BL SODDB3 、 SODDB4 GALAXY ELECTRICAL SURFACE MOUNT VBO: RECTIFIER 28 -- 45 V FEATURES SOD-123FL ◇The three layer,two terminal,axial lead, hermetically sealed diacs are designed specifically for triggering thyristors. They demonstrate low breakover current at breakover voltage as they withstand peak pulse current. The breakover 1.8 0.1 symmetry is within three volts.These diacs are 1.0 0.2 5° 2.8 0.1 intended for use in thyrisitors phase control, 0.05 0.30 circuits for lamp dimming,universal motor speed 0.98 0.1 control,and heat control. 0.60 0.25 5 MECHANICAL DATA ◇ Case:JEDEC SOD-123FL,molded plastic over passivated chip ◇ Weight: 0.006 ounces, 0.02 gram 3.7 0.2 ABSOLUTE RATINGS Parameters Device marking code SODDB3 SODDB4 DB DC UNITS Power dissipation on printed circuit (L=10mm) T A= 50 ℃ Pc 150 mW Repetitive peak on-state current tp=20µs, f=120Hz ITRM 2.0 A Tj - 40 --- + 125 ℃ TSTG - 40 --- + 125 ℃ Operating junction temperature Storage temperature ELECTRICAL CHARACTERISTICS Test Conditions Parameters Breakover voltage * C=22nF** See FIG.1 VBO |+VBO|- SODDB3 SODDB4 Min 28 35 Typ 32 40 Max 36 45 UNITS V C=22nF** See FIG.1 Max ± 3.0 V |±∆V| ∆I =(IBO→ IF=10mA) See FIG.1 Min 5.0 V Output voltage * VO See FIG.2 Min 5.0 V Breakover current * IBO C=22nF** Max 100 µA tr See FIG.3 Typ 1.5 µs IR VR=0.5VBO Max 10 Breakover voltage symmetry Dynamic breakover voltage * Rise time* Leakage current NOTE: * |-VBO| * Electrical characteristics applicable in both forward and reverse directions. ** Connected in parallel with the devices. Document Number 0280061 BLGALAXY ELECTRICAL µA www.galaxycn.com 1. RATINGS AND CHARACTERISTIC CURVES SODDB3.SODDB4 FIG.1--VOLTAGE-CURRENT CHARACTERISTIC CURVE FIG.2--TEST CIRCUIT FOR OUTPUT VOLTAGE +IF 10mA 10k I BO IB -V 500k D.U.T 220V 60Hz R=20 VO +V 0.5VBO 0.1 F Ｖ VBO -IF FIG.3-- TEST CIRCUIT SEE FIG.2 ADJUST R FOR IP=0.5A FIG.4--POWER DISSIPATION VERSUS AMBIENT TEMPERATURE (MAXIMUM VALUES) P(mW) 160 140 90% 120 IP 100 80 60 40 10% 20 0 0 FIG.5--RELATIVE VARIATION OF VBO VERSUS JUNCTION TEMPERATURE(TYPICAL VALUES) １．０８ o Tamb( C) tr 10 20 30 40 50 60 70 80 90 100 110 120 130 FIG.6--PEAK PULSEE CURRENT VERENT VERSUS PULSE DURATION(MAXIMUM VALUES) ITRM(A) VBO(TJ) VBO(TJ=25 ) 2 1 1.06 f=100Hz TJ( ) TJ initial=25 1.04 0.1 tp(µS) 1.02 1.00 25 50 75 100 125 0.01 10 100 1000 10000 www.galaxycn.com Document Number 0280061 BLGALAXY ELECTRICAL 2.