LL4933G-LL4937G 1.0AMP. Surface Mount Glass Plassivated Silicon Rectifiers 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: o 260 C / 10 seconds at terminals. Mechanical Data Mounting position: Any Weight: 0.12 gram Dimensions in inches and (millimeters) Maximum Ratings and Electrical Characteristics Rating at 25 oC ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20% Type Number Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current o @TA = 75 C 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 oC at Rated DC Blocking Voltage @ TA=125 oC Maximum Reverse Recovery Time(Note 3) Typical Junction Capacitance ( Note 1 ) Typical Thermal Resistance (Note 2) Symbol VRRM VRMS VDC LL 4933G 50 35 50 LL 4934G 100 70 100 LL 4935G 200 140 200 LL 4936G 400 280 400 LL Units 4937G 600 420 600 I(AV) 1.0 A IFSM 30 A VF 1.2 V 5 100 150 15 60 - 65 to + 150 uA uA nS pF IR Trr Cj RθJC Operating and Storage Temperature Range TJ,TSTG 1. Measured at 1 MHz and Applied Reverse Voltage of 4.0 Volts D.C. Notes: 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 http://www.luguang.cn V V V mail:[email protected] o C/W o C LL4933G-LL4937G 1.0AMP. Surface Mount Glass Plassivated Silicon Rectifiers RATINGS AND CHARACTERISTIC CURVES (LL4933G THRU LL4937G) FIG.1- MAXIMUM FORWARD CURRENT DERATING CURVE 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 o PEAK FORWARD SURGE CURRENT AMPERES FIG.3- MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT INSTANTANEOUS FORWARD CURRENT. (A) 10 AMBIENT TEMPERATURE. ( C) 30 3 1 0.3 0.1 0.03 Tj=25oC Pulse Width=300 s 1% Duty Cycle 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.5- TYPICAL REVERSE CHARACTERISTICS 10 1000 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) FIG.2- TYPICAL FORWARD CHARACTERISTICS 10 Tj=25 0C INSTANTANEOUS REVERSE CURRENT. (mA) AVERAGE FORWARD RECTIFIED CURRENT AMPERES 1.0 TJ=125 0C 100 TJ=75 0C 10 TJ=25 0C f=1 MHz Vsig=50mVp-p 1 1 0 1 10 REVERSE VOLTAGE. (V) 100 20 40 60 80 100 120 FIG.6- REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM 50 NONINDUCTIVE 10 NONINDUCTIVE trr +0.5A (-) DUT (+) 50Vdc (approx) (-) PULSE GENERATOR (NOTE 2) NON INDUCTIVE OSCILLOSCOPE (NOTE 1) NOTES: 1. Rise Time=7ns max. Input Impedance= 1 megohm 22pf 2. Rise Time=10ns max. Sourse Impedance= 50 ohms http://www.luguang.cn 140 PERCENT OF RATED PEAK REVERSE VOLTAGE. (%) 0 -0.25A (+) -1.0A 1cm SET TIME BASE FOR 5/ 10ns/ cm mail:[email protected]