ZL70572UDJ

Overview

The ZL70572UDJ is an implantable surge protection device manufactured by Microchip Technology. It functions as a unidirectional transient voltage suppressor designed for high-reliability environments. The component features five internal circuits to manage overvoltage events. It utilizes an internal switch die architecture with a clamping voltage range of 17 to 19.5 volts. The device is supplied in a bare die package format, suitable for direct integration into custom medical or industrial assemblies requiring compact form factors and low leakage characteristics.

Feature Summary

• Implantable surge protection design optimized for extreme miniaturization
• Extremely fast turn-on response time for immediate transient suppression
• Very small physical size with minimal leakage current characteristics

Applications

• Implantable medical devices requiring robust surge protection
• High-density electronic assemblies with strict space constraints
• Critical systems demanding low-leakage voltage suppression

Procurement Notes

Verify the obsolete status of this specific part number before initiating any procurement process. Confirm that the bare die package format aligns with your manufacturing capabilities, as it requires specialized handling and assembly equipment. Ensure compatibility with your existing surge protection architecture, as replacement components may require design adjustments due to the specific die-level implementation and terminal configuration.

Selection Notes

Select this component when ultra-compact form factors and low leakage are critical requirements. The bare die configuration necessitates advanced packaging solutions within the final system. Evaluate the need for five distinct protection channels against available alternatives. Consider the implications of using an implantable-rated device in non-medical applications regarding cost and availability. Verify interface compatibility with the target circuit's voltage levels.

Part Context

This device belongs to Microchip's family of medical surge protection integrated circuits, which includes variants like the ZL70571, ZL70573, and ZL70574. These components share similar architectural goals of providing reliable transient suppression in constrained spaces. The family is characterized by fast response times and low leakage, catering specifically to industries where size and reliability are paramount, such as healthcare and aerospace.

Replacement Considerations

Public confirmed substitute part numbers are not available for this obsolete component. Engineering teams must evaluate alternative surge protection ICs from the same manufacturer or other suppliers. Any replacement must match the electrical specifications and physical footprint requirements. Design modifications may be necessary to accommodate different package types or pin configurations.