4N37 Vis=1500V Vceo=30v Optron

The 4N37 is a single-channel phototransistor output optocoupler, delivering robust electrical isolation and reliable signal transfer for your critical applications. This device features a gallium arsenide infrared LED and a silicon NPN phototransistor, all within a convenient 6-pin DIP package.

General Features

- Single-channel optocoupler

- 6-pin DIP package

- Gallium arsenide infrared LED

- Silicon NPN phototransistor

Key Advantages

- Isolation test voltage: 5000 Vrms

- Interfaces seamlessly with common logic families

- Low input-output coupling capacitance (less than 0.5 pF)

- High current transfer ratio (CTR)

- Safety regulatory approvals: UL, cUL, DIN EN 60747-5-2 (VDE 0884)/DIN EN 60747-5-5, BSI, FIMKO, CQC

Typical Applications

- AC mains detection

- Reed relay driving

- Switch mode power supply feedback

- Telephone ring detection

- Logic ground isolation

- Logic coupling with high-frequency noise rejection

- Power supply regulators

- Digital logic inputs

- Microprocessor inputs

- General Purpose Switching Circuits

- Interfacing and coupling systems of different potentials and impedances

- Regulation Feedback Circuits

- Monitor & Detection Circuits

- Solid State Relays

Core Benefits

- Provides essential electrical isolation between input and output

- Protects sensitive circuits from potentially damaging high voltages and noise

- Enables efficient signal transfer between circuits operating at different voltage levels

- Offers exceptional reliability and an extended operational life

- RoHS compliant