DB3 DCCOM | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 2
Technical content
PARAMETERS SYMBOL DB3 DB4 UNITS VOLT 28 35 Min Breakover Voltage +VBO, -VBO 32 40 Typ 36 45 Max VOLT Breakover Voltage Symmetry (+VBO)-(-VBO) 3 3 Max VOLT Dynamic Breakback Voltage VBO - VBR 5 5 Min uA Breakover Current +IBO, -IBO 100 100 Max Peak Pulse Current for AMP 10uS, 120pps, TA<=40 oC IP 2.0 2.0 Max TECHNICAL SPECIFICATIONS OF BIDIRECTIONAL DIODE THYRISTORS (DIACS) FEA TURES MECHANICAL DA T A * Case: Glass sealed case * Mounting position: Any * Weight: 0.15 gram 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%. DB3 THRU DB4 DO-35 Dimensions in millimeters RECTIFIER SPECIALISTSR DC COMPONENTS CO., LTD. * Lead: MIL-STD-202E, Method 208 guaranteed * 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. 0.52Ø 2.0MAX 25.0MIN 4.2MAX 25.0MIN 156
R DC COMPONENTS CO., LTD. RATING AND CHARACTERISTIC CURVES ( DB3 THRU DB4 ) 200Ω FIG.1-V-I CHARACTERISTICS CURRENT BREAKOVER VOLTAGE VOLTAGE +VBo+VBR-IBo -5mA +5mA +IBo -VBo -VBR FIG.2-REPETITIVE PEAK ON-STATE CURRENT VS PULSE DURATION PULSE REPEAT ON RATE =120 PPS Tz=400C D60 2.0 1.0 0.7 0.5 0.3 0.2 0.1 .07 .05 .03 .02 .01 .007 .005 .003 .002 .001 D28 32 35 40&50 SAFE OPERATING AREA 10 100 1000 10,000 FIG.5-CIRCUIT USED TO MEASURE DIAC CHARACTERISTICS RF D.U.T. 0.1u f Vc 120V RMS 60Hz *ADJUST FOR ONE FIRING IN HALF CYCLE FIG.4-TEST CIRCUIT WAVE FORMS (SEE FIG.5) aV+ aV- +V(BO) -V(BO) 0 t +IP -IP t FIG.3-NORMALIZED VBO CHANGE VS JUNCTION TEMPERATURE -40 -20 0 +20 +40 +60 +80 +100 +120 +140 D28 32 35 40 50 D60 157