LTC7862HUFD#PBF

Overview

The LTC7862HUFD#PBF is a board-mount surge protector manufactured by Analog Devices Inc. It operates within a voltage rating of 4 VDC to 140 VDC and features a maximum current rating of 1.2 mA. The component utilizes SMD/SMT termination and is housed in a QFN-20 package measuring 5 mm in length, 4 mm in width, and 0.75 mm in height. It supports an operating temperature range from -40°C to +125°C and is designed for automotive, avionics, and industrial applications.

Feature Summary

• High-efficiency switching surge stopper functionality
• Integrated overvoltage protection with adjustable clamping
• External switch control capability

Applications

• Automotive systems
• Avionics equipment
• Industrial machinery

Procurement Notes

Verify availability status carefully as supply may be restricted or limited. Confirm that the specific HUFD suffix matches design requirements for temperature grade and package variant. Ensure compatibility with existing board layouts given the QFN-20 footprint dimensions. Check RoHS compliance documentation for regulatory adherence. Validate lead times with authorized distributors due to potential manufacturing constraints.

Selection Notes

Select this component for high-voltage input protection scenarios requiring efficient surge handling. Consider the 140V rating and wide operating temperature range for harsh environments. Evaluate the QFN-20 package size against PCB space constraints. Ensure external switch components are compatible with the controller interface. Verify thermal management needs for continuous operation at elevated temperatures.

Part Context

This part belongs to the LTC7862 series of high-efficiency switching surge stoppers. It is distinct from other Analog Devices power management ICs like the LTC3862 or LTC3786 which serve different topologies. The device specifically addresses transient voltage suppression in high-voltage DC lines rather than standard regulation.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.