VOT8121AM-T

Overview

The VOT8121AM-T is a single-channel optoisolator featuring a phototriac output, manufactured by Vishay Semiconductor Opto Division. It provides an isolation voltage of 3750Vrms and supports a maximum on-state current (It RMS) of 100 mA with a blocking voltage of 800 V. The device operates within a temperature range of -55°C to 110°C and utilizes a flat 2.0 mm SOP-4 surface mount package. Key electrical characteristics include a typical forward voltage of 1.15 V, a maximum DC forward current of 50 mA, and a turn-on time of 30µs.

Feature Summary

• High static dV/dt rating of 1000 V/μs for noise immunity
• High input sensitivity with a maximum LED trigger current of 10 mA
• Flat 2.0 mm SOP-4 package design for compact surface mounting

Applications

• Solid-state relay control circuits
• Motor drive switching applications
• Industrial process control systems

Procurement Notes

Verify the specific suffix against official Vishay documentation to confirm package dimensions and certification status. Ensure the selected variant matches the required isolation voltage and thermal specifications for the target application environment.

Selection Notes

Select this component for applications requiring high input sensitivity and robust noise immunity in a compact form factor. Confirm that the 100 mA on-state current capability meets the load requirements and that the SOP-4 package fits the PCB layout constraints.

Part Context

This part belongs to the VOT8121 series of triac output optocouplers from Vishay. It shares core functional attributes with variants like the VOT8121AM-VT but may differ in packaging or certification details. The series is designed for general-purpose AC load switching where galvanic isolation is critical.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.