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| MCC Features * * * * 1N4942 omponents 21201 Itasca Street Chatsworth !"# $ % !"# THRU 1N4948 1 Amp Fast Recovery Rectifier 200 to 1000 Volts DO-41 Low Leakage Current Metalurgically Bonded Construction Low Cost Fast Switching For High Efficiency * * * Maximum Ratings Operating Temperature: -55C to +150C Storage Temperature: -55C to +150C Maximum Thermal Resistance; 50 C/W Junction To Ambient Microsemi Catalog Number Device Marking Maximum Recurrent Peak Reverse Voltage 200V 400V 600V 800V 1000V Maximum RMS Voltage Maximum DC Blocking Voltage 200V 400V 600V 800V 1000V D 1N4942 1N4944 1N4946 1N4947 1N4948 ----------- 140V 280V 420V 560V 700V A Cathode Mark B Electrical Characteristics @ 25C Unless Otherwise Specified Average Forward Current Peak Forward Surge Current Maximum Instantaneous Forward Voltage Maximum DC Reverse Current At Rated DC Blocking Voltage Maximum Reverse Recovery Time 1N4942-4944 1N4946-4947 1N4948 Typical Junction Capacitance IF(AV) IFSM 1.0A 25A TA =55C 8.3ms, half sine D C VF 1.3V IFM = 1.0A; TA = 25C* TJ = 25C TJ = 175C DIM A B C D INCHES MIN .166 .080 .028 1.000 IR 5.0A 500A DIMENSIONS MM MIN 4.10 2.00 .70 25.40 Trr CJ 150ns 250ns 500ns 15pF IF=0.5A, IR=1.0A, Irr=0.25A Measured at 1.0MHz, VR=4.0V MAX .205 .107 .034 --- MAX 5.20 2.70 .90 --- NOTE *Pulse test: Pulse width 300 sec, Duty cycle 2% www.mccsemi.com 1N4942 thru 1N4948 Figure 1 Typical Forward Characteristics 20 10 6 4 1.0 2 Amps 1 .6 .4 .2 25C .1 .06 .04 .02 .01 .4 .6 .8 Volts Instantaneous Forward Current - Amperesversus Instantaneous Forward Voltage - Volts 1.0 1.2 1.4 0 .2 Single Phase, Half Wave 60Hz Resistive or Inductive Load 0 50 75 100 C Average Forward Rectified Current - Amperes versus Ambient Temperature - C 125 150 175 Amps .4 .8 1.2 Figure 2 Forward Derating Curve .6 Figure 3 Junction Capacitance 100 60 40 20 pF TJ=25C 10 6 4 2 1 .1 .2 .4 1 Volts 2 4 10 20 40 100 200 400 1000 Junction Capacitance - pFversus Reverse Voltage - Volts www.mccsemi.com 1N4942 thru 1N4948 Figure 4 Typical Reverse Characteristics 100 60 40 20 10 6 4 2 Amps 1 .6 .4 .2 .1 .06 .04 .02 .01 20 40 60 80 Volts Instantaneous Reverse Leakage Current - MicroAmperes versus Percent Of Rated Peak Reverse Voltage - Volts Figure 6 Reverse Recovery Time Characteristic And Test Circuit Diagram 50 10 trr +0.5A 100 120 140 TA=25C TA=75C TA=125C Amps 30 25 20 15 10 5 0 1 4 6 8 10 Cycles Peak Forward Surge Current - Amperesversus Number Of Cycles At 60Hz - Cycles 20 40 60 80 100 Figure 5 Non-Repetitive Peak Forward Surge Current 2 0 25Vdc Pulse Generator Note 2 1 Oscilloscope Note 1 -0.25 -1.0 1cm Set Time Base for 20/100ns/cm Notes: 1. Rise Time = 7ns max. Input impedance = 1 megohm, 22pF 2. Rise Time = 10ns max. Source impedance = 50 ohms 3. Resistors are non-inductive www.mccsemi.com |
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