SFH609-4XG

Overview

The SFH609-4XG is a single-channel through-hole optocoupler manufactured by Isocom Components. It features an NPN phototransistor output and utilizes a standard DIP-6 package for PCB mounting. The device provides electrical isolation with a rated voltage of 5300 Vrms. Key electrical parameters include a maximum forward voltage of 1.65V, a maximum input current of 60 mA, and a typical rise time of 2µs. The component supports DC input signals and offers a high current transfer ratio ranging from 200% to 400%, ensuring efficient signal transmission across the isolation barrier.

Feature Summary

• Provides robust galvanic isolation between input and output circuits using infrared light transmission.
• Features a fast switching response characterized by a typical rise time of 2 microseconds.
• Delivers high current transfer efficiency suitable for driving downstream logic or analog loads.

Applications

• Industrial control systems requiring signal isolation
• Communication interface circuits for noise immunity
• Power supply feedback loops

Procurement Notes

Verify that the specific suffix XG corresponds to the required lead frame configuration and compliance standards for your target market. Confirm that the supplier provides valid UL and VDE certification documents, as these approvals are critical for safety-critical applications. Ensure the ordering information matches the exact pinout and packaging style specified in the official datasheet to prevent integration errors during assembly.

Selection Notes

Select this component when high-speed switching and high current transfer ratios are required within a standard DIP package. The SFH609-4XG is appropriate for designs needing strong isolation capabilities combined with rapid signal propagation. Consider the maximum input current limits and thermal characteristics when designing the drive circuitry to ensure reliable operation under varying load conditions.

Part Context

This part belongs to the SFH609 series of transistor-output optocouplers produced by Isocom Components. The series is designed to replace legacy components while meeting modern safety standards. Isocom specializes in providing alternative sources for common commercial optocouplers, often offering enhanced parameter selection to meet specific customer design requirements without compromising on quality or reliability.

Replacement Considerations

Public confirmed substitute part numbers: SFH600-4G, SFH609-3.