SFH601-3X006

Overview

The SFH601-3X006 is a single-channel transistor output optocoupler manufactured by Vishay Semiconductor Opto Division. It features an NPN phototransistor with a base connection for enhanced switching speed and noise immunity. The device provides high isolation voltage of 5000 Vrms (or 5300 Vrms per specific listings) between input and output circuits. Key electrical parameters include a forward current of 60 mA, forward voltage of 1.65 V, and a collector-emitter saturation voltage of 400 mV. The current transfer ratio ranges from 100% to 200%. It operates within a temperature range of -55°C to +100°C and is housed in a DIP-6 package.

Feature Summary

• Integrated NPN phototransistor with accessible base terminal for improved performance
• High dielectric isolation capability between input LED and output transistor
• Robust thermal stability suitable for wide industrial operating environments

Applications

• Wired networking equipment signal isolation
• Power delivery system control interfaces
• PC and notebook computer peripheral isolation

Procurement Notes

Verify the exact isolation rating specification, as sources cite both 5000 Vrms and 5300 Vrms. Confirm component availability status, as some distributors list this part as obsolete while others indicate stock presence. Ensure the DIP-6 package dimensions match the required PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component when base-controlled switching speed is critical for the application. The available base connection allows for external biasing or faster discharge of the phototransistor junction capacitance. Compare the CTR range against the driving circuit requirements to ensure reliable logic level translation across the specified temperature range.

Part Context

This part belongs to the SFH601 series of transistor output optocouplers. It shares the same physical DIP-6 footprint and basic electrical characteristics with variants like SFH601-3 and SFH601-4, differing primarily in the guaranteed current transfer ratio bins. The X006 suffix typically denotes specific packaging or tape-and-reel configurations, though tube packaging is also documented.

Replacement Considerations

Direct substitutes include SFH601-3 and SFH601-4, which share identical pinouts and mechanical dimensions. Verify that the replacement variant's current transfer ratio meets the minimum design threshold. Other generic NPN phototransistor optocouplers may require circuit redesign due to differences in isolation voltage or switching speed.