LTC4381IDKE-4#PBF

Overview

The LTC4381IDKE-4#PBF is a low quiescent current eFuse and surge stopper manufactured by Analog Devices Inc. It operates within a voltage range of 4 V to 72 V and supports a continuous current rating of 500 mA. The device is housed in a DFN-32 package measuring 7 mm by 5 mm with a height of 0.75 mm. It functions as a board mount surge protector designed for robust power distribution protection.

Feature Summary

• Integrates low quiescent current electronic fuse functionality for efficient power management
• Provides comprehensive board mount surge protection against input transients
• Features high voltage tolerance suitable for demanding industrial environments

Applications

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

Procurement Notes

Verify the specific suffix designation to ensure correct operational parameters, as variants within the LTC4381 family may differ in configuration or performance characteristics. Confirm RoHS compliance status through official documentation prior to integration. Ensure the supplier provides valid traceability data for quality assurance purposes during the procurement process.

Selection Notes

Select this component when designing circuits requiring high voltage input handling up to 72 V combined with precise current limiting capabilities. The DFN-32 package offers a compact footprint for space-constrained layouts. Consider the thermal requirements associated with the 500 mA rating and the operating temperature range spanning from -40°C to +125°C for reliable performance.

Part Context

This part belongs to the LTC4381 series of low quiescent current eFuses with integrated surge protection. It serves as a critical protection element in power distribution architectures, replacing traditional fuses and discrete protection circuits. The series is engineered for applications requiring high reliability and minimal standby power consumption.

Replacement Considerations

LTC4381ADKE-4#PBF