1SS245

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