SFH615A-1

Overview

The SFH615A-1 is a single-channel transistor output optocoupler manufactured by Vishay Semiconductors. It features an NPN phototransistor output and utilizes a through-hole PDIP-4 package. The device provides high isolation with a rated insulation voltage of 5300 Vrms. Key electrical parameters include a collector-emitter voltage of 70 V, a maximum collector current of 50 mA, and a forward current of 60 mA. The current transfer ratio ranges from 40% to 80%. Operating temperatures span from -55°C to +100°C.

Feature Summary

• Provides galvanic isolation between input and output circuits using an infrared LED and NPN phototransistor configuration.
• Offers high dielectric strength suitable for demanding industrial environments requiring robust signal separation.
• Designed for reliable operation across extended temperature ranges in various electronic control applications.

Applications

• Logic-to-logic isolation in noisy industrial environments
• Line receiver circuits
• Programmable current level sensors

Procurement Notes

Verify the manufacturer designation carefully, as this component is produced by Vishay Semiconductors. Confirm that the specific suffix matches the required CTR range and packaging style. Ensure compliance with relevant safety certifications such as UL and VDE if used in regulated equipment. Cross-reference datasheets to confirm pinout compatibility with existing PCB layouts before finalizing procurement orders.

Selection Notes

Select this component when a through-hole DIP-4 package is required for manual assembly or rework flexibility. Choose based on the specific current transfer ratio requirements, noting the 40-80% range. Consider the 5300 Vrms isolation rating for high-voltage separation needs. Evaluate thermal management capabilities given the 150 mW power dissipation limit and operating temperature range.

Part Context

This part belongs to the SFH615A series of transistor output optocouplers. It is functionally equivalent to other industry-standard parts like the VO615A-1X009T. The series is designed for general-purpose isolation tasks. Isocom Components offers compatible alternatives within this family. The component represents a standard solution for basic digital signal isolation.

Replacement Considerations

Public confirmed substitute part numbers include VO615A-1X009T. Verify pinout and electrical specifications match before substitution. Check for any differences in packaging or certification requirements. Ensure the replacement meets all original design constraints regarding isolation voltage and current transfer ratios.