VOT8121AB-V

Overview

The VOT8121AB-V is a single-channel optoisolator manufactured by Vishay Semiconductor Opto Division, featuring a Triac output. It provides an isolation voltage of 5300Vrms and supports a maximum RMS on-state current of 100 mA. The device operates within a temperature range of -55°C to +110°C and utilizes a 4-SMD surface-mount package. Key electrical parameters include a peak repetitive off-state voltage of 800 V, a typical forward voltage of 1.2 V, and a minimum static dV/dt rating of 1 kV/µs.

Feature Summary

• High-voltage insulation capability with 5300Vrms isolation rating for safe signal transmission across potential barriers.
• Robust noise immunity characterized by a high static dV/dt rating of 1 kV/µs to prevent false triggering.
• Wide operating temperature range from -55°C to +110°C suitable for demanding industrial environments.

Applications

• Solid-state relay driver circuits
• Industrial motor control systems
• Power supply feedback loops

Procurement Notes

Verify the specific suffix 'V' against the manufacturer's official datasheet to confirm pinout compatibility and packaging specifications. Ensure that the selected component meets all required safety certifications such as UL, cUL, and VDE for your target market. Cross-reference the RoHS status and moisture sensitivity level with your assembly process requirements before finalizing procurement.

Selection Notes

Select this component when high isolation voltage and robust noise immunity are critical for the application. The 100 mA output current capacity is suitable for driving low-power loads or triggering larger thyristors. Consider the 4-SMD package size for space-constrained printed circuit board designs requiring surface-mount technology integration.

Part Context

This part belongs to the VOT8121 series of Triac output optocouplers designed for general-purpose isolation applications. The series offers various insulation ratings and package options to accommodate different design constraints while maintaining consistent performance characteristics for switching and signal transfer tasks in electronic systems.

Replacement Considerations

Consult the official Vishay datasheet for direct pin-compatible substitutes within the same family. Verify that any alternative component matches the 5300Vrms isolation rating and 100 mA current handling capabilities to ensure functional equivalence without redesigning the host circuit.