SFH628A-2XSMT&R

Overview

The SFH628A-2XSMT&R is a single-channel optoisolator manufactured by Isocom Components, featuring a surface-mount DIP package with four pins. It utilizes a transistor output configuration and provides an electrical isolation voltage of 5300Vrms. The device supports a maximum forward current of 60mA and delivers a collector current of 50mA per channel. Key performance metrics include a coupled current transfer ratio ranging from 32% to 200%, with a typical value of 63%. Operating temperatures span from -40°C to 100°C, ensuring reliability in diverse industrial environments.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits for signal integrity.
• Features a compact surface-mount design suitable for automated assembly processes.
• Utilizes a transistor output stage for robust switching capabilities in digital applications.

Applications

• AC/DC input isolation in power supply units
• Industrial control system signal interfacing
• Smart metering and utility monitoring devices

Procurement Notes

Verify the specific suffix designation to ensure compatibility with required packaging formats, as variations may exist between tape-and-reel and cut-tape configurations. Confirm that the component meets all relevant safety standards for the target application environment. Cross-reference the manufacturer part number with official distributor catalogs to validate current availability status and lead times before finalizing procurement plans.

Selection Notes

Select this component when high isolation voltage requirements are critical for circuit protection. The wide operating temperature range makes it suitable for harsh industrial conditions. Ensure the package type aligns with existing PCB footprint constraints. Evaluate the current transfer ratio specifications against the driving capability of the input source to guarantee reliable switching performance under varying load conditions.

Part Context

This component belongs to the broader category of optocouplers designed for galvanic isolation. Isocom Components specializes in providing alternatives to standard industry parts, often offering enhanced parameter selection. The SFH628A series represents a common architecture for general-purpose isolation tasks, balancing performance with cost-effectiveness for mass-produced electronic equipment.

Replacement Considerations

Direct substitutes may include other single-channel transistor-output optocouplers with comparable isolation ratings. Verify pinout compatibility and package dimensions to ensure seamless integration into existing designs without modifying the printed circuit board layout.

FAQ

What is the maximum isolation voltage rating?

The device is rated for 5300Vrms electrical isolation between the input LED and the output transistor.

Does this component support AC or DC input signals?

It is designed for both AC and DC input isolation applications, making it versatile for various power supply interfaces.