VOH263A-X001

Overview

The VOH263A-X001 is a high-speed dual-channel optocoupler manufactured by Vishay Semiconductor Opto Division. It features an open-drain logic output configuration with a data rate of 10 MBd and a common-mode transient immunity (CMTI) of 15 kV/µs. The device provides 5000 Vrms isolation voltage and operates within a temperature range of -40°C to +110°C. Electrical specifications include a forward current of 20 mA, forward voltage of 1.38 V, reverse voltage of 5 V, and output current of 50 mA. Rise and fall times are both 11 ns, with a power dissipation of 85 mW. It is housed in an 8-pin DIP package.

Feature Summary

• Dual-channel architecture for simultaneous signal isolation
• High-speed operation supporting 10 MBd data rates
• Robust noise immunity with 15 kV/µs CMTI rating
• Wide operating temperature range for industrial environments

Applications

• Industrial automation control systems
• Communication interface isolation
• Power supply feedback loops
• Microcontroller input/output isolation

Procurement Notes

Verify the specific suffix designation against official Vishay documentation to ensure correct packaging and tape-and-reel specifications. Confirm RoHS compliance status and lead times directly with authorized distributors. Ensure the procurement channel is an authorized partner to guarantee component authenticity and traceability. Check for any recent product change notifications regarding manufacturing sites or materials.

Selection Notes

Select this component when dual-channel isolation with high-speed digital signaling is required. The open-drain output necessitates external pull-up resistors for proper logic level generation. Consider the 5000 Vrms isolation barrier for safety-critical applications. Evaluate thermal management requirements given the 85 mW power dissipation limit in enclosed spaces.

Part Context

This part belongs to Vishay's high-speed optocoupler family, designed for demanding digital communication applications. It complements single-channel variants like the VO0601 series by offering dual isolation paths in a standard DIP footprint. The series emphasizes fast response times and high noise immunity for reliable data transmission across isolation barriers.

Replacement Considerations

Direct substitutes may include other Vishay dual-channel high-speed optocouplers with compatible pinouts and electrical ratings. Verify equivalent CMTI and data rate specifications before substitution. Cross-reference with industry-standard alternatives ensuring matching isolation voltage and output configuration.

FAQ

What is the maximum common-mode transient immunity?

The VOH263A-X001 supports a minimum CMTI of 15 kV/µs.

Does the device require external components for operation?

Yes, the open-drain output requires external pull-up resistors to function correctly as a logic interface.