SFH601-3G

Overview

The SFH601-3G is a single-channel transistor output optocoupler manufactured by Vishay Semiconductors, distributed by Isocom Components. It features an NPN phototransistor output housed in a DIP-6 through-hole package. Key electrical parameters include a maximum collector-emitter voltage of 100 V and a maximum collector current of 50 mA. The device provides an isolation voltage of 5000 Vrms with a typical forward voltage of 1.65 V at a forward current of 60 mA. The current transfer ratio ranges from 100% to 200%. Operating temperatures span from -55°C to +100°C, with a power dissipation rating of 150 mW.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits via a single-channel phototransistor configuration.
• Features a standard DIP-6 through-hole package suitable for general-purpose PCB mounting.
• Delivers a defined current transfer ratio range to ensure reliable signal transmission across the isolation barrier.

Applications

• General purpose signal isolation in industrial control systems
• Interface circuits for microprocessors and logic gates
• Power supply feedback loops requiring galvanic isolation

Procurement Notes

Verify that the suffix 'G' denotes the specific lead form or packaging variant required for your assembly process, as this may affect mechanical fit or handling compared to standard versions. Confirm RoHS compliance status directly with the manufacturer datasheet, as regulatory declarations can vary by production batch and region. Ensure the supplier is an authorized distributor to guarantee component authenticity and traceability. Cross-reference the specific ordering code with the official Vishay Semiconductors catalog to confirm availability and any recent product change notifications.

Selection Notes

Select this component when a single-channel isolation solution with moderate current transfer requirements is needed. The 100 V collector-emitter voltage rating suits low-to-medium voltage switching applications. Consider the DIP-6 package for manual assembly or legacy board designs. Evaluate the 100-200% CTR range against your circuit's noise immunity needs. Compare against higher-speed variants if application timing constraints exceed the phototransistor response capabilities.

Part Context

This part belongs to the SFH601 series of transistor output optocouplers from Vishay Semiconductors. The series offers various current transfer ratio grades and lead forms to accommodate different design specifications. The SFH601-3 specifically targets applications requiring a standard CTR range. Related parts in the family include variants with different CTRs such as SFH601-4 or surface-mount equivalents like SFH601-3X009.

Replacement Considerations

Direct substitutes within the same series include SFH601-3X009 for surface mount applications. For through-hole replacements with different CTR characteristics, consider SFH601-4. Verify pinout compatibility and thermal ratings before substituting with generic equivalent optocouplers.