VO4156H-X007

Triac, SCR Output Optoisolators Overview

The VO4156H-X007 is a Triac and SCR output optocoupler from Vishay Semiconductors, featuring a zero-crossing PhotoTriac. It provides 5300 Vrms insulation voltage and operates within a -55°C to +100°C temperature range. The device supports a maximum continuous output current of 300 mA and a peak off-state voltage (VDRM) of 600 V. Key electrical parameters include a forward current (If) of 60 mA, a forward voltage (Vf) of 1.2 V, and a power dissipation (Pd) of 600 mW. The trigger current is specified at 2 mA, with a zero-crossing voltage of 20 V.

Triac, SCR Output Optoisolators Feature Summary

• Integrates a GaAs IR LED optically coupled to a photosensitive zero-crossing TRIAC for precise AC load control.
• Provides high isolation capability with 5300 Vrms insulation voltage between input and output circuits.
• Incorporates internal zero-crossing circuitry to minimize electromagnetic interference during switching events.

Triac, SCR Output Optoisolators Applications

• Solid-state relays requiring low-noise AC switching
• Motor speed control circuits for AC loads
• Lighting dimmer applications

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix 'X007' against the official datasheet to confirm package type and tape/reel specifications. Confirm RoHS compliance status directly with the manufacturer or authorized distributors, as environmental declarations may vary by production batch. Ensure the zero-crossing variant matches the application requirements, distinguishing it from non-zero-crossing models in the same series.

Triac, SCR Output Optoisolators Selection Notes

Select this component when precise timing of AC load activation is required to reduce electrical noise. The 600 V off-state voltage rating suits standard mains voltage applications. Compare the 2 mA trigger current requirement against the driving circuit capabilities. Consider the 6-SMD gull-wing package for surface mount assembly constraints and thermal management needs within the specified operating temperature range.

Triac, SCR Output Optoisolators Part Context

This part belongs to the VO415x series of Triac and SCR output optocouplers manufactured by Vishay Semiconductor Opto Division. The series includes variants with different trigger currents and zero-crossing configurations. The VO4156H-X007 specifically denotes the zero-crossing version with a 2 mA trigger current, packaged in a 6-SMD configuration.

Triac, SCR Output Optoisolators Replacement Considerations

VO4156D-X007T: Similar zero-crossing triac output optocoupler with a 1.6 mA trigger current instead of 2 mA.

Triac, SCR Output Optoisolators FAQ

What is the function of the zero-crossing circuit in this device?

The internal zero-crossing circuit ensures that the TRIAC turns on only when the AC line voltage is near zero, minimizing inrush current and electromagnetic interference.

What is the maximum off-state voltage rating for the VO4156H-X007?

The device has a maximum off-state voltage (VDRM) rating of 600 V.