SFH617A-4XSMT&R

Overview

The SFH617A-4XSMT&R is a surface-mount optocoupler manufactured by Isocom Components 2004 LTD. It features a single channel with an NPN phototransistor output housed in a 4-pin Surface Mount PDIP package. Key electrical parameters include a maximum forward current of 50 mA, an isolation voltage of 5.3 kVrms, and a collector-emitter saturation voltage of 250 mV. The device operates within a temperature range of -55°C to +110°C, with a typical power dissipation of 150 mW.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits
• Utilizes an NPN phototransistor for signal transmission
• Designed for surface-mount assembly processes

Applications

• Industrial control systems requiring galvanic isolation
• Signal coupling in microcontroller interfaces
• Power supply feedback loops

Procurement Notes

Verify the specific suffix XSMT&R against official manufacturer documentation to confirm the exact pin configuration and reel specifications. Ensure compatibility with surface-mount reflow soldering profiles. Cross-reference the part number with authorized distributors to validate authenticity and traceability before procurement.

Selection Notes

Select this component when a compact surface-mount solution is required for single-channel isolation. Consider the 5.3 kVrms isolation rating for safety-critical applications. Evaluate the CTR range of 160% to 320% against load requirements. Confirm that the 50 mA forward current limit meets the driving circuit capabilities.

Part Context

This part belongs to the SFH617A series of transistor-output optocouplers. It serves as a surface-mount alternative to through-hole DIP variants like the SFH617A-4. The series is designed for general-purpose isolation tasks where space constraints favor SMD packaging over traditional leaded formats.

Replacement Considerations

The VO617A-4 is listed as a recommended alternative. Verify pinout compatibility and electrical parameter equivalence before substitution.