LTC4381CDKE-2#PBF

Overview

The LTC4381CDKE-2#PBF is a board mount surge protector manufactured by Analog Devices Inc. It operates within a voltage range of 4 VDC to 72 VDC and features a low quiescent current of 12 uA. 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 0.7 mm in height. It supports a capacitance value of 47 nF and functions reliably across a temperature range from -40 C to +85 C.

Feature Summary

• Provides onboard surge protection for input power lines
• Features ultra-low quiescent current consumption
• Supports high voltage input ranges up to 72 VDC

Applications

• Automotive systems
• Avionics equipment
• Industrial control units

Procurement Notes

Verify the specific suffix and manufacturer part number against official Analog Devices documentation before procurement. Confirm that the DFN-32 package dimensions and thermal requirements align with the target PCB layout. Check for end-of-life status or supply restrictions as availability may vary. Ensure compliance with RoHS directives and moisture sensitivity levels required for the assembly process.

Selection Notes

Select this component when designing circuits requiring robust input surge suppression with minimal standby power draw. Consider the DFN-32 package size constraints and the 4 VDC to 72 VDC operating window. Evaluate thermal dissipation capabilities within the specified -40 C to +85 C ambient temperature range. Compare against alternative surge stoppers if higher current ratings or different package footprints are necessary.

Part Context

This device belongs to the LTC4381 series of current surge stoppers designed for protecting sensitive electronics from input power line disturbances. It integrates high-voltage switches and control logic to manage surge events efficiently. The product is categorized under board mount surge protectors and suppressors within the Analog Devices portfolio, targeting applications where space and power efficiency are critical design parameters.

Replacement Considerations

LTC4381ADKE-2#PBF

FAQ

What is the maximum input voltage supported by this surge stopper?

The component supports input voltages ranging from 4 VDC to 72 VDC.

Which package type does the LTC4381CDKE-2#PBF utilize?

It uses a DFN-32 surface-mount package with dimensions of 7 mm x 5 mm x 0.7 mm.