ZL70571UDJ

Overview

The ZL70571UDJ is a medical-grade implantable surge protection device manufactured by Microchip Technology. It functions as a transient voltage suppressor with a nominal breakdown voltage of 9.2V and a clamping voltage range of 9 to 12.2V. The component features an internal switch die and supports five circuits. Designed for high-reliability applications, it offers extremely fast turn-on characteristics, very small physical size, and very low leakage current. The device status is listed as discontinued.

Feature Summary

• Extremely fast turn-on response time for immediate surge mitigation
• Very small form factor suitable for constrained implantable spaces
• Very low leakage current to preserve battery life in medical devices

Applications

• Implantable medical devices requiring surge protection
• Advanced driver assistance systems (ADAS)
• Mobile phones

Procurement Notes

Verify availability carefully as the ZL70571UDJ is officially listed as discontinued by the manufacturer. Sourcing may require checking secondary market distributors or evaluating end-of-life inventory levels. Confirm exact terminal count and package variant compatibility before procurement to ensure design continuity.

Selection Notes

Select this component only if its specific 9.2V breakdown voltage and 5-circuit configuration match the system requirements. Consider the discontinued status when planning long-term production cycles. Evaluate alternative surge protection ICs from the same family or newer generations that offer similar fast turn-on and low leakage specifications for future designs.

Part Context

This part belongs to the ZL7057x series of medical surge protection devices. The series includes variants with 5, 6, and 7 terminals. These components are engineered specifically for harsh environments and sensitive electronics where standard protection devices are too large or slow. The UDJ suffix typically denotes a specific package and terminal configuration within this product line.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation due to the discontinued status. Engineers should consult Microchip Technology for official obsolescence notices and recommended cross-reference parts. Reviewing the broader ZL7057x family datasheet may reveal functional equivalents with updated availability.