CURRENT 1.0 Ampere VOLTAGE 50 to 600 Volts SM4933 THRU SM4937 Features · The plastic package carries Underwrites Laboratory Flammability Classification 94V-0 · For surface mounted applications · Glass passivated junction · High temperature soldering guaranteed : 250℃/10 seconds, at terminals MELF (DO-41) SOLDERABLE ENDS 0.024(0.60) 0.018(0.46) Mechanical Data 0.105(2.70) 0.095(2.40) 0.205(5.20) 0.190(4.80) · Case : JEDEC MELF(DO-41) molded plastic body · Terminals : Lead solderable per MIL-STD-750, method 2026 · Polarity : Color band denotes cathode end · Mounting Position : Any · Weight : 0.0041 ounce, 0.116 gram Dimensions in inches and (millimeters) Maximum Ratings And Electrical Characteristics (Ratings at 25℃ ambient temperature unless otherwise specified, Single phase, half wave 60Hz, resistive or inductive load. For capacitive load, derate by 20%) Units Symbols SM4933 Maximum recurrent peak reverse voltage VRRM 50 100 200 400 600 Volts Maximum RMS voltage VRMS 35 70 140 280 420 Volts Maximum DC blocking voltage VDC 50 100 200 400 600 Volts Maximum average forward rectified current TA=75℃ I(AV) 1.0 Amp Peak forward surge current 8.3ms half sine wave superimposed on rated load (JEDEC method) IFSM 30 Amps VF 1.2 Volts Maximum instantaneous forward voltage at 1.0A Maximum DC reverse current at rated DC blocking voltage TA=25℃ TA=100℃ Maximum reverse recovery time (Note 3) Typical junction capacitance (Note 1) Typical thermal resistance (Note 2) Operating and storage temperature range IR SM4934 SM4935 5.0 100 SM4936 SM4937 μA trr 150 CJ 15.0 pF RθJA 60 ℃/W TJ -55 to +150 TSTG -55 to +150 Notes: (1) Measured at 1MHz and applied reverse voltage of 4.0V DC. (2) Thermal resistance from junction to ambient. (3) Reverse recovery test conditions : IF=0.5A, IR=1.0A, IRR=0.25A ns ℃ RATINGS AND CHARACTERISTIC CURVES SM4933 THRU SM4937 FIG.1- REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM (+ ) 50Vdc (approx) (-) 10 NONINDUCTIVE (-) DUT NON INDUCTIVE OSCILLOSCOPE (NOTE 1) PULSE GENERATOR ( NOTE 2 ) P.C.B. MONTED ON 0.2X0.2" (5.0X5.0mm)COPPER AREAS PADS 30 25 50 75 100 125 150 O AMBIENT TEMPERATURE. ( C) 175 FIG.3- MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT TA=75OC 8.3ms Single Half Sine Wave JEDEC Method 20 10 1.0 CYCLE 0 20 1 2 4 6 8 10 20 40 6 0 80 10 0 NUMBER OF CYCLES AT 60Hz FIG.4- TYPICAL JUNCTION CAPACITANCE 10 Tj=25 OC f=1 Mhz Vsig=50mVp-p 1 1 10 REVERSE VOLTAGE. (V) SET TIME BASE FOR 5/ 10ns/ cm 20 10 3.0 1.0 0.3 100 Tj=25 OC Pulse Width=300us 1% Duty Cycie 0.1 .03 .01 0.6 INSTANTANEOUS REVERSE CURRENT. (mA) AVERAGE FORWARD RECTIFIED CURRENT AMPERES PEAK FORWARD SURGE CURRENT.AMPERES JUNCTION CAPACITANCE.(pF) .6 0 0 1cm FIG.5- TYPICAL FORWARD CHARACTERISTICS .8 .2 -0.25A -1.0A FIG.2- MAXIMUM FORWARD CURRENT DERATING CURVE .4 0 (+) NOTES: 1. Rise Time=7ns max. Input Impedanec= 1 megohm 22pf 2. Rise Time=10ns max. Sourse Impedance= 50 ohms 1.0 trr +0.5A INSTANTANEOUS FORWARD CURRENT. (A) 50 NONINDUCTIVE 0.8 1.0 1.2 1.4 1.6 1.8 FORWARD VOLTAGE. (V) 2.0 FIG.6- TYPICAL REVERSE CHARACTERISTICS 100 Tj=100 OC 10 1.0 .10 Tj=25 C O 0 20 40 60 80 100 120 140 PERCENT OF RATED PEAK REVERSE VOLTAGE. (%)