LTC7862EUFD#PBF

Overview

The LTC7862EUFD#PBF is a board-mount surge protector manufactured by Analog Devices Inc., designed for high-efficiency switching surge stopping applications. It operates within a voltage range of 4 VDC to 140 VDC and features an SMD/SMT mounting style in a QFN-20 package measuring 5 mm x 4 mm with a height of 0.75 mm. The device supports a current rating of 1.2 mA and functions across an operating temperature range from -40°C to +125°C.

Feature Summary

• Integrates high-efficiency switching technology for effective surge suppression
• Supports wide input voltage ranges up to 140 VDC
• Designed for robust performance in demanding thermal environments

Applications

• Automotive systems requiring transient protection
• Avionics equipment needing reliable surge stopping
• Industrial control circuits susceptible to voltage spikes

Procurement Notes

Verify component authenticity through authorized channels due to limited supply status. Confirm RoHS compliance details and specific packaging requirements before integration. Ensure the QFN-20 footprint matches design constraints. Check for any recent production changes or material declarations that may affect long-term availability and reliability in critical deployments.

Selection Notes

Select this component when designing circuits exposed to high-voltage transients up to 140 VDC. The QFN-20 package offers a compact solution for space-constrained layouts. Consider the -40°C to +125°C operating range for harsh environment suitability. Evaluate the 1.2 mA current rating against system leakage requirements to ensure proper functionality without excessive power loss during normal operation.

Part Context

This part belongs to the LTC7862 series of surge suppressors, specifically tailored for board-mount applications. It serves as a protective element against electrical surges in sensitive electronics. The EUFD suffix indicates a specific temperature grade and package variant within the broader product family, ensuring compatibility with standard surface-mount assembly processes used in modern manufacturing.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify if the LTC7862EUFD#TRPBF variant meets mechanical and functional requirements, noting differences in packaging format between tube and tape-and-reel options.