VOH260A

Overview

The VOH260A is a high-speed optocoupler manufactured by Vishay Semiconductor Opto Division. It features a single channel with an open-drain output configuration and operates within a temperature range of -40°C to +110°C. Key electrical parameters include a forward current (If) of 20 mA, a forward voltage (Vf) of 1.38 V, and a reverse voltage (Vr) of 5 V. The device supports a data rate of 10 MBd with rise and fall times of 23 ns and 10 ns, respectively. It provides an insulation voltage of 5000 Vrms and can handle an output current of 50 mA with a power dissipation (Pd) of 125 mW.

Feature Summary

• High-speed operation with a 10 MBd data rate for efficient signal transmission
• Integrated phototransistor output providing open-drain logic compatibility
• Robust electrical isolation rated at 5000 Vrms for noise immunity
• Wide operating temperature range suitable for demanding industrial environments

Applications

• Industrial automation control systems requiring galvanic isolation
• Data communication interfaces needing high-speed signal transfer
• Power supply feedback loops for isolated voltage regulation
• Microcontroller input/output isolation in noisy electronic circuits

Procurement Notes

Verify the specific package variant when ordering, as the base model number may correspond to different physical configurations such as DIP-8 or SMD-8 depending on the suffix. Confirm that the required insulation voltage and data rate meet your system specifications before finalizing procurement. Ensure compliance with RoHS directives if applicable to your manufacturing process. Cross-reference the manufacturer part number with distributor catalogs to identify the correct tape-and-reel or tube packaging option.

Selection Notes

Select the VOH260A when a single-channel high-speed isolation solution is required with an open-drain output. Consider this component for applications demanding a 10 MBd data rate and 5000 Vrms isolation strength. Evaluate the 20 mA forward current requirement against your drive circuit capabilities. Compare the 23 ns rise time against system timing constraints to ensure adequate signal integrity. Verify thermal management needs given the 125 mW power dissipation limit.

Part Context

The VOH260A belongs to Vishay's high-speed optocoupler family, designed for applications requiring fast signal propagation and reliable electrical isolation. It utilizes an integrated photodetector and logic gate architecture to achieve high data rates. This component is part of a broader series that includes dual-channel variants like the VOH263A, offering flexibility for multi-channel isolation needs while maintaining consistent performance characteristics across the product line.

Replacement Considerations

The VOH260A-X006 is a verified equivalent variant featuring the same electrical specifications but packaged in an 8-pin DIP format. The VOH260A-X017T serves as another confirmed substitute, offering identical performance metrics in an 8-pin SMD package. These alternatives maintain the 10 MBd data rate and 5000 Vrms isolation rating, ensuring functional compatibility in existing designs.