1812R-274K

Fixed Inductors Overview

The Delevan 1812R-274K is a surface-mount fixed inductor with a nominal inductance of 270 µH and a tolerance of ±10%. It features an unshielded construction suitable for RF applications. The component has a maximum DC resistance of 12 Ω and a rated DC current of 129 mA. Physical dimensions are 4.83 mm in length, 3.4 mm in width, and 3.4 mm in height.

Fixed Inductors Feature Summary

• Unshielded design optimized for radio frequency environments
• Surface mount package for automated assembly
• Ferrite core construction for stable inductance

Fixed Inductors Applications

• RF circuit filtering
• General purpose power inductor applications
• Signal processing circuits

Fixed Inductors Procurement Notes

Verify the specific manufacturer designation, as API Delevan assets were acquired by Pulse Electronics. Confirm that the part number corresponds to the original Delevan specification rather than a generic equivalent. Check for RoHS compliance status and lead times due to potential supply chain changes following corporate restructuring.

Fixed Inductors Selection Notes

Select this component when a 270 µH inductance value is required in an unshielded configuration. Ensure the operating environment accommodates the magnetic field exposure typical of unshielded designs. Verify that the 129 mA current rating meets the circuit's continuous load requirements without saturation.

Fixed Inductors Part Context

This component belongs to the 1812R series of fixed inductors manufactured by Delevan. The series utilizes ferrite cores and offers various inductance values within the standard 1812 footprint. These parts are designed for reliability in electronic assemblies requiring precise inductive characteristics.

Fixed Inductors Replacement Considerations

• 1812-274K