LT4356HDE-3#PBF

Overview

The LT4356HDE-3#PBF is a board mount surge stopper manufactured by Analog Devices Inc., designed for robust power line protection. It operates within a voltage range of 4 VDC to 80 VDC and features a low quiescent current rating of 40 uA. The component utilizes a DFN-12 surface-mount package with dimensions of 4 mm in length, 3 mm in width, and 0.75 mm in height. It supports an extended industrial temperature range from -40°C to +125°C and includes fault latchoff functionality for enhanced system safety.

Feature Summary

• Integrated surge stopper with fault latchoff mechanism
• Low quiescent current operation for efficiency
• Wide input voltage capability up to 80 VDC
• Extended high-temperature reliability

Applications

• Automotive systems
• Avionics equipment
• Industrial control units

Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and tube packaging configuration. Confirm that the DFN-12 footprint matches the target PCB design constraints. Ensure the operating environment stays within the specified -40°C to +125°C thermal limits. Check for any recent product change notifications affecting pinout or material composition before finalizing procurement orders.

Selection Notes

Select this part when high-voltage surge protection is required alongside minimal standby power consumption. The DFN-12 package offers a compact solution for space-constrained designs. Consider the fault latchoff feature if persistent fault isolation is necessary rather than automatic recovery. Validate that the 40 uA quiescent current aligns with the system's power budget requirements.

Part Context

This component belongs to the LT4356 series of surge suppressors, which are engineered to protect sensitive electronics from transient voltage events. The series provides integrated solutions for overvoltage and surge conditions without requiring external discrete components. The HDE variant specifically denotes the high-temperature grade and DFN-12 package type within the broader family lineup.

Replacement Considerations

LT4356CDE-3#PBF serves as a commercial grade alternative with a narrower temperature range of 0°C to +70°C. LT4356IS-3#PBF offers an industrial temperature range but utilizes a SOIC-16 package instead of DFN-12. Verify package compatibility and thermal specifications when substituting these variants.