1SS245 Small Signal Switching Diodes REVERSE VOLTAGE: 250 V CURRENT: 0.2 A Features MINI-MELF Glass sealed envelope. (MSD) VRM=250V guaranteed Cathode indification φ1 .5±0.1 High reliability Mechanical Data 0.4±0.1 3.4 +0.3 -0.1 Case: MINI-MELF,glass case Dimensions in millimeters Polarity: Color band denotes cathode Weight: 0.031 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 Maximum average forward rectified current IF(AV) 0.2 IFSM 625.0 A Peak forw ard surge current 10ms single half-sine-w ave mA superimposed on rated load Maximum instantaneous forward [email protected] A VF 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 1.5 TJ - 55 ---- + 175 TSTG - 55 ---- + 175 http://www.luguang.cn mail:[email protected] V 1SS245 Small Signal Switching Diodes Ratings AND Charactieristic Curves 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 2 0 0 .1 1 10 100 1000 PULSE WIDTH, ms http://www.luguang.cn mail:[email protected] 50 SAMPLING OSCILLOSCOPE