LT4363CDE-1#TRPBF

Overview

The LT4363CDE-1#TRPBF is a high-voltage surge stopper with current limit, manufactured by Analog Devices Inc. It operates within an input voltage range of 4 VDC to 80 VDC and features a DFN-12 surface-mount package measuring 4 mm in length, 3 mm in width, and 0.75 mm in height. The device supports SMD/SMT termination types and functions within a temperature range of 0°C to +70°C. Designed for board mount applications, it provides robust protection against transient overvoltages and output overloads through integrated current limiting mechanisms.

Feature Summary

• Integrates high-voltage surge stopping capability with active current limiting to protect downstream components from output overloads.
• Features latch-off behavior upon fault detection, requiring a specific shutdown signal duration to reset the circuit state.
• Supports operation across standard automotive, avionics, and industrial environments with defined thermal operating limits.

Applications

• Automotive power distribution systems
• Avionics equipment power inputs
• Industrial control panel protection

Procurement Notes

Verify the exact suffix designation when ordering, as tape-and-reel packaging variants may differ in physical handling or reel specifications compared to tube-packaged equivalents. Confirm that the DFN-12 footprint matches the target PCB design constraints. Ensure that the operational temperature range aligns with the environmental conditions of the intended application site before finalizing procurement decisions.

Selection Notes

Select this component when designing circuits requiring protection against high-voltage transients up to 80 VDC. The -1 suffix indicates a latch-off mode, which is suitable for applications where manual intervention or external logic reset is preferred after a fault event. Consider the DFN-12 package dimensions for space-constrained layouts. Evaluate the thermal dissipation requirements relative to the specified operating temperature range of 0°C to +70°C.

Part Context

This part belongs to the LT4363 series of high-voltage surge stoppers. It shares functional similarities with other members of the family but differs in its specific fault response mechanism. The -1 variant distinguishes itself by latching off during faults, contrasting with retry-based variants. It serves as a critical interface component between raw power sources and sensitive load electronics in harsh electrical environments.

Replacement Considerations

LT4363CDE-1#PBF