THE FLUORACTOR Y1112 FLUORESCENT LAMP STARTER SWITCH .. 1 JUNE 1984 - REVISED SEPTEMBER 2002 Specifications are subject to change without notice. œ V(BR) 1200 to 1500 V œ IH > 175 mA œ IGT < 2 mA description This product is intended for use as a T8/T12 fluorescent tube starter switch on 200-240 V a.c. supplies with tube sizes up to 5ft with leading and lagging ballast circuits. K A G TO-220 PACKAGE (TOP VIEW) Pin 2 is in electrical contact with the mounting base. MDC1ACA 1 2 3 absolute maximum ratings at 25°C case temperature (unless otherwise noted) RATING SYMBOL VALUE UNIT Crest working off-state voltage (Full wave rectified 50 Hz a.c.) VDWM 375 V Peak reverse gate voltage VRGM 6 V On-state current — continuous — repetitive peak — non-repetitive peak IT ITRM ITSM 1.5 2 10 A Peak gate current IGRM 0.5 A Average gate power PG(av) 0.3 W Operating case temperature range TC -5 to +85 °C Storage temperature range Tstg -10 to +110 °C Lead temperature during soldering 1.6 mm from the case for 10 seconds Tlead 230 °C electrical characteristics at 25°C case temperature (unless otherwise noted ) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ID Off-state current VD = VDWM Tj = 65°C 1 mA VT On-state voltage IT = 2 A 3.1 V V(BR) Clamping voltage IBR = 5 mA tp < 200 ìs, 2% duty cycle 1200 1500 V IH Holding current See application circuit 175 mA IGTM Peak gate trigger current VAA = 10 V RL = 10 Ù 2 mA VGTM Peak gate trigger voltage VAA = 10 V RL = 10 Ù 3 V thermal characteristics PARAMETER MIN TYP MAX UNIT RèJA Junction to free air thermal resistance 62.5 °C/W RèJC Junction to case thermal resistance 3.5 °C/W

THE FLUORACTOR Y1112 FLUORESCENT LAMP STARTER SWITCH 2 .. JUNE 1984 - REVISED SEPTEMBER 2002 Specifications are subject to change without notice. applications data The conventional method of starting fluorescent tubes employs the use of an electromechanical canister. This consists of a bimetallic strip which opens as it cools and in conjunction with the ballast inductor, provides the tube striking voltage. However, the random nature of the pulsing results in repeated striking attempts and degradation of both the tube and starter. The tube degradation is illustrated by its progressively blackening...