SFH600-3X

Overview

The SFH600-3X is a single-channel transistor output optocoupler manufactured by Isocom Components. It features an NPN phototransistor output and utilizes through-hole DIP-6 packaging for standard board mounting. The device provides high isolation capability with a rated insulation voltage of 5300 Vrms, ensuring safe signal transmission across isolated circuits. Key electrical parameters include a forward current rating of 60 mA and a collector-emitter saturation voltage of 400 mV maximum. The component operates within a temperature range of -55°C to +100°C and supports a power dissipation of 150 mW.

Feature Summary

• Provides galvanic isolation between input and output circuits using an infrared LED and NPN phototransistor pair.
• Offers high dielectric strength suitable for protecting sensitive control electronics from high-voltage transients.
• Designed for reliable operation in industrial environments with extended temperature stability.

Applications

• Industrial automation control systems requiring signal isolation
• Power supply feedback loops for voltage regulation
• Microprocessor interface circuits for noise immunity

Procurement Notes

Verify the exact suffix designation against official Isocom documentation, as variations such as SFH600-3 or SFH600-3X may indicate specific lead form or packaging differences. Confirm RoHS compliance status and safety certifications like UL or VDE directly from the manufacturer datasheet before integration into regulated designs.

Selection Notes

Select this component when a robust, single-channel isolation solution with high CTR is required. Ensure the DIP-6 package fits the available PCB footprint and that the 5300 Vrms isolation rating meets the system's safety requirements. Consider thermal management if operating near the upper temperature limit.

Part Context

This part belongs to the SFH600 series of optocouplers, which are widely used in general-purpose isolation applications. Isocom Components manufactures these devices to replace legacy Vishay Semiconductors parts, maintaining pin compatibility and electrical specifications for seamless upgrades in existing designs.

Replacement Considerations

Direct replacements include the Vishay SFH600-3. Verify pinout compatibility and ensure the substitute matches the required isolation voltage and current transfer ratio specifications.