FR251 THRU FR257 R FAST RECOVERY RECTIFIER Reverse Voltage: 50 to 1000 Volts Forward Current:2.5Amperes S E M I C O N D U C T O R DO-15 FEATURES JF Low leakage Low forward voltage drop 1.0(25.4) MIN High current capability High current surge 0.144(3.6) 0.104(2.6) DIA High reliability High temperature soldering guaranteed:260°C/10 seconds at terminals Component in accordance to RoHS 2002/95/EC and WEEE 2002/96/EC 0.300(7.60) 0.230(5.60) MECHANICAL DATA Case: JEDEC DO-15 molded plastic body Terminals: Plated axial leads, solderable per MIL-STD-750,Method 2026 1.0(25.4) MIN 0.036(0.90) 0.028(0.70) DIA Polarity: Color band denotes cathode end Mounting Position: Any Weight: 0.03 ounce, 0.54 gram Dimensions in inches and (millimetrers) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS (Rating at 25°C ambient temperature unless otherwise specified.Single phase ,half wave ,60HZ,resistive or inductive load. For capacitive load,derate current by 20%.) Symbols FR 251 FR 252 FR 253 FR 254 FR 255 FR 256 FR 257 50 100 200 400 600 800 1000 35 70 140 280 420 560 700 50 100 200 400 600 800 1000 Units Volts Volts Volts Maximum DC Blocking Voltage VRRM VRMS VDC Maximum Average Forward Rectified Current 0.375"(9.5mm)lead length at TA=75°C I(AV) 2.5 Amps Peak Forward Surge Current ,8.3ms single half sine-wave IFSM 150 Amps VF 1.3 Volts Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum Instantaneous Forward Voltage at 2.5 A Maximum DC Reverse Current at rated DC blocking voltage TA=25°C 10 IR Maximum reverse recovery time(Note1) Typical junction capacitance(Note2) Operating junction and storage temperature range A 150 TA=100°C trr CJ 150 250 60 TJ TSTG 500 30 -65 to+175 ns P F pF C Note: 1.Test conditions: IF=0.5A,IR=1.0A,IRR=0.25A. 2.Measured at 1MHZ and applied reverse voltage of 4.0 Volts D.C. JINAN JINGHENG ELECTRONICS CO., LTD. 7-14 HTTP://WWW.JINGHENGGROUP.COM RATINGS AND CHARACTERISTIC CURVES FR251 THRU FR257 FIG.2-MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT 2.5 PEAK FORWARD SURGE CURRENT(AMPERES) AVERAGE FORWARD CURRENT (A) FIG.1-TYPICAL FORWARD CURRENT DERATING CURVE 2.0 1.5 1.0 SINGIE PHASE HAIF WAVE 60HZ RESISTIVE OR INDUCTIVE LOAD 0.5 0 0 25 50 75 100 125 150 175 AMBIENT TEMPERATURE (°C) FIG.3-TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS 150 8.3ms SINGLE HALF SINE-WAVE 125 (JEDEC Method) 100 75 50 25 0 1 2 4 6 8 10 20 40 60 100 NUMBER OF CYCLES AT 60Hz FIG.4-TYPICAL JUNCTION CAPACITANCE 10 3 JUNCTION CAPACITANCE(pF) INSTANTANEOUS FORWARD CURRENT( AMPERES) 20 1 0.3 0.1 TJ=25°C Pulse Width=300µs 0.03 1% Duty Cycle 200 100 60 40 TJ=25 C 20 10 6 4 2 0.01 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1 1.8 0.1 0.2 0.4 INSTANTANEOUS FORWARD VOLTAGE (VOLTS) 1 2 4 10 20 REVERSE VOLTAGE. (V) FIG.5-TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC NONINDUCTIVE NONINDUCTIVE trr +0.5A (＋) D.U.T. 0 PULSE GENERATOR (NOTE2) 50Vdc -0.25A (ADJUSTABLE) (－) 1 NONINDUCTIVE OSCILLOSCOPE (NOTE1) -1.0A 1cm SET TIME BASE FOR 50/100 ns/cm NOTES:1.Rise Time=7ns max. input lmpedance=1 megohm 22pF 2.Rise Time=10ns max. source lmpedance= 50 ohms JINAN JINGHENG ELECTRONICS CO., LTD. 7-15 HTTP://WWW.JINGHENGGROUP.COM 40 100