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| Shanghai Lunsure Electronic Technology Co.,Ltd Tel:0086-21-37185008 Fax:0086-21-57152769 PF251 THRU PF257 25Amp Fast Recover Rectifier 50 to 1000 Volts PRESSFIT Features * * * * * Low Cost Low Leakage Low Forward Voltage Drop High Current Capability For Automotive Applications * * Maximum Ratings Operating Temperature: -55C to +150C Storage Temperature: -55C to +150C Catalog Number Device Marking PF251 PF252 PF253 PF254 PF255 PF256 PF257 --------------- Maximum Recurrent Peak Reverse Voltage 50V 100V 200V 400V 600V 800V 1000V Maximum RMS Voltage Maximum DC Blocking Voltage A 35V 70V 140V 280V 420V 560V 700V 50V 100V 200V 400V 600V 800V 1000V B C E F Electrical Characteristics @ 25C Unless Otherwise Specified Average Forward IF(AV) 25A TA = 125C Current Peak Forward Surge IFSM 400A 8.3ms, half sine Current Maximum 1.0V IFM = 25A; Instantaneous VF Forward Voltage TJ = 25C* Maximum DC Reverse Current At IR 1 A TJ = 25C Rated DC Blocking 10A TJ = 125C Voltage Typical Junction CJ 65pF Measured at Capacitance 1.0MHz, VR=4.0V *Pulse test: Pulse width 300 sec, Duty cycle 2% D DIM A B C D E E INCHES MIN .097 1.063 -----.501 .122 .258 MAX .103 1.142 .395 .505 .130 .278 MM MIN 2.464 27.00 -----12.73 3.10 6.55 MAX 2.616 29.00 10.04 12.82 3.30 7.05 NOTE www.cnelectr.com PF251 thru PF257 Figure 1 Typical Forward Characteristics 20 30 100 60 40 20 20 25C Amps 10 Amps .6 .4 .2 .1 .06 .04 .02 .01 .4 .6 .8 Volts Instantaneous Forward Current - Amperesversus Instantaneous Forward Voltage - Volts 500 400 300 Amps 200 100 0 1.0 1.2 1.4 10 15 25 Figure 2 Forward Derating Curve 5 Single Phase, Half Wave 60Hz Resistive or Inductive Load 0 0 50 75 100 125 150 175 C Average Forward Rectified Current - Amperes versus Ambient Temperature - C Figure 4 Peak Forward Surge Current 600 1 2 4 6 8 10 Cycles 20 40 00 60 80 100 Peak Forward Surge Current - Amperesversus Number Of Cycles At 60Hz - Cycles Figure 3 Junction Capacitance 100 60 40 20 pF 10 6 4 2 1 .1 .2 .4 1 Volts 2 4 10 20 40 100 200 400 1000 TJ=25C Junction Capacitance - pFversus Reverse Voltage - Volts www.cnelectr.com |
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