VOT8125AG-V

Overview

The VOT8125AG-V is a Triac and SCR output optocoupler manufactured by Vishay Semiconductor Opto Division. It features a non-zero crossing phototriac output capable of blocking up to 800V in the off state. The device provides high isolation voltage of 5000Vrms between input and output circuits. It is housed in a DIP-6 package suitable for through-hole mounting. Key electrical parameters include a maximum forward current of 50 mA, a typical forward voltage of 1.2V, and an operating temperature range from -55°C to +110°C.

Feature Summary

• Non-zero crossing triac output design for general phase control applications
• High insulation voltage rating of 5000Vrms for enhanced safety isolation
• Robust off-state voltage capability of 800V for mains switching
• Wide operating temperature range supporting industrial environments

Applications

• Solid-state relays for AC load switching
• Motor control circuits requiring isolation
• Industrial process control systems
• General purpose AC power switching modules

Procurement Notes

Verify the specific suffix 'V' indicates lead-free and RoHS compliance status as per Vishay documentation. Confirm the DIP-6 package variant matches your PCB footprint requirements. Ensure the non-zero crossing characteristic aligns with your noise immunity needs rather than zero-crossing types. Check for any recent product change notices regarding bond wire diameter or manufacturing site changes that may affect long-term supply stability.

Selection Notes

Select this component when high isolation voltage is critical but precise zero-crossing timing is not required. The non-zero crossing feature allows for faster turn-on response compared to zero-crossing variants, which is beneficial for certain motor control or heating applications. Consider the DIP-6 package constraints against available board space. Evaluate the 800V blocking voltage against peak line voltages to ensure adequate margin under transient conditions.

Part Context

This part belongs to Vishay's VOT8xxx series of phototriac optocouplers designed for AC power control. Unlike zero-crossing models such as the VOT8024AG-V, this variant triggers immediately upon LED activation. It serves as a direct interface between low-voltage logic circuits and high-voltage AC loads, providing galvanic isolation while maintaining signal integrity across the barrier.

Replacement Considerations

Direct substitutes within the same family include other VOT8125 variants with different packaging options. Cross-referencing with Vishay's official substitution guide is recommended to verify pin compatibility and electrical parameter equivalence. Ensure any replacement maintains the 5000Vrms isolation rating and 800V off-state voltage.