LT4356HS-3#PBF

Overview

The LT4356HS-3#PBF is a board mount surge stopper manufactured by Analog Devices Inc., designed for robust power system protection. It operates within a voltage range of 4 VDC to 80 VDC and features a quiescent current rating of 40 uA. The component is housed in an SOIC-16 surface-mount package with SMD/SMT termination, measuring 10 mm in length, 3.99 mm in width, and 1.75 mm in height. It supports an extended operating temperature range from -40°C to +125°C, ensuring reliability in demanding environments.

Feature Summary

• Integrates fault latchoff functionality to secure the load during severe overvoltage or surge events
• Provides high accuracy overvoltage and overcurrent protection boundaries for sensitive downstream circuitry
• Designed for automotive, avionics, and industrial applications requiring reliable board-level surge suppression

Applications

• Automotive electronic systems
• Avionics power distribution networks
• Industrial control equipment

Procurement Notes

Verify the specific suffix #PBF confirms lead-free compliance and RoHS standards before procurement. Confirm the SOIC-16 package dimensions match the target PCB footprint design. Ensure the supply chain source provides valid manufacturer traceability documentation. Check for any recent Product Change Notifications that may affect mechanical or electrical specifications. Validate availability status as distribution channels may report limited stock or discontinuation notices.

Selection Notes

Select this variant when fault latchoff behavior is required to prevent automatic recovery after a surge event. Choose the HS suffix for high-temperature operation up to 125°C in harsh environments. Consider the SOIC-16 package for higher pin count requirements compared to smaller footprints. Evaluate the 40 uA quiescent current against system power budget constraints. Compare against LT4356CS-3#PBF if lower temperature ratings are acceptable for cost optimization.

Part Context

This component belongs to the LT4356 series of surge suppressors from Analog Devices. The series includes variants with different packages and temperature grades, such as the MSOP-10 and DFN-12 options. The -3 suffix specifically denotes the inclusion of fault latchoff logic, distinguishing it from non-latching versions like the -1 series. These devices are engineered to protect sensitive electronics from transient voltage spikes common in industrial and automotive settings.

Replacement Considerations

LT4356IS-3#PBF offers identical electrical performance but in an industrial temperature grade (-40°C to +85°C). LT4356HMS-3#PBF provides the same latchoff function in a compact MSOP-10 package. LT4356CDE-3#PBF utilizes a DFN-12 package for space-constrained designs. Verify thermal management requirements when substituting between package types.