SFH608-3X007

Overview

The SFH608-3X007 is a single-channel transistor output optocoupler manufactured by Vishay Semiconductor Opto Division. It features an NPN phototransistor with a base terminal, housed in a 6-SMD surface-mount package. The device provides high isolation voltage of 5300 Vrms and supports a maximum collector current of 50 mA. Key electrical parameters include a forward voltage of 1.5 V at 50 mA input, a CTR range of 100% to 200%, and switching times of 3.5 μs rise and 5 μs fall. It operates within a temperature range of -55°C to +100°C.

Feature Summary

• Integrates a gallium arsenide infrared-emitting diode with an NPN phototransistor for signal isolation.
• Includes a dedicated base terminal on the output transistor to enhance switching speed and control saturation.
• Designed for high current transfer ratio performance at low input currents.

Applications

• Industrial automation systems requiring galvanic isolation
• Solid-state relay driver circuits
• Communication interface isolation

Procurement Notes

Verify the specific suffix 'X007' to confirm the 6-SMD package configuration and lead frame material. Ensure compatibility with surface-mount assembly processes. Confirm that the 100-200% CTR range meets the design requirements for the intended load conditions. Check for RoHS compliance status as per the latest manufacturer documentation before finalizing procurement.

Selection Notes

Select this component when high-speed switching is required alongside standard isolation levels. The integrated base allows for faster turn-off times compared to baseless variants. Consider the 6-SMD footprint for space-constrained PCB layouts. Verify that the 5300 Vrms isolation rating aligns with safety standards for the application environment.

Part Context

This part belongs to the SFH608 series of Vishay's optocouplers, which are characterized by high CTR and fast response times. The SFH608-3X007 specifically denotes the surface-mount variant with a base-driven output, distinguishing it from through-hole or baseless models within the same family.

Replacement Considerations

SFH608-3X017 (similar SMD variant)

FAQ

What is the purpose of the base terminal in the SFH608-3X007?

The base terminal allows for external control of the phototransistor's saturation and switching speed, enabling faster response times than baseless configurations.

What is the typical current transfer ratio for this model?

The current transfer ratio ranges from 100% to 200% under specified test conditions.