188244 Diode, switching, leaded These diodes are in a glass sealed Dimensions (Units : mm) envelope and are suitable for lead mounting on printed circuit boards. CATHODE BAND Features eoneet * available in DO-34 package ye oc + cae . : | : Part marking, see following table | at: lease] wot 18%0.2 Applications EE * high voltage rectification Cathode band color and marking Part no. Color Marking 188244 | Black 244 Absolute maximum ratings (T, = 25C) Parameter Symbol Limits Unit Peak reverse voltage Vam 250 V DC reverse voltage VR 220 Vv Peak forward current lem 625 mA Mean rectifying current lo 200 mA Surge current (1 s) leurge 1000 mA Power dissipation Py 300 mw Junction temperature T; 175 C Storage temperature Tstg 65 ~ +175 C Electrical characteristics (unless otherwise noted, T, = 25C) Parameter Symbol; Min |Typical) Max Unit Conditions Forward voltage Ve 1.13 1.5 Vv \p = 200 MA Reverse current Ip 0.05 10 WA |V_=220V Capacitance between _ _ terminals Ct 0.95 3 pF |Va=0V,f=1 MHz Reverse recovery time ter - 75 ns [lp = 20 MA, Ip = 20 mA, R, = 50 Q Diodes ROHM 99188244 Switching diodes Electrical characteristic curves iF (mA) FORWARD CURRENT : CAPACITANCE BETWEEN TERMINALS : C. pl 200 100 50 0.5 0.2 0 04 06 08 10 12 14 16 18 FORWARD VOLTAGE : VF (V) Figure 1 0 2 3 4 5 REVERSE VOLTAGE : va (V1 Figure 3 (A! SURGE CURRENT laure 1 0 LOO 1 000 PULSE W!I7TH : Tw (ms) Figure 5 10 000 5 000 2 000 1 000 REVERSE CURRENT : Ir (nA) REVERSE VOLTAGE : Va iV: Figure 2 TTT) ES ea fit Ls | | | wolf 4o/- REVERSE RECOVERY TIME :t.. g tL o.)65~CU10CO 2580 885 FORWARD GURRENT | ir (mA) Figure 4 0.01 pF Diode under test | | > | ld ~ Pulse yunerator 5 kQ Sampling Output: 50 W $50 92 | oscilloscope Test circuit for measurin reverse recovery time (t,, Figure 6 100 ROM Diodes