LL4448

BL GALAXY ELECTRICAL SMALL SIGNAL SWITCHING DIODE FEATURES Silicon epitaxial diode High speed switching diode 500mW power dissipation LL4448 1111REVERSE VOLTAGE: 75 V CURRENT: 0.15 A MINI-MELF Cathode indification φ .5±0.1 1 3.4 +0.3 -0.1 0.4±0.1 MECHANICAL DATA Case:MINI-MELF glass case Polarity:Color band denotes cathode Weight: Approx 0.031 grams MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25oC ambient temperature unless otherwise specified MAXIMUM RATINGS LL4448 Reverse voltage Peak reverse voltage Average forw ard rectified current Half w ave rectification w ith resistive load at VR=0V 1 Forw ard surge current at tp= µ s Pow er dissipaton at tamb Junction temperature Storage temperature range =25oC IO VR V RM UNITS V V mA A 75 100 150 2.0 500 1) IFSM Ptot TJ TSTG mW o o 175 35-55--- +175 C C 1) Valid prov ided that electrodes are kept at ambient temperature. ELECTRICAL CHARACTERISTICS MIN Forw ard voltage @ IF=5.0mA @IF=100mA TYP 0.93 - MAX 0.72 1.0 UNITS V VF IR IR IR Ctot Vfr 0.62 - Leakage c urrent at V R=20V at V R=75V 111111111at V R=20V TJ =150oC Capacitance at V R=0V,f=1MHz,VHF=50mV Voltage rise w hen sw itching on tested w ith 50mA pulses tp=0.1 S,rise time 30ns, fp=5 to 100KHz - 25.0 5.0 50.0 4.0 2.5 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 5001) ns K/W www.galaxycn.com JA V 0.45 - - 1)Valid prov ided that electrodes are kept at ambient temperature Document Number 0268026 BLGALAXY ELECTRICAL 1. RATINGS AND CHARACTERISTIC CURVES FIG.1 -- ADMISSIBLE POWER DISSIPATION VERSUS AMBIENT TEMPERATURE LL4448 FIG.2-- FORWARD CHARACTERISTICS mW 1000 mA 3 10 900 800 700 P tot 2 10 IF TJ =100 C O 600 500 400 300 200 10 TJ =25 C O 1 -1 100 0 0 25 200℃ 10 100 175 T A 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 0280026 BLGALAXY ELECTRICAL 2.