25.4) MIN. .160(4.1) .138(3.5) 1.0(25.4) MIN. .042(1.1) .038(0.96) DIA. R-3 .160(4.1) DIA. .138(3.5) Dimensions in inches and (millimeters) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS • Ratings at 25OC ambient temperature unless otherwise specified • Single Phase, half wave, 60Hz, resistive or inductive load • For capacitive load derate current by 20% HER HER HER HER SYMBOLS 251 252 253 254 HER 255 Maximum Repetitive Peak Reverse Voltage VRRM 50 100 200 300 400 Maximum RMS Voltage VRMS 35 70 140 210 280 Maximum DC Blocking Voltage Maximum Average Forward Rectified Current 0.375”(9.5mm) lead length at TA= 50℃ Peak Forward Surge Current 8.3mS single half sine wave superimposed on rated load (JEDEC method) VDC 50 100 200 300 400 I(AV) 2.5 IFSM 100 Maximum Instantaneous Forward Voltage @ 2.5A VF 1.0 1.3 Maximum DC Reverse Current at Rated DC Blocking Voltage TA = 25℃ TA = 125℃ IR 5.0 250 Maximum Full Load Recovery Current,full cycle average 0.375”(9.5mm)lead length at TL=55℃ IR(AV) 100 Maximum Reverse Recovery Time Test conditions IF=0.5A,IR=1.0A,IRR=0.25A trr 50 Typical Thermal Resistance (NOTE 2) Typical Thermal Resistance(NOTE 1) CJ RθJA 30 35 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 HER 256 600 420 600 1.5 HER 257 800 560 800 HER 258 1000 700 1000 UNITS Volts Volts Volts Amp Amps 1.7 Volts µA µA 75 ns 35 PF ℃/W ℃ ℃ E-mail: [email protected] Web Site: www.cnmic.com HIGH EFFICIENCY RECTIFIER HER251 THRU HER258 VOLTAGE RANGE CURRENT 50 to 1000 Volts 2.5Ampere RATING AND CHRACTERISTIC CURVES HER251 THRU HER258 AVERAGE FORWARD CURRENT, (A) FIG.1-TYPICAL FORWARD CURRENT DERATING CURVE 3.0 2.0 1.0 0 0 Single Phase Half Wave 60Hz Resistive or Inductive Load 0.375"(9.5mm)Lead Length 25 50 75 100 125 150 AMBIENT TEMPERATURE, (° C) 175 PEAK FORWARD SURGE CURRENT, (A) FIG.2-MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT 150 8.3ms Single Half Sine-Wave (JEDEC Method) Tj=Tjmax 100 50 1 Cycle 01 2 4 6 8 10 20 40 60 NUMBER OF CYCLES AT 60 Hz 100 INSTANTANEOUS FORWARD CURRENT, (A) 50/ 100/ 200V 300/ 400V 600 V 800V 1000V FIG.3-TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS 100 10 1.0 Tj =25° C Pulse Width=300us 1% Duty Cycle 0.01 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 INSTANTANEOUS FORWARD VOLTAGE,(V) FIG.5-TYPICAL JUNCTION CAPACITANCE 100 HER251-HER255 HER256-HER258 10 TJ=25° C F=1MHz Vsig =5 0m Vp-p 1 0.1 1.0 10 REVERSE VOLTAGE,(V) 100 INSTANTANEOUS REVERSE CURRENT, (UA) FIG.4-TYPICAL REVERSE CHARACTERISTICS 100 10 1.0 0.1 0 Tj =125° C Tj =25° C 20 40 60 80 100 120 PERCENT OF RATED PEAK REVERSE VOLTAGE,(%) 140 FIG.6-TEST CIRCUIT DIAGRAM AND REVERSE REXOVERY TIME CHARACTERISTIC 50Ω NONINDUCTIVE 10Ω NONINDUCTIVE (+) 25 Vdc (approx) (-) D.U.T 1Ω NON INDUCTIVE (-) PULSE GENERATIOR (NOTE 2) OSCILLOSCOPE (NOTE 1) +0.5A 0 0.25A -1.0A NOTE: 1.Rise Time =7ns max.Input Impedance=1megohm.22pF 2.Rise time=10ns max.Source Impedance=50 ohms Trr 1cm SET TIME BASE FOR 50 /100NS /cm JUNCTION CAPACITANCE,(pF) E-mail: [email protected] Web Site: www.cnmic.com .


HER253 HER254 HER255


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