74478427

Fixed Inductors Overview

The Würth Elektronik 74478427 is an unshielded multilayer ceramic RF inductor in a 0402 (1005 metric) surface-mount package. It features an inductance of 27 nH with a ±5% tolerance and a maximum DC current rating of 200 mA. The component has a maximum DC resistance of 900 mOhms, a minimum Q factor of 8 at 100 MHz, and a self-resonant frequency of 1 GHz. It operates within a temperature range of -55°C to +125°C.

Fixed Inductors Feature Summary

• Multilayer ceramic construction for stable high-frequency performance
• Unshielded design suitable for applications requiring minimal magnetic interference
• AEC-Q200 qualified for automotive reliability standards

Fixed Inductors Applications

• RF matching networks
• High-frequency signal filtering
• Automotive electronics circuits

Fixed Inductors Procurement Notes

This component is obsolete and no longer manufactured. Verify availability through authorized distributors for remaining stock or consider the manufacturer-recommended replacement part number 744784147A. Confirm end-of-life status and lead times directly with suppliers before finalizing procurement plans.

Fixed Inductors Selection Notes

Select this inductor for compact RF designs requiring 27 nH inductance in a 0402 footprint. Ensure the circuit current does not exceed 200 mA. For new designs, evaluate the shielded alternative 744784147A if electromagnetic interference mitigation is required, as it offers similar electrical characteristics with added shielding.

Fixed Inductors Part Context

Part of the WE-MK series of multilayer ceramic SMD inductors from Würth Elektronik. This series provides reliable passive components for RF and high-frequency applications, characterized by small form factors and robust thermal performance suitable for demanding electronic environments.

Fixed Inductors Replacement Considerations

The manufacturer recommends part number 744784147A as a substitute. Note that the replacement is shielded, whereas the original is unshielded. Verify that the shielding difference does not impact the specific circuit layout or electromagnetic compatibility requirements.