ISP825XSMT&R

Overview

The ISP825XSMT&R is a high-density mounting photodarlington optically coupled isolator manufactured by Isocom Components. It integrates an infrared light emitting diode with an NPN silicon photodarlington output in a space-efficient dual in line plastic package. The device features a minimum current transfer ratio of 600% and provides high isolation voltage ratings of 5.3kVRMS and 7.5kVPK. All electrical parameters are 100% tested to ensure reliability. The 'SMT&R' suffix indicates the component is supplied in tape and reel packaging for surface mount applications.

Feature Summary

• Integrates an infrared LED with an NPN silicon photodarlington transistor for signal isolation
• Provides high current transfer ratio capabilities for efficient signal transmission
• Offers robust electrical isolation between input and output circuits
• Available in surface mount tape and reel configuration for automated assembly

Applications

• Computer terminals
• Industrial systems controllers
• Measuring instruments
• Signal transmission between systems of different potentials and impedances

Procurement Notes

Verify that the ordering suffix SMT&R corresponds to the required tape and reel packaging format rather than standard tube or bulk packaging. Confirm the specific lead form variant matches the design requirements, as options include standard lead spread or surface mount configurations. Ensure the requested part number aligns with the official Isocom Components datasheet specifications for the ISP825 series to guarantee correct electrical characteristics and physical dimensions.

Selection Notes

Select this component when high current transfer ratio performance is required for driving loads directly without additional amplification stages. The photodarlington output structure offers higher sensitivity compared to standard phototransistor outputs. Consider the surface mount tape and reel option for high-volume manufacturing processes requiring automated placement equipment. Evaluate the isolation voltage ratings against the system's safety requirements to ensure adequate protection between circuit sections.

Part Context

The ISP825 belongs to the ISP815, ISP825, and ISP845 series of optically coupled isolators from Isocom Components. These devices are designed for high-density mounting applications where space efficiency is critical. The series utilizes NPN silicon photodarlington technology to provide enhanced signal coupling capabilities. The components are housed in dual in line plastic packages available in various pin counts to suit different channel requirements.

Replacement Considerations

Public confirmed substitute part numbers: None identified.