BL GALAXY ELECTRICAL SMALL SIGNAL SWITCHING DIODE 1SS245 REVERSE VOLTAGE: 250 V CURRENT: 0.2 A FEATURES Glass sealed envelope. (MSD) DO - 35(GLASS) VRM=250V guaranteed High reliability MECHANICAL DATA Case: DO-35,glass case Polarity: Color band denotes cathode Weight: 0.004 ounces, 0.13 grams MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25 ambient temperature unless otherwise specified. Single phase,half wave,50 Hz,resistive or inductive load. For capacitive load,derate by 20%. 1SS245 UNITS Maximum recurrent peak reverse voltage VRRM 250 V Maximum DC blocking voltage VDC 220 V IF(AV) 0.2 A IFSM 625.0 mA Maximum average forward rectified current Peak forw ard surge current 10ms single half-sine-w ave superimposed on rated load Maximum instantaneous forward [email protected] A VF 1.5 V Maximum reverse current IR 10.0 μA CT 3.0 pF Ptot 300 mW Reverse recovery time IF=20mA,IR=20mA,RL=50Ω t rr 75 ns @VR=220V Capacitance between terminals @VR=0V,f=1MHz Power dissipation Operating junction temperature range Storage temperature range TJ - 55 ---- + 175 TSTG - 55 ---- + 175 www.galaxycn.com Document Number 0268009 BLGALAXY ELECTRICAL 1. RATINGS AND CHARACTERISTIC CURVES 1SS245 FIG.2 -- REVERSE CHARACTERISTICS FIG.1 --FORWARD CHARACTERISTICS 10 REVERSE CURRENT, A 100 20 10 0.1 0 0.2 25 1 0.4 -25 TA= 125 2 75 FORWARD CURRENT, mA 200 0.6 0.8 1.0 1.2 1.4 1.6 100 1 75 50 100n TA=25 10n 0 1.8 50 1.1 1.0 0.9 0.8 0.7 0 1 2 3 200 250 300 350 FIG.4 -- REVERSE RECOVERY TIME CHARACTERISTICS FIG.3 -- CAPACITANCE BETWEEN TERMINALS CCCCCC CHARACTERISTICS 0.6 150 FORWARD VOLTAGE, V 4 5 REVERSE RECOVERY TIME, ns CAPACITANCE BETWEEN TERMINALS, pF FORWARD VOLTAGE, V 100 140 IR=10mA Irr=1mA 120 100 80 60 40 20 0 0 5 10 15 20 25 35 30 REVERSE VOLTAGE, V FORWARD CURRENT, mA FIG.5 -- SURGE CURRENT CHARACTERISTICS FIG.6 -- REVERSE RECOVERY TIME (trr) MEASUREMENT CIRCUIT 14 SURGE CURRENT, A 12 10 0.1µ F D.U.T. 8 5K 6 PULSE GENERATOR OUTPUT 50 4 50 SAMPLING OSCILLOSCOPE 2 0 0 .1 1 10 100 1000 PULSE WIDTH, ms www.galaxycn.com Document Number 0268009 BLGALAXY ELECTRICAL 2.