SFH600-3

Overview

The SFH600-3 is a single-channel transistor output optocoupler featuring a GaAs LED emitter and a silicon planar phototransistor detector. It provides an isolation voltage of 5300 Vrms. The device operates within a temperature range of -55°C to +100°C. Key electrical parameters include a maximum collector-emitter voltage of 70 V, a maximum collector current of 100 mA, and a typical forward voltage of 1.65 V at 60 mA. The current transfer ratio ranges from 160% to 320%. Rise and fall times are specified as 4 µs and 14 µs, respectively.

Feature Summary

• Optical coupling between a GaAs infrared LED and a silicon planar phototransistor for signal transmission.
• High insulation capability with a rated isolation voltage of 5300 Vrms.
• Includes a base terminal on the phototransistor output for enhanced sensitivity control.

Applications

• Industrial control systems requiring galvanic isolation
• Signal isolation in measurement equipment
• Power supply feedback circuits

Procurement Notes

Verify component authenticity through official Vishay Semiconductor Opto Division channels or authorized distributors. Confirm that the part number matches SFH600-3 exactly, noting its obsolete status may affect availability. Request original datasheets and compliance certificates to ensure adherence to RoHS standards and material specifications before finalizing procurement decisions.

Selection Notes

Select this component when high isolation voltage and moderate speed are required for DC signal coupling. Consider the 160-320% current transfer ratio for gain requirements. Evaluate the PDIP-6 package constraints against PCB layout needs. Ensure operating temperatures remain within the -55°C to +100°C range for reliable performance in harsh environments.

Part Context

The SFH600 series belongs to Vishay's family of transistor output optocouplers designed for general-purpose isolation applications. These devices utilize direct optical coupling without additional amplification stages. The SFH600-3 variant specifically offers a higher current transfer ratio compared to lower CTR models, making it suitable for applications demanding robust signal transmission across isolation barriers.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status of the SFH600-3, engineers should consult Vishay's official replacement guides or contact technical support directly for validated cross-reference options.