THE FLUORACTOR(R) Y1112 FLUORESCENT LAMP STARTER SWITCH V(BR) 1200 to 1500 V IH > 175 mA IGT < 2 mA TO-220 PACKAGE (TOP VIEW) 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 1 A 2 G 3 Pin 2 is in electrical contact with the mounting base. MDC1ACA absolute maximum ratings at 25C case temperature (unless otherwise noted) RATING SYMBOL VALUE Crest working off-state voltage (Full wave rectified 50 Hz a.c.) VDWM 375 V Peak reverse gate voltage VRGM 6 V IT 1.5 On-state current -- continuous UNIT -- repetitive peak ITRM 2 -- non-repetitive peak ITSM 10 Peak gate current IGRM 0.5 A Average gate power PG(av) 0.3 W C A Operating case temperature range TC -5 to +85 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 25C case temperature (unless otherwise noted ) PARAMETER TEST CONDITIONS ID Off-state current VD = VDWM VT On-state voltage IT = 2 A V(BR) Clamping voltage IBR = 5 mA Holding current See application circuit IH IGTM VGTM Peak gate trigger current Peak gate trigger voltage MIN TYP Tj = 65C tp < 200 s, 2% duty cycle 1200 MAX UNIT 1 mA 3.1 V 1500 175 V mA VAA = 10 V RL = 10 2 mA VAA = 10 V RL = 10 3 V MAX UNIT thermal characteristics PARAMETER MIN TYP RJA Junction to free air thermal resistance 62.5 C/W RJC Junction to case thermal resistance 3.5 C/W JUNE 1984 - REVISED SEPTEMBER 2002 Specifications are subject to change without notice. 1 THE FLUORACTOR(R) Y1112 FLUORESCENT LAMP STARTER SWITCH 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 ends and ultimately required tube replacement. The Y1112, "Fluoractor (R)", has been specifically introduced for use in electronic starters. This unique device offers the lighting industry an opportunity to develop electronic starters small enough to be retrofit replacements for the established electromechanical canisters. Its double thyristor structure with integrated zener clamp diode and current mirror provides the technology for a starter with enhanced features such as controlled flicker free start up, automatic tube shutdown at end of tube life and reduced degradation of tube ends leading to extended life. The increased functionality, lifetime and reliability of these starters has led in some cases to them being embodied in the ballast itself, a development not feasible with the old electromechanical canisters. 150 k Y1112 D5 R2 68 k D5 to 7 3 x 1N4001 D1 to 4 (see Note A) 4 x 1N4007 R3 6.8 k D6 D7 FLSCCT1 Figure 1. Two terminal starter circuit NOTE 1: These rectifiers need to be voltage selected for VR V(BR)max + 150 V 2 JUNE 1984 - REVISED SEPTEMBER 2002 Specifications are subject to change without notice. Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Bourns: Y1112-S