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FR254 Dataheets PDF



Part Number FR254
Manufacturers GALAXY ELECTRICAL
Logo GALAXY ELECTRICAL
Description FAST RECOVERY RECTIFIER
Datasheet FR254 DatasheetFR254 Datasheet (PDF)

BL GALAXY ELECTRICAL FAST RECOVERY RECTIFIER FR251---FR257 VOLTAGE RANGE: 50 --- 1000 V CURRENT: 2.5 A FEATURES Low cost Diffused junction Low leakage Low forward voltage drop High current capability Easily cleaned with Freon,Alcohol,Isopropanol and similar solvents The plastic material carries U/L recognition 94V-0 MECHANICAL DATA Case:JEDEC R--3,molded plastic Terminals: Axial lead ,solderable per MIL- STD-202,Method 208 Polarity: Color band denotes cathode Weight:0.021 unces,0.58 grams Moun.

  FR254   FR254


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BL GALAXY ELECTRICAL FAST RECOVERY RECTIFIER FR251---FR257 VOLTAGE RANGE: 50 --- 1000 V CURRENT: 2.5 A FEATURES Low cost Diffused junction Low leakage Low forward voltage drop High current capability Easily cleaned with Freon,Alcohol,Isopropanol and similar solvents The plastic material carries U/L recognition 94V-0 MECHANICAL DATA Case:JEDEC R--3,molded plastic Terminals: Axial lead ,solderable per MIL- STD-202,Method 208 Polarity: Color band denotes cathode Weight:0.021 unces,0.58 grams Mounting position: Any R-3 MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25 ambient temperature unless otherwise specified. Single phase,half wave,60 Hz,resistive or inductive load. For capacitive load,derate by 20%. FR 251 Maximum recurrent peak reverse voltage Maximum RMS voltage Maximum DC blocking voltage Maximum average forw ard rectified current 9.5mm lead length, @TA=75 Peak forw ard surge current VRRM VRMS VDC IF(AV) 50 35 50 8.3ms single half-sine-w ave superimposed on rated load @TJ=125 Maximum instantaneous forw ard voltage @ 2.5 A IFSM VF Maximum reverse current @TA=25 at rated DC blocking voltage @TA=100 IR Maximum reverse recovery time (Note1) trr Typical junction capacitance (Note2) CJ Typical thermal resistance (Note3) RθJA Operating junction temperature range TJ Storage temperature range TSTG NOTE:1. Measured with IF=0.5A, IR=1A, Irr=0.25A. 2. Measured at 1.0MHz and applied rev erse v oltage of 4.0V DC. 3. Thermal resistance f rom junction to ambient. FR 252 FR 253 FR 254 FR 255 FR 256 FR 257 UNITS 100 200 400 600 800 1000 V 70 140 280 420 560 700 V 100 200 400 600 800 1000 V 2.5 A 150.0 1.3 5.0 100.0 150 250 22 35 - 55---- +150 - 55---- + 150 A V A 500 ns pF www.galaxycn.com Document Number 0261005 BLGALAXY ELECTRICAL 1. RATINGSANDCHARACTERISTICCURVES FIG.1 -- TYPICAL FORWARD DERATINGCURVE FR251---FR257 FIG.2-- FORWARDSURGECURRENT PEAK FORWARD SURGE CURRENT AMPERES AVERAGE FORWARD CURRENT AMPERES 2.5 2.0 1.5 1.0 Single Phase 0.5 Half Wave 60HZ Resistive or Inductive Load 0 0 2 5 50 75 100 125 150 175 150 125 100 75 50 25 0 12 TJ=125 8.3ms Single Half Sine-Wave 4 6 8 10 20 40 60 1 0 0 AMBIENTTEMPERATURE, FIG.3--TYPICAL JUNCTIONCAPACITANCE NUMBEROF CYCLES AT60 Hz FIG.4 --TYPICAL FORWARDCHARACTERISTIC INSTANTANEOUS FORWARD CURRENT AMPERES JUNCTION CAPACITANCE,pF 100 60 40 20 10 4 TJ=25 f=1MHz 2 1 .1 .2 .4 1.0 2 4 10 20 40 100 100 10 TJ=25 Pulse Width=300µS 4 2 1.0 0.4 0.2 0.1 0.06 0.04 0.02 0.01 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 REVERSE VOLTAGE,VOLTS INSTANTANEOUS FORWARDVOLTAGE,VOLTS FIG.5 -- REVERSERECOVERYTIME CHARACTERISTICANDTEST CIRCUIT DIAGRAM 50 10 N.1. N.1. +0.5A trr (+) 50VDC (APPROX) (-) D.U.T. 1 N.1. OSCILLOSCOPE (NOTE 1) (-) PULSE GENERATOR (NOTE2) (+) 0 -0.25A -1.0A NOTES:1.RISETIME=7ns MAX. INPUTIMPEDANCE=1M .22pF 2.RISETIME=10ns MAX. SOURCEIMPEDANCE=5O SETTIMEBASEFOR50/100 ns /cm Document Number 0261005 BLGALAXY ELECTRICAL 1cm www.galaxycn.com 2. .


FR253 FR254 FR255


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