ISL5571AIBS2682

Telecom Overview

The ISL5571AIBS2682 is a high-voltage solid-state switch designed to replace electromechanical relays on subscriber line cards. It integrates two Line Break MOSFET switches, one Ring Return MOSFET switch, and one Ring Access SCR switch. The device features an ON match of 0.5Ω for the line break switches. It is pin-for-pin compatible with Lucent L7581AAE LCAS and Clare CPCL7581A products.

Telecom Feature Summary

• Integrates multiple switching elements including Line Break MOSFETs, a Ring Return MOSFET, and a Ring Access SCR within a single solid-state device.
• Designed as a direct replacement for traditional electromechanical relays used in subscriber line card applications.

Telecom Applications

• Subscriber Line Cards
• Telecom interface circuits

Telecom Procurement Notes

Verify that the specific suffix 'BS2682' corresponds to the required packaging or tape-and-reel configuration if applicable, as datasheets often list standard variants like 'IRZ'. Confirm RoHS compliance status directly with the supplier, as some listings may indicate 'Not applicable' or vary by production batch. Ensure the component is sourced from authorized channels to guarantee authenticity and traceability.

Telecom Selection Notes

Select this component when a solid-state alternative to electromechanical relays is required for subscriber line protection and signaling. Its compatibility with Lucent and Clare legacy designs simplifies retrofitting into existing telecom infrastructure without requiring significant PCB layout changes.

Telecom Part Context

This part belongs to the Intersil (now Renesas) ISL5571A family of high-voltage switches. The family is specifically engineered for telecom applications, offering improved reliability and performance over mechanical relays while maintaining backward compatibility with established industry standards.

Telecom Replacement Considerations

The device is explicitly documented as pin-for-pin compatible with the Lucent L7581AAE LCAS and the Clare CPCL7581A. These are the primary confirmed substitutes for direct replacement in existing designs.