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/c183 Mechanical Data @ T A = 25/c176C unless otherwise specified /c183 Maximum Ratings and Electrical Characteristics Three way layer two terminal, axial lead , hermetically sealed diacs are designed specifically for riggering thyrisitors .The demonstrate low breakover 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 Power Dissipation on Printed Cir cuit(L=10mm) TA=50℃ Repetitive Peak on-state Tp=10uS Current f=100HZ Storage and Operating Juntion Temperature ℃ A mW150 2.0 -44 to+125/-40 to+110 PARAMETERS DB3 DB4 VALUE DB6 UNITSSYMBOL Pc ITRM TSTG/TJ DB3 DB4 DB6 Min 28 35 56 Typ 32 40 60 Max 36 45 70 Output Voltage* Min V Breakover Current* Max uA Rise Time* Typ uS NOTE:* Electrical characteristics applicable in both forward and reverse directions. ** Connected in parallel with the devices. uAIB=0.5 VBO MAX See FIG 3 See FIG 3 Leakage Current* VMinDynamic Breakover Voltage See FIG 1 51 △V1 Breakover Voltage* C=22nf See Diagram 1 VBreakover Voltage Symmetry See Diagram 1 C=22nf VVBO 1+VBOI- 1-VBOI UNITSPAPRAMETERS TEST CONDITIONS VALUESYMBOLS See FIG 2VO △I=(IBO to IF=10mA) Max 1.5 MaxIB tr 100C=22nf**IBO DB3/DB4/DB6 A A B C D DO-35 Dim Min Max A 25.40 /c190 B /c190 4.00 C /c190 0.60 D /c190 2.00 All Dimensions in mm Case: DO-35
FIG.2-TEST CIRCUIT FOR OUTPUT VOLATGE VO 220V 60HZ 10KΩ 500KΩ D.U.T R=20Ω 0.1uF FIG.3-TEST CIRCUIT SEE FIG.2 ADJUST R FOR Ip=0.5A FIG.4-TEST CIRCUIT FOR OUTPUT VOLATGE FIG.1-CURRENT-VOLTAGE CHARACTERISTICS -IF +IF -V +V 10mA IB VBO IB 0.5VBO tr 10% 90% IP P(mW) 160 140 120 100 0 30 50 70 80 90602010 40 130100 110 120 Tamb(°C) FIG.5-RELATIVE VARIATION OF VBO VERSUS JUNCTION TEMPERATURE(TYPICAL VALUES) FIG.6-PEAK PULSE CURRENT VERSUS PULSE DURATION (MAXIMUM VALUES) VBO(IJ) VBO(TJ=25℃） 25 50 75 100 125 1.00 1.02 1.04 1.08 1.06 TJ = (°C) f = 100Hz Tjinitial=25°C tp(us) 10 100 1000 10000 0.01 0.1 ITRM(A)