KSD205AC3 Solid State Relay Features Outside Dimension : Unit (mm) 1. Molded epoxy body. 2. Zero crossing circuit. 3. High input/output insulation. 4. Small size and light weight. 5. Can be installed directly on the PC board. 6. Fast reactive speed. 7. Normally open. Applications 1. Household Appliances. 2. Temperature Control System. 3. Industrial Automatic Control. Schematic : Top View 4. Lighting System. 5. Office Appliances. 6. Factory Appliances. Absolute Maximum Ratings (Ta=25°C) Parameter Input Symbol Rating Unit Input Signal Voltage VIN 5~12 VDC Drop-out Voltage Vdo 1 VDC IT 5 Arms A RMS on-state current Output Peak one cycle surge current (8.3 ms) Isurge 50 Repetitive peak-off state Voltage VDRM 600 V f 47~70 Operating frequency Critical rate of rise of on-state current di/dt 50 Hz A/μS Load supply voltage Vout 250 Vrms AC Isolation Voltage input to output Viso 4000 Vrms Operating Temperature Topr -30~100 ƨ Storage Temperature Tstg -30~125 ƨ Soldering Temperature 10 Sec Tsol 260 ƨ Electrical Characteristics Parameter Input Output Pick-up Voltage (Ta=25°C) Symbol Vpu Conditions MIN Input current Iin Vin=5-12V On-state Voltage VT IT=1Arms Operating Current Iop Vout=240Vrms Leakage Current I leak Vout=240Vrms Critical rate of rise of off-state Voltage dv/dt See Note 1 5 Load Voltage Rating Vout IFT IT=50mArms MIN VDC 25 mA 1.5 Vrms mArms 7 50 mArms V/μS 200 DC500V Turn-on time Ton 60Hz AC Toff 60Hz AC Rth (j-C) I 50 VDRM=600V RISO Thermal resistance (between junction and case) Unit 4 Yes Isolation resistance input to output Turn-off time MAX 50 Zero-cross Voltage Minimum trigger current TYP It=1Arms 280 VAC 10 mA 8.3 mS 1010 ɖ 8.3 1.3 mS ƨ0X Note1：Output (dv/dt) protection is provided in all models, and they are designed to switch resistive or inductive loads to 0.2 power factor. The dv/dt rating is based on source impedance of 50 ohms. 28 c 2004 cosmo ELECTRONICS CORPORATION http://www.cosmo-ic.com KSD205AC3 Data Curve Fig.1 RMS On-state Current vs. Ambient Temperature Fig.2 Surge Current vs. Time Fig.3 Open Circuit Leak Current vs. Supply Voltage Open Circuit Leak Current ILeak (mArms) Surge Current (A) RMS On-state Current (A) (1) With infinite heat sink (2) With heat sink (70x70x2mm AI plate) (3) With heat sink (50x50x2mm AI plate) (4) Without heat sink Ambient Temperature Ta (°C) Supply Voltage (Vrms) Fig.6 Input Current vs. Input voltage Input Current (mA) Fig.5 Input Voltage vs. Ambient Temperature Input Voltage (V) RMS On-state Current (A) Fig.4 RMS On-state Current vs. CaseTemperature Time (SEC) Case Temperature Tc (°C) Fig.7 Action waveform Ambient Temperature Ta (°C) Input Voltage (VDC) Fig.8 WIRING DIAGRAM c 2004 cosmo ELECTRONICS CORPORATION http://www.cosmo-ic.com 29