Frontier Electronics Corp. 667 E. COCHRAN STREET, SIMI VALLEY, CA 93065 TEL: (805) 522-9998 FAX: (805) 522-9989 E-mail: [email protected] Web: http://www.frontierusa.com 1A FAST RECOVERY PLASTIC RECTIFIER 1N4933-LFR THRU 1N4937-LFR FEATURES z LOW COST z PLASTIC PACKAGE HAS UNDERWRITERS LABORATORY FLAMMABILITY CLASSIFICATION 94V-0 z 1 AMPERE OPERATION AT TA=55°C WITH NO THERMAL RUNAWAY z FAST SWITCHING FOR HIGH EFFICIENCY z EXCEEDS ENVIRONMENTAL STANDARDS OF MIL-STD-19500 z HIGH TEMPERATURE SOLDERING GUARANTEED: 250°C / 10S/0.375” (9.5mm) LEAD LENGTH /5 LBS (2.3KG) TENSION z ROHS 1.0(25.4) MIN .034(0.9) .028(0.7) .205(5.2) .166(4.2) .107(2.7) .080(2.0) MECHANICAL DATA z CASE: JEDEC DO-41, MOLDED CASE, DIMENSIONS IN INCHES AND (MILLIMETERS) z TERMINAL: AXIAL LEADS, SOLDERABLE PER MIL-STD-202, METHOD 208 z POLARITY: COLOR BAND DENOTES CATHODE z MOUNTING POSITION: ANY z WEIGHT: 0.34 GRAMS 1.0(25.4) MIN MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS RATINGS AT 25°C AMBIENT TEMPERATURE UNLESS OTHERWISE SPECIFIED SINGLE PHASE, HALF WAVE, 60 HZ, RESISTIVE OR INDUCTIVE LOAD. FOR CAPACITIVE LOAD, DERATE CURRENT BY 20% 1N4933-LF 1N4934-LF 1N4935-LF 1N4936-LF 1N4937-LF UNITS RATINGS SYMBOL R R R R R MAXIMUM RECURRENT PEAK REVERSE VOLTAGE VRRM 50 100 200 400 600 V MAXIMUM RMS VOLTAGE VRMS 35 70 140 280 420 V MAXIMUM DC BLOCKING VOLTAGE VDC 50 100 200 400 600 V MAXIMUM AVERAGE FORWARD RECTIFIED CURRENT IO 1.0 A 0.375”(9.5mm) LEAD LENGTH AT TA=55°C PEAK FORWARD SURGE CURRENT, 8.3ms SINGLE HALF IFSM 30 A SINE-WAVE SUPERIMPOSED ON RATED LOAD TYPICAL JUNCTION CAPACITANCE (NOTE 1) CJ 15 PF TYPICAL THERMAL RESISTANCE (NOTE 2) Rθja 50 ℃/W STORAGE TEMPERATURE RANGE TSTG - 55 TO + 150 ℃ OPERATING TEMPERATURE RANGE TOP - 55 TO + 150 ℃ ELECTRICAL CHARACTERISTICS (AT TA =25°C UNLESS OTHERWISE NOTED) 1N4933-LF 1N4934-LF 1N4935-LF 1N4936-LF 1N4937-LF CHARACTERISTICS SYMBOL R R R R R MAXIMUM FORWARD VOLTAGE AT IO DC VF 1.2 UNITS V MAXIMUM REVERSE CURRENT AT 25℃ IR 5 μA MAXIMUM REVERSE CURRENT AT 100℃ IR 50 μA MAXIMUM REVERSE RECOVERY TIME (NOTE 2) TRR 120 NOTE: 1. MEASURED AT 1 MHZ AND APPLIED REVERSE VOLTAGE 0F 4.0 VOLTS 2. BOTH LEADS ATTACHED TO HEAT SINK 20x20x1t(mm) COPPER PLATE AT LEAD LENGTH 5mm 3. REVERSE RECOVERY TEST CONDITIONS: IF=0.5A, IR=1.0A, IRR=0.25A 1N4933-LFR THRU 1N4937-LFR nS Page: 1 RATINGS AND CHARACTERISTIC CURVE 1N4933-LFR THRU 1N4937-LFR FIG. 1-TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC 10Ω NO INDUCTIVE 50Ω NO INDUCTIVE Trr +0.5A (-) D.U.T. PULSE GENERATOR ( NOTE 2 ) (+) 25 Vdc (approx) 1Ω NON INDUCTIVE (-) 0 -0.25A OSCILLOSCOPE ( NOTE 1 ) (+) -1.0A NOTE: 1. RISE TIME=7ns MAX. INPUT IMPEDANCE=1 MOhms 22PF 2. RISE TIME =10ns MAX. SOURCE IMPEDANCE=50 OHMS 1cm SET TIME BASE FOR 10/20 ns/cm RESISTIVE OR INDUCTIVE LOAD 0.375”(9.5mm) LEAD LENGTH 1.0 0.8 I(pk) I(AV) Fig. 5-MAXIMUM FORWARD SURGE NUMBER OF CYCLES π = CAPACITIVE LOAD 0.4 I(pk) 0.2 I(AV) 0 0 5 = 10 20 20 40 60 80 100 120 140 160 180 200 TA-AMBIENT TEMPERATURE (OC) FIG. 3-TYPICAL JUNCTION CAPACITANCE 20 CAPACITANCE, pF Tj=25oC 30 TA=75oC 8.3ms SINGLE HALF SINE-WAVE JEDEC METHOD 20 10 1.0 CYCLE 0 1 10 10 100 NUMBER OF CYCLES AT 60 HZ f = 1 MHz Vsig = 50 mVp-p 1 1 FIG. 6-TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS 10 100 REVERSE VOLTAGE, VOLTS FIG. 4-TYPICAL REVERSE CHARACTERISTICS INSTANTANEOUS REVERSE CURRENT, MICRO AMPERES(uA) PEAK FORWARD SURGE CURRENT AMPERES 0.6 100 10 TJ=100oC 1.0 0.1 10 INSTANTANEOUS FORWARD CURRENT, IF(A) Io-AVERAGE RECTIFIED CURRENT (A) Fig. 2-MAXIMUM CURRENT DERATING CURVE 1.0 Tj=25oC PULSE WIDTH =300us 1% DUTY CYCLE 0.1 .01 TJ=25oC .4 .01 .6 .8 1.0 1.2 1.4 1.6 INSTANTANEOUS FORWARD VOLTAGE, (V) 0 20 40 60 80 100 120 140 PERCENT OF RATED PEAK REVERSE VOLTAGE 1N4933-LFR THRU 1N4937-LFR Page: 2