SFH615A-3X007

Overview

The SFH615A-3X007 is a single-channel transistor output optocoupler manufactured by Vishay Semiconductor Opto Division. It features an NPN phototransistor output and utilizes a GaAs infrared diode for signal transmission. The device is housed in a surface-mount SMD-4 package. Key electrical parameters include a minimum current transfer ratio of 100% and a maximum of 200%. It supports a maximum forward current of 60 mA with a forward voltage of 1.65 V. The unit provides an isolation voltage of 5300 Vrms and can withstand a maximum collector-emitter voltage of 70 V. The maximum collector current is rated at 50 mA, with a 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 of 5300 Vrms for safe circuit separation
• Wide current transfer ratio range from 100% to 200% for reliable signal coupling
• Low coupling capacitance design to minimize high-frequency interference

Applications

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

Procurement Notes

Verify the specific suffix X007 corresponds to the required tape-and-reel packaging configuration when ordering. Confirm that the SMD-4 footprint matches the target PCB layout dimensions. Ensure the supplier provides official datasheets confirming the 100-200% CTR binning. Check RoHS compliance status against current regulatory requirements for the destination market. Validate thermal performance specifications if operating near the upper temperature limits.

Selection Notes

Select this component when a surface-mount form factor is required for space-constrained designs. Choose the SFH615A-3X007 over through-hole variants like VO615A-3 when automated assembly processes are utilized. Consider the 5300 Vrms isolation rating for applications demanding robust safety barriers between low-voltage control circuits and high-voltage power stages. Evaluate the 3 µs rise time against system speed requirements to ensure adequate switching performance.

Part Context

This part belongs to the SFH615A series of transistor output optocouplers. It shares functional similarities with the VO615A-3 but differs in package type, offering SMD-4 instead of DIP-4. The series is characterized by GaAs infrared diodes and NPN phototransistors. It is designed for general-purpose isolation tasks where moderate speed and high reliability are prioritized. The product line adheres to international safety standards including UL and VDE certifications.

Replacement Considerations

The VO615A-3 is listed as a recommended alternative, though it utilizes a through-hole DIP-4 package rather than surface mount. Direct pin-to-pin replacement is not possible due to the package difference; PCB redesign is necessary. Verify that the electrical parameters of the substitute match the system requirements, particularly regarding isolation voltage and current transfer ratio.