The ELD213 is a solid state relay (SSR) manufactured by Everlight Electronics Co. Ltd. It is designed for use in applications requiring electrical isolation and switching of AC or DC loads. This SSR integrates an infrared emitting diode (IRED), a photodiode array, and a MOSFET output stage to provide a robust and reliable switching solution.

Applications:

• Industrial Control Systems: Used for switching motors, solenoids, and other industrial loads.
• Lighting Control: Provides silent and reliable switching of lighting systems.
• Security Systems: Used in alarm systems and other security devices for switching signals.
• Automatic Test Equipment (ATE): Switching signals in automated testing systems.
• Medical Equipment: Provides electrical isolation in sensitive medical devices.

Features:

• High Isolation Voltage: Ensures excellent electrical isolation between input and output.
• Zero-Crossing Detection: Reduces electrical noise and inrush current during switching.
• Low On-Resistance: Minimizes power dissipation and voltage drop.
• High Surge Capability: Withstands high surge currents without damage.
• Compact Package: Space-saving design for high-density circuit boards.

Benefits:

• Electrical Isolation: Protects control circuits from high voltages and transients.
• Silent Operation: Eliminates the audible noise associated with mechanical relays.
• Long Lifespan: Solid-state design provides a longer lifespan compared to mechanical relays.
• Reduced EMI: Zero-crossing detection minimizes electromagnetic interference.
• High Reliability: Robust design ensures reliable switching performance.

Additional Details:

The ELD213 typically offers an isolation voltage of several kilovolts, providing robust protection. Its low on-resistance minimizes power dissipation, enhancing efficiency. Zero-crossing detection helps to reduce electrical noise and inrush current. The operating temperature range typically extends from -40°C to +85°C, making it suitable for a wide range of environments. The device is generally available in surface-mount (SMD) and through-hole packages. Key electrical characteristics include the load voltage, load current, and control current. The specific values for these parameters will depend on the exact model within the ELD213 series. Due to the solid-state nature of the design, there are no contact bounce issues typical of mechanical relays, further enhancing reliability. Careful consideration of the load characteristics (resistive, inductive, capacitive) is essential for optimal performance and longevity of the SSR.