The LCC120STR is a single-pole, normally open (1-Form-A) solid-state relay (SSR) manufactured by IXYS Integrated Circuits (formerly Clare). It's designed for high-voltage applications requiring isolated switching. The LCC120STR utilizes opto-isolation to provide electrical isolation between the control signal and the load being switched.

Applications:

• Telecommunications: Tip and ring switching, telecom switching equipment.
• Instrumentation: Isolated data acquisition systems, automated test equipment.
• Industrial Control: Motor control, solenoid control, lighting control.
• Medical Equipment: Patient monitoring equipment, medical device isolation.

Features:

• Load Voltage: Up to 350V<sub>peak AC or DC.
• Load Current: Up to 120mA continuous.
• Isolation Voltage: 3750V<sub>RMS input/output isolation.
• Control Voltage: 3V to 15V DC control voltage range.
• Low On-Resistance: Low on-resistance for minimal power dissipation.
• Surface Mount Package: Small surface-mount package for high-density board designs.

Benefits:

• High Isolation: Provides robust electrical isolation for safety and signal integrity.
• Long Life: Solid-state design offers superior lifespan compared to electromechanical relays.
• Fast Switching: Fast switching speeds for high-frequency applications.
• Low Power Consumption: Low control current requirements for energy-efficient operation.
• Small Size: Compact surface-mount package saves board space.

Additional Details:

The LCC120STR uses an infrared LED to activate a photovoltaic diode array, which in turn drives a MOSFET switch. This arrangement provides excellent electrical isolation between the input and output. It's crucial to observe the maximum voltage and current ratings to prevent damage to the relay. The part is RoHS compliant. The operating temperature range is typically -40°C to +85°C. The input current required to activate the relay is typically a few milliamperes. The LCC120STR is often used in applications where safety isolation is a critical requirement, such as in medical devices and industrial control systems.