LTC4381HDKE-4#TRPBF

Overview

The LTC4381HDKE-4#TRPBF is a board mount surge protector manufactured by Analog Devices Inc. It operates within a voltage range of 4 V to 80 V and supports a current rating of 500 mA. The component utilizes an SMD/SMT termination type and is housed in a DFN-32 package measuring 7 mm in length, 5 mm in width, and 0.75 mm in height. It functions as a low quiescent current eFuse with humidity sensitivity. The device is rated for a minimum operating temperature of -40 C and a maximum operating temperature of +125 C.

Feature Summary

• Provides onboard surge protection capabilities
• Functions as a low quiescent current eFuse

Applications

Procurement Notes

Verify the specific suffix #TRPBF against official Analog Devices documentation to confirm tape-and-reel packaging requirements. Ensure compatibility with DFN-32 footprint specifications during procurement. Confirm that the 500 mA current rating aligns with system design limits. Validate RoHS compliance status through manufacturer datasheets prior to ordering.

Selection Notes

Select this component when high voltage input ranges up to 80 V are required alongside moderate current handling. The DFN-32 package suits applications needing compact surface-mount integration. Consider the -40 C to +125 C operating range for industrial or automotive environments. Verify that the low quiescent current characteristic meets power efficiency targets.

Part Context

This part belongs to the LTC4381 series of board mount surge protectors from Analog Devices. It serves as a specialized power management IC designed for protecting downstream circuits from voltage spikes. The series offers various packages and current ratings to accommodate different system architectures.

Replacement Considerations

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