Vishay 4N35 Optocoupler Transistor Output DIP 6-Pin 50 mA

The Vishay 4N35 Optocoupler is a through-hole, phototransistor output device with a 50 mA forward current rating and a 5000 Vrms isolation test voltage.

Presented in a standard 6-pin DIP package, the 4N35 provides electrical isolation and signal transfer between circuit sections. Each unit combines a gallium arsenide infrared LED optically coupled to a silicon NPN phototransistor, allowing light-based signal transmission between the input and output stages.

Key Features

• Gallium arsenide infrared LED optically coupled to a silicon NPN phototransistor
• Accessible base connection on the phototransistor for control over switching speed and sensitivity
• Minimum current transfer ratio (CTR) of 100%
• Isolation test voltage of 5000 Vrms
• Forward current rating of 50 mA
• Operating temperature range from -55°C to 100°C

Applications

This optocoupler is used to isolate low-voltage control circuits from high-voltage AC mains, including AC mains detection and switch mode power supply feedback loops. It is also used in telecommunications for telephone ring detection, in industrial controls for driving reed relays, and in digital systems for logic coupling with high-frequency noise rejection. Its ability to separate grounds helps prevent ground loops and protects sensitive logic circuitry.

Specifications

• Package: 6-pin DIP, through-hole
• Weight: 5 g
• Dimensions: 3.3 (width) × 1.5 (depth) × 4.3 (height), units not specified

Choose the Vishay 4N35 Optocoupler for circuit designs requiring electrical isolation and signal transfer between control and high-voltage sections, with a stated 5000 Vrms isolation test voltage and 50 mA forward current rating.