VISHAY 4N25 Optocoupler 1 Channel DIP-6 60mA 5kV Isolation

The VISHAY 4N25 is an industry-standard single-channel optocoupler, designed to provide electrical isolation and signal transfer between circuits. It features a gallium arsenide infrared LED optically coupled to a silicon NPN phototransistor with a base connection, offering reliable performance in a wide range of applications.

This component provides a high isolation test voltage of 5000 V_RMS, ensuring safe operation in environments where electrical separation is critical. It interfaces seamlessly with common logic families and boasts a low input-output coupling capacitance of less than 0.5 pF, which contributes to its faster switching speeds compared to standard couplers.

The 4N25 is housed in a classic 6-pin DIP (Dual In-line Package), making it compatible with standard breadboards and through-hole PCB designs. Its robust construction and proven design make it a trusted choice for engineers requiring dependable circuit isolation.

Key Features & Applications

• High Isolation: 5000 V_RMS isolation test voltage provides excellent protection against voltage transients.
• Fast Switching: Enhanced performance over standard couplers for responsive signal transmission.
• Wide Compatibility: Interfaces directly with common logic families for easy integration.
• Low Capacitance: Input-output coupling capacitance under 0.5 pF minimises noise and crosstalk.
• Ideal for use in: Power management systems, communications and networking equipment, and motor drive control circuits.

This optocoupler is a fundamental component for adding safety and noise immunity to electronic designs, ensuring signals are transferred accurately without a direct electrical connection.