Broadcom Solid State Relay, 60V 200mA, DIP-8 SMD

The Broadcom ASSR-1228-302E is a highly reliable, 1-pole solid-state relay (SSR) designed for precise, low-power switching applications. Constructed using an AlGaAs infrared light-emitting diode (LED) input stage optically coupled to a high-voltage output detector, it provides excellent electrical isolation and noise immunity. The detector incorporates a high-speed photovoltaic diode array and driver circuitry to control two discrete high-voltage MOSFETs, ensuring fast and efficient switching.

This relay activates (contact closes) with a minimal input current of just 3mA through its input LED and deactivates (contact opens) when the input voltage drops to 0.8V or less. Its solid-state design offers significant advantages over traditional electromechanical relays, including silent operation, no contact bounce, vastly longer operational life, and high resistance to shock and vibration.

Key Features & Benefits

• Compact & Efficient: Features a surface-mount, DIP-8 package with gull wing terminals, making it ideal for high-density PCB designs.
• Bi-directional Switching: Capable of switching both AC and DC loads up to 60V and 200mA.
• Low On-State Resistance: Maximum resistance of 10 ohms minimises power loss and heat generation during operation.
• High Isolation Voltage: Provides a robust isolation barrier of 3.75kV between input and output, enhancing safety and system integrity.
• Fast & Reliable: Offers fast switching speeds with very low off-state leakage current (max 1µA) and minimal I/O capacitance (typically 0.8pF).

Engineered for demanding environments, the ASSR-1228-302E is a cornerstone component for designers seeking a durable and precise switching solution without mechanical wear.