SFH615AGR

Overview

The SFH615AGR is a single-channel transistor output optocoupler manufactured by Vishay Semiconductor Opto Division. It features an NPN phototransistor output and operates within a temperature range of -55°C to +100°C. Key electrical parameters include a maximum collector-emitter voltage of 70 V, a maximum collector current of 50 mA, and a power dissipation of 150 mW. The device provides high isolation with a rated insulation voltage of 5300 Vrms. The current transfer ratio (CTR) ranges from 100% to 300%. Typical switching characteristics include a rise time of 3 µs and a fall time of 14 µs.

Feature Summary

• Provides galvanic isolation between input and output circuits via an infrared LED and NPN phototransistor pair.
• Offers high dielectric strength with a 5300 Vrms insulation voltage rating for safety-critical applications.
• Features a wide current transfer ratio range of 100% to 300% to accommodate varying signal transmission requirements.

Applications

• Industrial control systems requiring isolated signal transmission
• Power supply feedback loops for voltage regulation
• Communication interfaces needing electrical isolation

Procurement Notes

Verify the specific suffix designation when ordering, as it determines the package type and tape/reel configuration. Confirm that the required current transfer ratio bin aligns with the application's sensitivity thresholds. Ensure the procurement channel sources genuine Vishay components to guarantee compliance with the specified electrical limits and thermal ratings.

Selection Notes

Select this component when high isolation voltage and moderate speed are required in a compact form factor. Compare the CTR range against the load requirements to ensure sufficient gain. Consider the operating temperature range if deployed in harsh environments. Evaluate the DIP-4 or SMD-4 package options based on the assembly method and board space constraints of the target design.

Part Context

This part belongs to the SFH615A series of transistor output optocouplers. It shares core electrical specifications with variants like SFH615A-3 and SFH615A-2X016 but differs in packaging and specific CTR grading. The series is designed for general-purpose isolation tasks where reliability and standard interface compatibility are prioritized over ultra-high speed or digital logic integration.

Replacement Considerations

The VO615A-1X001 is listed as a recommended alternative for similar isolation needs. Verify pinout compatibility and insulation voltage ratings before substitution. Check if the replacement's CTR range meets the circuit's minimum drive requirements.