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| BL GALAXY ELECTRICAL SMALL SIGNAL SWITCHING DIODE FEATURES Silicon epitaxial diode High speed switching diode 500mW power dissipation LL4148 1111REVERSE VOLTAGE: 75 V CURRENT: 0.15 A MINI-MELF Cathode indification 0.1 Case:MINI-MELF glass case Polarity:Color band denotes cathode Weight: Approx 0.031 grams 3.4 +0.3 -0.1 0.4A O| 1 .5A 0.1 MECHANICAL DATA MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25oC ambient temperature unless otherwise specified MAXIMUM RATINGS LL4148 Reverse voltage Peak reverse voltage Average forw ard rectified current Half w ave rectification w ith resistive load at tamb=25oC and f 50Hz IFSM Ptot TJ TSTG IO VR V RM UNITS V V mA mA mW o o 75.0 100.0 150.0 500.00 500.0 1) Forw ard surge current at t 1S and T =25oC J Pow er dissipaton at tamb Junction temperature Storage temperature range =25oC 175.0 35-55--- +175 C C 1) Valid prov ided that electrodes are kept at ambient temperature. ELECTRICAL CHARACTERISTICS MIN Forw ard voltage @ IF=10mA Leakage current at V R=20V at V R=75V 111111111at V R=20V TJ =150oC Capacitance at V F=V R=0V Voltage rise w hen sw itching on tested w ith 50mA pulses tp=0,1 S,rise time 30ns, fp=5 to 100KHz TYP - MAX 1.0 25.0 5.0 50.0 4.0 2.5 UNITS V VF IR IR IR Ctot Vfr - nA A A pF V Reverse recovery time from IF=10mA V R=6V,RL=100 ,at IR=1mA Thermal resistance junction to ambient Rectification effciency at 100MHz,V RF=2V trr R - - 4.0 350.01) ns K/W www.galaxycn.com JA V 0.45 - - 1)Valid prov ided that electrodes are kept at ambient temperature Document Number 0268010 BLGALAXY ELECTRICAL 1. RATINGS AND CHARACTERISTIC CURVES FIG.1 -- ADMISSIBLE POWER DISSIPATION VERSUS AMBIENT TEMPERATURE LL4148 FIG.2-- FORWARD CHARACTERISTICS mW 1000 mA 3 10 900 800 700 P tot 10 IF 2 TJ =100 C O 600 500 400 300 200 10 TJ =25 C O 1 -1 100 0 0 25 10 100 175 200ae TA 10 -2 0 1 2V V F FIG.3-ADMISSIBLE REPETITIVE PEAK FORWORD CURRENT VERSUS PULSE DURATION 100 I IFRM V=tp/T T=1/tp 10 0.1 n=0 tp IFRM 1 0.2 0.3 T 0.1 -5 -3 -2 -1 10 10 10 10 1 10S tp www.galaxycn.com Document Number 0280010 BLGALAXY ELECTRICAL 2. |
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