LT4363CDE-2#PBF

Overview

The LT4363CDE-2#PBF is a board mount surge protector manufactured by Analog Devices Inc. It operates within a voltage range of 4 VDC to 80 VDC and features a current rating of 1.2 mA. The component utilizes an SMD/SMT termination type housed in a DFN-12 package with dimensions of 4 mm length, 3 mm width, and 0.75 mm height. Designed for PCB mounting, it functions reliably between 0°C and +70°C. This device belongs to the LT4363 series and serves as a high-voltage surge stopper with current limiting capabilities.

Feature Summary

• Provides onboard protection against high-voltage surges while limiting output current
• Automatically retries operation after fault conditions cool down without latching off
• Integrates current limiting to protect downstream MOSFETs from output overloads

Applications

• Automotive systems requiring robust input protection
• Avionics equipment needing reliable surge suppression
• Industrial control circuits exposed to transient voltage events

Procurement Notes

Verify the specific suffix CDE-2 corresponds to the commercial temperature grade and DFN-12 package configuration required for your design. Confirm RoHS compliance status through official manufacturer documentation before finalizing procurement. Ensure the selected variant matches the thermal and mechanical constraints of the target printed circuit board assembly process.

Selection Notes

Select this component when a non-latching automatic retry mechanism is preferred over latch-off behavior following a fault event. Choose the DFN-12 package for applications requiring a compact footprint with surface-mount compatibility. Ensure the operating environment remains within the specified 0°C to +70°C range to maintain guaranteed performance specifications.

Part Context

This part belongs to the LT4363 family of high-voltage surge stoppers designed to protect sensitive electronics from input transients. The -2 suffix indicates automatic retry functionality upon fault clearance, distinguishing it from latch-off variants. The CDE designation specifies the commercial temperature range and DFN-12 package style, differentiating it from industrial or military grade alternatives in the same series.

Replacement Considerations

LT4363IS-2#PBF offers identical electrical functionality but uses an SOIC-16 package and supports a wider temperature range. LT4363MPMS-2#PBF provides military-grade reliability with extended temperature capabilities in an MSOP-12 package. Verify pinout compatibility and thermal management requirements when substituting these variants.