SFH615A-3X007T

Overview

The SFH615A-3X007T is a single-channel transistor output optocoupler manufactured by Vishay Semiconductor Opto Division. It features an NPN phototransistor output and utilizes a surface-mount SMD-4 package. The device provides an isolation voltage of 5300 Vrms. Key electrical parameters include a maximum collector-emitter voltage of 70 V, a maximum collector current of 50 mA, and a forward current rating of 60 mA. The current transfer ratio ranges from 100% to 200%. Forward voltage is specified at 1.65 V, with a maximum collector-emitter saturation voltage of 400 mV. Switching characteristics include a rise time of 3 µs and a fall time of 14 µs.

Feature Summary

• High isolation voltage capability for safe signal transmission between isolated circuits
• Low coupling capacitance design to minimize high-frequency noise interference
• GaAs infrared diode input for efficient optical coupling
• NPN phototransistor output configuration for standard logic interfacing

Applications

• Industrial control systems requiring galvanic isolation
• Signal isolation in measurement and testing equipment
• Power supply feedback loops for voltage regulation
• Communication interface isolation for data transmission

Procurement Notes

Verify the specific suffix X007T corresponds to the required tape-and-reel packaging format when ordering. Confirm that the 100-200% CTR bin matches the circuit design requirements. Ensure the SMD-4 footprint aligns with the PCB layout specifications. Cross-reference the manufacturer datasheet for any updates on RoHS compliance status or recommended soldering profiles prior to procurement.

Selection Notes

Select this component when a surface-mount solution is preferred over through-hole alternatives like the SFH615A-3. The higher isolation voltage of 5300 Vrms distinguishes it from similar Vishay parts offering lower ratings. Consider the 14 µs fall time when designing for high-speed digital signals, as it may limit maximum switching frequencies compared to faster optocouplers. Verify thermal management needs based on the 150 mW power dissipation rating.

Part Context

This part belongs to the SFH615A series of transistor output optocouplers. It serves as a surface-mount equivalent to the through-hole SFH615A-3 variant. The series is characterized by high isolation voltage and low coupling capacitance. Vishay designs these components for reliable performance in industrial and commercial applications requiring robust electrical isolation between input and output stages.

Replacement Considerations

The VO615A-X007T is documented as a recommended alternative. Note that the VO615A-X007T offers a wider CTR range (50-600%) and different switching times. Verify compatibility with existing circuit constraints before substitution.