BL GALAXY ELECTRICAL 1N4933G---1N4937G VOLTAGE RANGE: 50 --- 600 V CURRENT: 1.0 A GLASS PASSIVATED JUNCTION FEATURES Low cost DO - 41 Glass passivated junction Low leakage Low forward voltage drop High current capability Easily cleaned with Freon,Alcohil,Isopropanop and similar solvents The plastic material carries U/L recognition 94V-0 MECHANICAL DATA Case:JEDEC DO-41,molded plastic Terminals: Axial lead ,solderable per MIL- STD-202,Method 208 Polarity: Color band denotes cathode Weight: 0.34 grams Mounting position: Any MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25 ambient temperature unless otherwise specified. Single phase,half wave,60 Hz,resistive or inductive load. For capacitive load,derate by 20%. 1N 4933G 1N 4934G 1N 4935G 1N 4936G 1N 4937G UNITS 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 forw ard rectified current 9.5mm lead length, @TA=75 IF(AV) 1.0 A IFSM 30.0 A VF 1.3 V Peak forw ard surge current 8.3ms single half-sine-w ave superimposed on rated load @TJ =125 Maximum instantaneous forw ard voltage @1.0 A Maximum reverse current at rated DC blocking voltage @TA=25 5.0 IR @TA=100 100.0 A Maximym reverse capacitance (Note1) trr 200 ns Typical junction capacitance (Note2) CJ 12.0 pF Typical thermal resistance (Note3) RθJA 22.0 TJ - 55---- +175 TSTG - 55---- + 175 Operating junction temperature range Storage temperature range NOTE: 1. Measured with I F =0.5A I R=1A I rr=0.25A. /W www.galaxycn.com 2. Measured at 1.0MHz and applied rev erse v oltage of 4.0V DC. 3. Thermal resistance f rom junction to ambient. Document Number 0269004 BLGALAXY ELECTRICAL 1. RATINGS AND CHARACTERISTIC CURVES 1N4933G---1N4937G FIG.1 -- TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC trr 10 N.1. 50 N.1. +0.5A D.U.T. (+) 50VDC (APPROX) (-) ( - ) OSCILLOSCOPE (NOTE 1) 1 N.1. 0 PULSE GENERATOR (NOTE2) -0.25A ( + ) -1.0A NOTES:1.RISETIME= 7ns MAX. INPUT IMPEDANCE= 1M . 22PF 2.RISETIME= 10ns MAX. SOURCEIMPEDANCE= 50 SET TIMEBASEFOR50/100 ns /cm 1.0 Single Phase Half Wave 50H Z Resistive or Inductive Load 0.8 0.6 0.4 0.2 0 0 25 50 75 100 125 150 175 FIG.3 --PEAK FORWARD SURGE CURRENT PEAK FORWARD SURGE CURRENT AMPERES AVERAGE FORWARD OUTPUT CURRENT AMPERES FIG.2 --FORWARD CURRENT DERATING CURVE 24 TJ=25 8.3ms Single Half Sine-Wave 18 12 6 0 1 2 LEAD TEMPERATURE, 6 20 10 40 60 100 FIG.4--TYPICAL JUNCTION CAPACITANCE 10 1.0 TJ =25 PULSE WIDTH=300 s 0.1 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 JUNCTION CAPACITANCE,pF 20 20 0.01 4 NUMBER OF CYCLES AT 60 Hz FIG.4--TYPICAL FORWARD CHARACTERISTIC FORWARD CURRENT AMPERES 30 16 14 12 10 4 TJ=25 f=1MHz 2 1 .1 FORWARD VOLTAGE,VOLTS .2 .4 1.0 2 4 10 20 40 100 REVERSE VOLTAGE,VOLTS www.galaxycn.com Document Number 0269004 BLGALAXY ELECTRICAL 2.