LL42/LL43 Small Signal Schottky Diodes VOLTAGE : 30 V MINI-MELF Features For general purpose applications ◇ These diodes feature very low turn-on voltage φ1 .5±0.1 Cathode indification ◇ and fast switching.These devices are protected by a PN junction guard ring against excessive voltage, 0.4±0.1 3.4 +0.3 -0.1 such as electrostatic discharges. These diodes are also available in the DO-35 case with ◇ Dimensions in millimeters type designations BAT42 to BAT43 and in the SOD-123 case with type designations BAT42W to BAT43W Mechanical Data ◇ Case: MINI-MELF,glass case ◇ Polarity: Color band denotes cathode ◇ Weight: 0.031 grams MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25℃ ambient temperature unless otherwise specified. MAXIMUM RATINGS Peak reverse voltage VRRM LL42/LL43 UNITS 30 V 1) IF 200 Surge forward current at t p=10 ms IFSM 4.01) A Power dissipation Ptot 2001) mW Forward continuous current Thermal resistance junction to ambient air Junction temperature Storage temperature range 1) mA RθJA 0.3 Tj 125 ℃ TSTG -55 --- + 150 ℃ 1) Valid provided that electrodes are kept at ambient temperature. http://www.luguang.cn mail:[email protected] ℃/W LL42/LL43 Small Signal Schottky Diodes ELECTRICAL CHARACTERISTICS Reverse breakdown voltage V(BR) at IR=100µA MIN TYP MAX UNITS 30 - - V - - 1.0 - - 0.40 - - 0.65 Forward voltage pulse test tp=300µs,δ＜2% @I F=200mA @I F=10mA LL42 @I F=50mA LL42 @I F=2mA LL43 - - 0.33 @I F=15mA LL43 - - 0.45 - - 0.5 - - 100 VF V Leakage current pulse test t p＜300µs,δ＜2% @VR=25V IR @V R=25V,TJ=100℃ µA Junction capacitance at V R=1V f=1MHZ CJ - 7.0 - pF Reverse recovery time trr - - 52) ns Rectification efficiency ηv 803) - - % 2) IF=10mA,IR=10mA,Irr=1mA,RL=100Ω 3) RL=15KΩ,CL=300pF,f=45MHz,VRF=2V http://www.luguang.cn mail:[email protected] LL42/LL43 Small Signal Schottky Diodes Ratings AND Charactieristic Curves 250 200 150 100 50 0 0 50 100 150 FIG.2 --PEAK FORWARD SURGE CURRENT PEAK FORWARD SURGE CURRENT AMPERES AVERAGE FORWARD CURRENT MILL AMPERES FIG.1 --FORWARD DERATING CURVE 200 5 4 3 TJ =125 8.3ms Single Half Sine-Wave 2 1 0 10 1 AMBIENT TEMPERATURE, NUMBER OF CYCLES AT 60 Hz FIG.4--PEAK JUNCTION CAPACITANCE JUNCTION CAPACITANCE,pF INSTANTANEOUS FORWARD CURRENT MILL AMPERES FIG.3--TYPICAL FORWARD CHARACTERISTIC 1000 TJ=25 Pulse Width=300µS 200 LL 42 100 40 20 10 6 4 LL43 2 1 0 0.2 0.4 0.6 0.8 1.0 100 1.2 100 40 30 20 10 4 TJ=25 f=1MHz 2 1 .1 .2 .4 1.0 2 4 10 20 1.4 INSTANTANEOUS FORWARD VOLTAGE,VOLTS http://www.luguang.cn REVERSE VOLTAGE,VOLTS mail:[email protected] 40 100