LL4933G THRU LL4937G 1.0 AMP Surface Mount Glass Passivated Silicon Rectifiers Voltage Range 50 to 600 Volts Current 1.0 Ampere MELF Features Plastic package has carries underwriters laboratory flammability classification 94V-0. Surge overload rating to 30 amperes peak Ideal for printed circuit board Reliable low cost construction utilizing molded plastic technique results in inexpensive product High temperature soldering guaranteed: 260OC / 10 seconds at terminals. Mechanical Data Solderability per MIL-STD-750, method 208 at terminals. Mounting position: Any Weight: 0.12 gram Dimensions in inches and (millimeters) Maximum Ratings and Electrical Characteristics Rating at 25℃ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20% Symbol LL LL Type Number 4933G 4934G Maximum Recurrent Peak Reverse Voltage 50 100 VRRM Maximum RMS Voltage 35 70 VRMS Maximum DC Blocking Voltage 50 100 VDC Maximum Average Forward Rectified Current @TA = 75℃ Peak Forward Surge Current, 8.3 ms Single Half Sine-wave Superimposed on Rated Load (JEDEC method ) Maximum Instantaneous Forward Voltage @1.0A Maximum DC Reverse Current @ TA=25℃ at Rated DC Blocking Voltage @ TA=100℃ LL 4935G LL 4936G 200 140 200 400 280 400 LL Units 4937G 600 420 600 V V V I(AV) 1.0 A IFSM 30 A VF 1.2 V 5 uA uA 100 Maximum Reverse Recovery Time(Note 3) Trr 150 nS Typical Junction Capacitance ( Note 1 ) Cj 15 pF Typical Thermal Resistance (Note 2) ℃/W RθJC 60 Operating and Storage Temperature Range TJ,TSTG ℃ - 65 to + 150 Notes: 1. Measured at 1 MHz and Applied Reverse Voltage of 4.0 Volts D.C. 2. Thermal Resistance from Junction to case. Mount on 0.2” x 0.2” Cu-pad on P.C.B. 3. Reverse Recovery Test Conditions: IF=0.5A, IR=1.0A, IRR=0.25A IR - 478 - RATINGS AND CHARACTERISTIC CURVES (LL4933G THRU LL4937G) FIG.1- REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM 10W NONINDUCTIVE 50W NONINDUCTIVE trr +0.5A (-) DUT (+) 50Vdc (approx) (-) PULSE GENERATOR (NOTE 2) 1W NON INDUCTIVE OSCILLOSCOPE (NOTE 1) (+) -1.0A NOTES: 1. Rise Time=7ns max. Input Impedance= 1 megohm 22pf 2. Rise Time=10ns max. Sourse Impedance= 50 ohms 20 0.8 0.6 0.4 P.C.B. MONTED ON 0.2X0.2" (5.0X5.0mm)COPPER AREAS PADS 0.2 0 0 25 50 75 100 125 150 175 PEAK FORWARD SURGE CURRENT AMPERES AMBIENT TEMPERATURE. ( C) FIG.3- MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT INSTANTANEOUS FORWARD CURRENT. (A) 10 o 30 3 1 0.3 Tj=25oC Pulse Width=300 s 1% Duty Cycle 0.1 0.03 0 TJ=75 C 8.3ms Single Half Sine Wave JEDEC Method 0.01 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 20 FORWARD VOLTAGE. (V) FIG.6- TYPICAL REVERSE CHARACTERISTICS 10 100 1.0 CYCLE 0 1 2 4 6 8 10 20 40 60 80 100 NUMBER OF CYCLES AT 60Hz FIG.4- TYPICAL JUNCTION CAPACITANCE 20 JUNCTION CAPACITANCE.(pF) SET TIME BASE FOR 5/ 10ns/ cm FIG.5- TYPICAL FORWARD CHARACTERISTICS 10 Tj=25 0C f=1 MHz Vsig=50mVp-p INSTANTANEOUS REVERSE CURRENT. (mA) AVERAGE FORWARD RECTIFIED CURRENT AMPERES 1cm FIG.2- MAXIMUM FORWARD CURRENT DERATING CURVE 1.0 0 -0.25A TJ=100 0C 10 1 TJ=25 0C 0.1 1 0 1 10 REVERSE VOLTAGE. (V) 100 - 479 - 20 40 60 80 100 120 PERCENT OF RATED PEAK REVERSE VOLTAGE. (%) 140