DB3,DB4,DB6 SILICON BIDIRECTIONAL DIACS POWER DISSIPATION DO- 41 FEATURES 150 mW DO-35(GLASS) ●Three way layer two terminal, axial lead , hermetically sealed diacs are designed specifically for .034(0.9) DIA .028(0.7) triggering thyrisitors .The demonstrate low breakover current. 1.0(25.4) MIN The breakover symmetry is within three volts(DB3,DB4) .020 TYP. (0.51) 1.083(27.5) MIN or four volts(DB6).These diacs are intended for use in thyrisitors phase control.,circuits for lamp dimming universal motor speed control and heat .205(5.2) MAX control .150(3.8) MAX ●This diocle is also avaiable in the DO-41case. .107(2.7) DIA .080(2.0) .079 MAX (2.0) 1.0(25.4) MIN 1.083(27.5) MIN Dimensions in inches and (millimeters) ABSOLUTE RATINGS PARAMETERS VALUE SYMBOL DB3 Power Dissipation on Printed Cir cuit(L=10mm) UNITS DB4 DB6 Pc 150 mW ITRM 2.0 A TSTG/TJ -44 to+125/-40 to+110 ℃ TA=50℃ Repetitive Peak on-state Tp=10uS Current f=100HZ Storage and Operating Juntion Temperature ELECTRICAL CHARACTERISTICS PAPRAMETERS Breakover Voltage* Breakover Voltage Symmetry SYMBOLS VALUE TEST CONDITIONS C=22nf** See Diagram 1 VBO 1+VBOI- C=22nf** 1-VBOI See Diagram 1 UNITS DB3 DB4 DB6 Min 28 35 56 Typ 32 40 60 Max 36 45 70 V Max ±3 V Min 5 V See FIG 2 Min 5 V △I=(IBO to IF=10mA) Dynamic Breakover Voltage 1±△V1 See FIG 1 Output Voltage* VO Breakover Current* IBO C=22nf** Max 100 uA Rise Time* tr See FIG 3 Typ 1.5 uS Leakage Current* IB Max 10 uA IB=0.5 VBO MAX See FIG 3 NOTE:* Electrical characteristics applicable in both forward and reverse directions. ** Connected in parallel with the devices. ~ 211 ~ RATING AND CHARACTERISTIC CURVES DB3,DB4,DB6 FIG.1-CURRENT-VOLTAGE CHARACTERISTICS FIG.2-TEST CIRCUIT FOR OUTPUT VOLATGE +IF 10mA 10KΩ 500KΩ D.U.T 220V 60HZ VO IB IB R=20Ω 0.1uF 0.5VBO -V +V △V VBO -IF FIG.4-TEST CIRCUIT FOR OUTPUT VOLATGE FIG.3-TEST CIRCUIT SEE FIG.2 ADJUST R FOR Ip=0.5A P(mW) 160 IP 90% 140 120 100 80 10% 60 tr 40 Tamb(°C) 20 0 0 10 20 30 40 50 60 70 80 FIG.5-RELATIVE VARIATION OF VBO VERSUS JUNCTION TEMPERATURE(TYPICAL VALUES) 90 100 110 120 130 FIG.6-PEAK PULSE CURRENT VERSUS PULSE DURATION (MAXIMUM VALUES) ITRM(A) VBO(IJ) VBO(TJ=25℃） 2 1.08 1 f = 100Hz Tjinitial=25°C 1.06 TJ = (°C) 1.04 0.1 tp(us) 1.02 1.00 0.01 25 50 75 100 125 10 ~ 212 ~ 100 1000 10000