VISHAY VOM160NT Phototriac Optocoupler, 4-Pin SOP, 3.75kV Isolation

The VISHAY VOM160NT is a high-performance 4-pin phototriac output optocoupler, designed to provide reliable electrical isolation and control in a wide range of electronic applications. It features an AlGaAs (Aluminium Gallium Arsenide) infrared emitting diode (IRED) that is optically coupled to a photosensitive non-zero crossing triac. This configuration ensures robust noise immunity and safe galvanic isolation between low-voltage control circuits and high-voltage AC mains.

This component is engineered for demanding environments, offering a high static dV/dt rating of greater than 0.5 kV/µs, which provides excellent immunity against voltage transients. With an on-state RMS current of 70 mA, it is capable of driving triacs, solid-state relays, and other loads directly. Key electrical specifications include a forward current of 60 mA and a reverse voltage of 6 V, ensuring stable operation within its designed parameters.

Primary Applications

The VOM160NT is ideally suited for use in triac drives for motor speed control, forming the heart of solid-state relays for switching AC loads, and within various office automation equipment. Its reliable isolation makes it a critical component in consumer electronics, industrial control systems, and motor drive control circuits where safety and signal integrity are paramount.

Key Specifications & Features

• Optocoupler Type: Phototriac output, non-zero crossing.
• Isolation Voltage: A high 3.75 kV RMS provides excellent protection and safety.
• Package: Compact Surface-Mount Device (SMD) in an SOP (Small Outline Package) style.
• Peak Repetitive Off-State Voltage: 600 V, suitable for controlling standard mains voltages.
• High dV/dt: >0.5 kV/µs for superior noise rejection in electrically noisy environments.
• On-State Current: 70 mA RMS.
• Forward Current: 60 mA.
• Reverse Voltage: