SFH617A-4X001

Overview

The SFH617A-4X001 is a single-channel transistor output optocoupler manufactured by Vishay Semiconductor Opto Division. It features an NPN phototransistor output housed in a PDIP-4 package for through-hole mounting. The device provides high isolation with a rated insulation voltage of 5300 Vrms. Key electrical parameters include a maximum collector-emitter voltage of 70 V, a maximum collector current of 50 mA, and a forward current rating of 60 mA. The current transfer ratio ranges from 160% to 320%, with a typical forward voltage of 1.65 V. Operating temperatures span from -55°C to +110°C.

Feature Summary

• Provides galvanic isolation between input and output circuits via an internal LED and phototransistor pair.
• Features high insulation capability rated at 5300 Vrms for safe signal transmission across potential differences.
• Delivers linear current transfer characteristics dependent on the forward input current.

Applications

• Industrial control systems requiring isolated signal interfaces
• Power supply feedback loops for voltage regulation
• Microcontroller interface circuits for noise immunity

Procurement Notes

Verify the specific suffix 4X001 against official Vishay documentation to confirm packaging configuration and compliance status. Ensure the procurement channel sources genuine components from authorized distributors to guarantee parameter accuracy and reliability standards are met for the specified industrial grade temperature range.

Selection Notes

Select this component when high isolation voltage and moderate speed are required for DC or low-frequency signal coupling. Compare the 160-320% CTR range against circuit gain requirements. Consider the PDIP-4 package constraints for PCB layout and verify that the 70 V collector-emitter voltage exceeds the maximum load voltage in the target application design.

Part Context

This part belongs to the SFH617 series of transistor output optocouplers. The series is designed for general-purpose isolation applications. The SFH617A variant specifically denotes the performance binning for current transfer ratio and switching times. The 4X001 suffix indicates the specific tape and reel or tube packaging format provided by the manufacturer.

Replacement Considerations

Officially documented equivalent part numbers include VO617A-4 and SFH617A-4. Verify pinout compatibility and electrical parameter tolerances before substitution. Cross-referencing datasheets is required to ensure isolation voltage and thermal ratings match the original design specifications.