FR256

FAST RECOVER RECTIFIER FR251 THRU FR257 FEATURES • • • • • VOLTAGE RANGE CURRENT 50 to 1000 Volts 2 .5Ampere 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 R-3 .042(1.1) DIA. .038(0.96) 1.0(25.4) MIN. .160(4.1) .138(3.5) .160(4.1) .138(3.5) DIA. 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: 0.042ounce, 1.19 grams 1.0(25.4) MIN. 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% SYMBOLS Maximum Repetitive Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current 0.375”(9.5mm) lead length at T A= 75℃ Peak Forward Surge Current 8.3mS single half sine wave superimposed on rated load (JEDEC method) Maximum Instantaneous Forward Voltage @ 2.5A Maximum DC Reverse Current at Rated DC Blocking Voltage T A = 25℃ TA = 100℃ VRRM VRMS VDC I(AV) IFSM VF IR trr CJ RθJA TJ TSTG FR 251 50 35 50 FR 252 100 70 100 FR 253 200 140 200 FR 254 400 280 400 2.5 100 1.3 5.0 500 FR 255 600 420 600 FR 256 800 560 800 FR 257 1000 700 1000 UNITS Volts Volts Volts Amp Amps Volts µA Maximum Reverse Recovery Time (Note 3) T J=25℃ Typical Junction Capacitance (Note 1) Typical Thermal Resistance (Note 2) Operating Junction Temperature Range Storage Temperature Range 150 60 30 (-55 to +150) (-55 to +150) 250 500 ns pF ℃/W ℃ ℃ Notes: 1.Measured at 1.0MHz and Applied Reverse Voltage of 4.0Volits. 2 Thermal Resistance from junction to Ambient at .375”(9.5mm)lead length, P.C.board mounted. 3.Reverse Recovery Test Conditions:If=0.5mA,Ir=1.0mA,Irr=0.25A Web Site: WWW.PS-PFS.COM FAST RECOVER RECTIFIER FR251 THRU FR257 VOLTAGE RANGE CURRENT 50 to 1000 Volts 2 .5Ampere RATING AND CHRACTERISTIC CURVES FR251 THRU FR257 FIG.2-MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT 200 8.3ms Single Half Sine-Wave (JEDEC Method) Tj=Tjmax FIG.1-TYPICAL FORWARD CURRENT DERATING CURVE 3.0 AVERAGE FORWARD CURRENT, PEAK FORWARD SURGE 100 80 2.0 CURRENT, (A) 60 (A) 40 1.0 Single Phase Half Wave 60Hz Resistive or Inductive Load 0.375"(9.5mm)Lead Length 20 0 0 25 50 75 100 125 150 175 10 1 2 4 6 8 10 20 40 60 80 100 AMBIENT TEMPERATURE, ( ° C) NUMBER OF CYCLES AT 60 Hz FIG.3-TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS INSTANTANEOUS FORWARD CURRENT, 20 FIG.4-TYPICAL REVERSE CHARACTERISTICS 10 10 INSTANTANEOUS REVERSE CURRENT, Tj =100° C 1.0 (A) 1.0 Tj =25° C Pulse Width=300us 1% Duty Cycle 0.1 (uA) 0.1 Tj =25° C 0.01 0 20 40 60 80 100 120 140 0.01 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 INSTANTANEOUS FORWARD VOLTAGE,(V) PERCENT OF RATED PEAK REVERSE VOLTAGE,(%) FIG.5-TYPICAL JUNCTION CAPACITANCE FIG.6-TEST CIRCUIT DIAGRAM AND REVERSE REXOVERY TIME CHARACTERISTIC 100 80 60 +0.5A JUNCTION CAPACITANCE,(pF) 40 50Ω NONINDUCTIVE 10Ω NONINDUCTIVE 20 (+) 25 Vdc （approx） (-) (-) 0 0.25A D.U.T 10 8 6 4 TJ=25° C F=1MHz 2 Vsig=50mVp-p PULSE GENERATIOR (NOTE 2) 1Ω N ON INDUCTIVE OSCILLOSCOPE (NOTE 1) -1.0A NOTE: 1.Rise Time =7ns max.Input Impedance=1megohm.22pF 2.Rise time=10ns max.Source Impedance=50 ohms SET TIME BASE FOR 50 /100NS /cm 1 0.1 1.0 10 100 REVERSE VOLTAGE,(V) Web Site: WWW.PS-PFS.COM