VOFD341A-X018T

Overview

The VOFD341A-X018T is a single-channel MOSFET output optocoupler manufactured by Vishay Semiconductor Opto Division. It integrates an infrared LED with a high-speed MOSFET output stage, packaged in a 6-SO stretched surface-mount enclosure. The device provides 5000Vrms isolation voltage and supports a peak output current of 3A, with continuous drive currents of 2.5A for both high and low states. Key electrical parameters include a maximum propagation delay of 200ns, typical rise/fall times of 35ns, and a minimum common-mode transient immunity of 35kV/µs. It operates within a temperature range of -40°C to +125°C and requires an output supply voltage between 15V and 30V.

Feature Summary

• High-speed optical coupling with rail-to-rail MOSFET output stages for efficient gate driving
• Robust insulation performance with 5000Vrms isolation voltage rating
• High common-mode transient immunity to prevent false triggering in noisy environments
• Extended operating temperature range suitable for demanding industrial applications

Applications

• IGBT and MOSFET gate driver circuits
• Industrial motor control systems
• Power supply feedback loops
• Solid-state relay implementations

Procurement Notes

Verify the specific suffix X018T corresponds to the required tape-and-reel packaging configuration. Confirm that the 6-SO stretched package dimensions align with your PCB footprint requirements. Ensure the 5000Vrms isolation rating meets the safety standards applicable to your target market, such as UL, VDE, or cUL certifications listed in the official datasheet.

Selection Notes

Select this component when high-speed switching and robust noise immunity are critical for gate drive applications. The 3A peak current capability supports medium-power IGBT and MOSFET drivers. Consider the 6-SO stretched package for improved creepage distance compared to standard SO-6 packages. Verify that the input forward current limits and output supply voltage ranges fit within your system's power budget and signal levels.

Part Context

This part belongs to the VOFD34xA series of MOSFET output optocouplers designed specifically for driving power switches. Unlike transistor-output optocouplers, these devices offer faster switching speeds and higher current drive capabilities, making them ideal for modern high-frequency power conversion topologies. The series emphasizes reliability and isolation performance for industrial and automotive-grade environments.

Replacement Considerations

Check for direct replacements within the VOFD34xA family, such as VOFD343A variants, which may share similar pinouts and electrical characteristics. Ensure any substitute maintains the same 6-SO stretched package and 5000Vrms isolation rating. Verify compatibility with existing PCB layouts and thermal management strategies before transitioning to alternative part numbers.