SFH600-3XG

Overview

The SFH600-3XG is a single-channel through-hole optocoupler manufactured by Isocom Components. It features an NPN phototransistor output housed in a standard DIP-6 package. The device provides high isolation with a rated voltage of 5300 Vrms. Electrical characteristics include a maximum forward voltage of 1.65V and a maximum input current of 60 mA. The collector-emitter breakdown voltage is specified at 70 V, while the collector current rating reaches 100 mA. The typical rise time is 4 µs and the fall time is 14 µs. Current transfer ratios range from 160% to 320%, ensuring reliable signal transmission across the isolation barrier.

Feature Summary

• Provides galvanic isolation between input and output circuits using an infrared LED and NPN phototransistor pair.
• Designed for through-hole mounting within a compact six-pin dual in-line package structure.
• Capable of handling significant collector currents up to 100 mA for robust switching applications.

Applications

• Industrial control systems requiring electrical isolation
• Signal transmission across isolated ground planes
• Microprocessor interface circuits

Procurement Notes

Verify that the specific suffix XG aligns with the required lead frame configuration and compliance standards for your target market. Confirm that the manufacturer designation matches Isocom Components rather than other entities using similar base part numbers. Ensure the procurement documentation explicitly references the NPN phototransistor output type and the DIP-6 form factor to avoid substitution errors with different output devices or packages.

Selection Notes

Select this component when a single channel of isolation is sufficient for the circuit design. The NPN phototransistor output is suitable for standard logic interfacing where moderate speed is acceptable. Consider the 5300 Vrms isolation rating for applications demanding high safety margins. Evaluate the 160% to 320% current transfer ratio against the driving capability of the input source to ensure proper saturation of the output transistor under all operating conditions.

Part Context

This part belongs to the SFH600 series of optocouplers, which are widely recognized for their reliability in general-purpose isolation tasks. The SFH600-3 variant specifically denotes the NPN phototransistor output configuration. Isocom Components produces this part as a direct replacement for legacy industrial standard models, maintaining compatibility with existing PCB footprints and electrical requirements found in established equipment designs.

Replacement Considerations

SFH600-3