VOH1016AB-VT

Overview

The VOH1016AB-VT is a high-speed optocoupler from Vishay Semiconductor Opto Division, featuring a single channel with an open collector phototransistor output. It supports data rates up to 2 MHz (NRZ) and includes Schmitt-Trigger functionality for noise immunity. The device offers robust electrical isolation with a maximum isolation voltage of 5000 Vrms and a common-mode transient immunity (CMTI) of 10 kV/µs. Packaged in a compact 6-SMD configuration, it operates within a temperature range of -40°C to +100°C. Key electrical parameters include a forward current of 4 mA, forward voltage of 1.1 V, rise time of 50 ns, fall time of 40 ns, reverse voltage of 6 V, output current of 50 mA, and power dissipation of 250 mW.

Feature Summary

• High data rate capability up to 2 MHz NRZ
• Schmitt-Trigger input for noise immunity
• Robust isolation with 5000 Vrms rating
• High common-mode transient immunity of 10 kV/µs

Applications

• Digital signal isolation in noisy environments
• Industrial communication interfaces
• Microcontroller input/output isolation
• Power supply feedback loops

Procurement Notes

Verify the specific suffix 'VT' corresponds to the tape and reel packaging format required for automated assembly processes. Confirm that the 2 MHz data rate specification aligns with your system's timing requirements, as some sources may cite 1 MBd for similar variants. Ensure the 6-SMD package footprint matches your PCB design constraints. Check RoHS compliance status if restricted substances are a concern for your manufacturing process.

Selection Notes

Select this component when high-speed digital isolation is required alongside strong noise rejection capabilities. The Schmitt-Trigger input makes it suitable for applications with slow or noisy input signals. Consider the 10 kV/µs CMTI for systems with rapid switching transients. Compare against standard phototransistor outputs if logic-level compatibility is critical, as this device provides a defined output state through its trigger mechanism.

Part Context

This part belongs to Vishay's high-speed optocoupler family, designed for demanding digital isolation applications. It shares architectural similarities with other VOH series devices but distinguishes itself through enhanced speed and integrated Schmitt-Trigger circuitry. The 6-SMD package allows for space-constrained designs while maintaining high isolation performance standards required in modern electronic systems.

Replacement Considerations

Direct substitutes may include other Vishay VOH series parts with compatible pinouts and electrical characteristics. Verify that any replacement maintains the 5000 Vrms isolation rating and 2 MHz data rate. Ensure the output type remains open collector phototransistor to maintain circuit compatibility without requiring external pull-up resistor adjustments.