0402HP-400EJTS

Fixed Inductors Overview

The 0402HP-400EJTS is a fixed surface-mount inductor from Delta Electronics/Components, designed for high-frequency applications. It features an unshielded drum core wirewound construction with a ceramic magnetic core. The component provides an inductance of 40 nH with a ±5% tolerance and a self-resonant frequency of 3 GHz. It supports a rated current of 450 mA and exhibits a DC resistance of 430 mOhm. Measured at 100 MHz, the Q factor is 25. The device operates within a temperature range of -40°C to 125°C and is housed in a compact 0402 (1005 Metric) package measuring 1.15mm x 0.70mm x 0.60mm.

Fixed Inductors Feature Summary

• Unshielded drum core wirewound design utilizing a ceramic magnetic core for stable performance.
• High self-resonant frequency capability up to 3 GHz suitable for RF signal processing.
• Compact 0402 footprint optimized for dense surface-mount PCB layouts.

Fixed Inductors Applications

• RF filtering circuits
• DC-DC converter output chokes
• Signal line impedance matching

Fixed Inductors Procurement Notes

Verify the specific manufacturer designation on the datasheet, as external listings sometimes associate this part number with Cyntec or Delta Electronics. Confirm that the RoHS status aligns with project requirements, noting compliance with ROHS3 standards. Ensure the ordering suffix matches the required packaging format, typically tape and reel, to avoid handling discrepancies during assembly.

Fixed Inductors Selection Notes

Select this component when a 40 nH inductance value is required with a 450 mA current rating in a minimal footprint. The unshielded nature necessitates careful layout planning to prevent electromagnetic interference with adjacent components. Verify that the operating environment stays within the specified -40°C to 125°C range and that the 430 mOhm DC resistance meets power loss constraints.

Fixed Inductors Part Context

This model belongs to the 0402HP series, which focuses on high-performance micro-inductors. The series offers various inductance values ranging from low nanohenries to higher ranges, all sharing the same 0402 physical dimensions. This specific variant targets applications requiring precise inductance control and moderate current handling in space-constrained designs.

Fixed Inductors Replacement Considerations

Direct substitutes include other 0402HP series variants such as 0402HP-250EJTS or 0402HP-220EJTS if different inductance values are acceptable. Cross-brand replacements must match the 40 nH nominal value, 450 mA current rating, and 0402 package dimensions to ensure mechanical compatibility.

Fixed Inductors FAQ

Is the 0402HP-400EJTS shielded?

No, the component is explicitly described as an unshielded drum core, wirewound inductor.

What is the maximum operating temperature?

The device supports operation up to 125°C.