DB3, DB4, DB6 TS, BIDIRECTIONAL DIACS POWER DISSIPATION 150 mW FEATURES e Three way layer, two terminal,axial lead, hermetically sealed diacs are designed specifically for triggering thyrisitors. They demonstrate low breakover current at breakover voltage as they withstand peak pulse current. The breakover symmetry is within three volts (DB3, DB4) or four volts (DB6). These diacs are intended for use in thyrisitors phase control, circuits for lamp dimming, universal motor speed control,and heat control. e This diocle is also avaiable in the DO-35 case. DO-35(GLASS) 1.02(26.0) MIN .079(2.0) Ly 165(4.2) MAX 4.02(26.0) MIN 020(.52) Trp ls | Dimensions in inches and (millimeters) ABSOLUTE RATINGS SYMBOL VALUE PARAMETER DB3 DB4 DB6 UNITS Power Dissipation on Printed Pc mw Circuit (L=10mm) Ta=50C 150 Repetitive Peak on-state tp=10 uS Current f=100 Hz ITRM 2.0 Storage and Operating Junction Temperature TstTG/Ts -40 to +125 /-40 to +110 c ELECTRICAL CHARACTERISTICS VALUE PARAMETER SYMBOL TEST CONDITIONS UNITS DB3 DB4 DB6 Min 28 35 56 Breakover Voltage * VBo C=22nf * TYP 32 40 60 V See Diagram 1 Max 36 45 70 + - = o Breakover Voltage Symmetry veo See Diagram 1 Max +3 v Dynamic Breakover Voltage + Al(IBo to IF = 10mA) i y' 19 I+ AVI See FIG Min 5 Output Voltage * Vo See FIG2 Min 5 Breakover Current * IBO C=22nF ** Max 100 uA Rise Time * tr See FIG3 Typ 1.5 us Leakage C' t* IB =0.5 VBo max eakage Curren IB See FIG 3 Max 10 uA NOTE: * Electrical characteristics applicable in both forward and reverse directions. **Connected in parallel with the devices. RATING AND CHARACTERISTIC CURVES DB3,DB4,DB6 FIG.1 - CURRENT-VOLTAGE CHARACTERISTICS 1omA |_ IBO IB A VBO v -lIF FIG.3-TEST CIRCUIT SEE GIF.2 ADJUSTR FOR Ip=0.5A FIG.5 - RELATIVE VARIATION OF VBO VERSUS JUNCTION TEMPERATURE(TYPICAL VALUES) VBO(ly) VBO(TJ=25C) 1.08 1.06 Ts=(C) 1.04 1.02 1.00 25 50 75 100 125 FIG.2 - TEST CIRCUIT FOR OUTPUT VOLTAGE plug Lt bs 10Ka 500Ka D.U.T 220V 60Hz = Vo R=200 0.1uF o FIG.2 - TEST CIRCUIT FOR OUTPUT VOLTAGE P(mW) 160 140 120 100 80 60 40 20 0 0 10 20 30 40 50 60 70 80 90 100 110 120 130 FIG.6 - PEAK PULSE CURRENT VERSUS PULSE DURATION(MAXIMUM VALUES) f=100Hz J 10 100 1000 10000