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| NEW PRODUCT NEW PRODUCT NEW PRODUCT IDB31 PLANAR SILICON BIDIRECTIONAL TRIGGER DIODE SOT-23 .122 (3.1) .118 (3.0) .016 (0.4) 3 .056 (1.43) .052 (1.33) FEATURES Intend for use in triac and thyristors circuits VBO: 30V to 34V Excellent Breakover Voltage Symmetry: typ. 1% Low Breakover Current: 20A typ. Marking: B31 Bidirectional Operation: Pin 2 and 3 connected to the circuit Pin 1 has to stay open .045 (1.15) .037 (0.95) Top View 1 2 max. .004 (0.1) .007 (0.175) .005 (0.125) .037(0.95) .037(0.95) IMPORTANT Do not connect Pin 1 to ground, VCC or any signal lines. Pin 1 has to be soldered at a solderpad without any further lines .016 (0.4) .016 (0.4) .102 (2.6) .094 (2.4) 1 MECHANICAL DATA Top View 2 3 Case: SOT-23 Plastic Package Weight: approx. 0.008g Marking code: B31 Dimensions in inches and (millimeters) MAXIMUM RATINGS In accordance with the Absolut Maximum Rating System (IEC 134). SYMBOL VALUE UNIT Power dissipation Repetitive peak on-state current tp=20s, f=100Hz Operating junction temperature range at tp < 1 s, Tamb = 25 C Storage temperature range Thermal resistance junction to ambient air Ptot ITRM 150 (NOTE 1) 2 mW Amps TJ TS RthA -40 to +125 -40 to +125 400 (NOTE 1) C C C/W NOTES: (1) Device on fiberglass substrate, see layout in Fig. 4 1/15/99 ELECTRICAL CHARACTERISTICS at Tj = 25 C, unless otherwise specified; electrical characteristics applicable in both, forward and reverse direction SYMBOL MIN. TYP. MAX. UNIT Breakover Voltage see Fig. 1 Breakover Voltage Symmetry see Fig. 1 Dynamic Breakback Voltage (IBO to IF=10mA), see Fig. 1 Output Voltage see Fig. 2 Breakover Current see Fig. 1 Rise time see Fig. 3 Leakage current VB=0,5*VBO max. see Fig. 1 VBO 1/2VBO11/2-1/2VBO21/2 1/2DV1/2 VO 30 32 34 Volts - - 2 Volts 5 8 - Volts 5 - - Volts mA ns IBO 4 20 50 tr - 100 - IB - - 0.5 mA FIG. 1 - CURRENT-VOLTAGE CHARACTERISTICS +I F 10mA I BO -V IB 0.5 VBO DV +V VBO1 VBO2 -I F RATINGS AND CHARACTERISTIC CURVES IDB31 FIG. 2 - TEST CIRCUIT FIG. 3 - TEST CIRCUIT SEE FIG. 1 ADJUST R FOR IP=0.5A IDB31 10k1/2 500k1/2 220V 50Hz IP 0.1mF R=201/2 VO 10% 90% IP Ir FIG. 4 - Layout for Rth test Dimensions in mm Thickness: Fiberglass 1.5mm Cu leads 0.3mm FIG. 5 - ADMISSIBLE POWER DISSIPATION VERSUS AMBIENT TEMPERATURE 200 0.30 (7.5) 0.12 (3) Ptot (mW) .04 (1) .08 (2) .04 (1) .08 (2) 150 100 50 0.59 (15) 0.47 (12) 0 0.03 (0.8) 0 100 200 Tamb (C) 0.2 (5) FIG. 6 - RELATIVE VARIATION OF VBO vs. Tj 34 0.06 (1.5) 0.20 (5.1) 33 32 31 VBO 30 29 28 27 26 0 25C 50C 75C 100C 125C Ta |
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