SFH6721T

Logic Output Optoisolators Overview

The SFH6721T is a single-channel high-speed optocoupler manufactured by Vishay Semiconductor Opto Division. It features a push-pull output stage capable of data rates up to 5 MBd. The device provides an isolation voltage of 4000 Vrms and operates within a temperature range of -40°C to +100°C. Packaged in an 8-SOIC surface-mount format, it utilizes a standard LED input with a forward current of 10 mA and a forward voltage of 1.4 V. The output stage delivers a maximum output current of 50 mA with rise and fall times of 23 ns and 7 ns respectively.

Logic Output Optoisolators Feature Summary

• Push-pull output architecture for enhanced signal integrity
• High-speed data transmission capability at 5 MBd
• Robust electrical isolation between input and output circuits

Logic Output Optoisolators Applications

• Industrial communication interfaces
• Data acquisition systems requiring galvanic isolation
• Power supply feedback loops

Logic Output Optoisolators Procurement Notes

Verify component authenticity through authorized distributors as the SFH6721T is listed as obsolete. Confirm package integrity and pin alignment upon receipt. Check for RoHS compliance status if required for specific regulatory environments. Ensure storage conditions meet manufacturer specifications to prevent degradation of the optical components before assembly.

Logic Output Optoisolators Selection Notes

Select this component when a push-pull output is necessary for driving subsequent logic stages directly without additional pull-up resistors. Consider the 5 MBd speed limit against system requirements. Evaluate the 4000 Vrms isolation rating against safety standards. Compare thermal dissipation characteristics within the SOIC-8 package against available board space and cooling options.

Logic Output Optoisolators Part Context

This part belongs to Vishay's high-speed optocoupler family designed for digital isolation applications. It replaces older transistor-output variants where faster switching speeds were required. The SOIC-8 package allows for compact PCB layouts compared to wider DIP packages. It serves as a bridge between low-voltage control logic and higher-voltage power stages in noisy environments.

Logic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material. As the component is obsolete, verify compatibility with alternative Vishay models such as the SFH6741 series, ensuring pinout and electrical parameters match the original design requirements.