DB4

DC COMPONENTS CO., LTD. R DB3 THRU DB4 RECTIFIER SPECIALISTS TECHNICAL SPECIFICATIONS OF BIDIRECTIONAL DIODE THYRISTORS (DIACS) FEATURES * Glass passivalted three-layer for triggering thyristors. * Low breakover current at breakover voltage. * For use in thyristor phase-control circuit for lampdimming, universal-motor speed control and heat controls. DO-35 MECHANICAL DATA * Case: Glass sealed case * Lead: MIL-STD-202E, Method 208 guaranteed * Mounting position: Any * Weight: 0.15 gram 25.0MIN 0.52Ø 4.2MAX 2.0MAX 25.0MIN MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25 o C ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20%. Dimensions in millimeters PARAMETERS SYMBOL DB3 28 DB4 35 40 45 3 5 100 2.0 UNITS VOLT Min Typ Max VOLT Max VOLT Min uA Max AMP Max Breakover Voltage +VBO, -VBO 32 36 Breakover Voltage Symmetry Dynamic Breakback Voltage Breakover Current Peak Pulse Current for 10uS, 120pps, TA<=40 o C (+VBO)-(-VBO) VBO - VBR +IBO, -IBO IP 3 5 100 2.0 156 NEXT BACK NEXT EXIT BACK RATING AND CHARACTERISTIC CURVES ( DB3 THRU DB4 ) FIG.1-V-I CHARACTERISTICS CURRENT 2.0 1.0 0.7 0.5 0.3 0.2 0.1 .07 .05 .03 .02 .01 .007 .005 .003 .002 .001 FIG.2-REPETITIVE PEAK ON-STATE CURRENT VS PULSE DURATION PULSE REPEAT ON RATE =120 PPS Tz=400C BREAKOVER VOLTAGE D28 32 35 40&50 D60 +5mA +IBo -VBo -VBR -IBo -5mA +VBR +VBo VOLTAGE SAFE OPERATING AREA 10...