2890R-22H

Fixed Inductors Overview

The Delevan 2890R-22H is a leaded RF inductor from the 2890/R series, designed for printed circuit board mounting. It features an axial termination style and utilizes a molded unshielded construction. The component provides an inductance of 12 µH with a tolerance of ±3%. It supports a maximum DC current of 405 mA and exhibits a maximum DC resistance of 2.65 Ohms. Key performance metrics include a minimum Q factor of 40 and a self-resonant frequency of 50 MHz. The physical dimensions are 7.11 mm in diameter by 22.86 mm in length.

Fixed Inductors Feature Summary

• Molded unshielded construction suitable for RF applications
• Axial leaded termination for standard PCB mounting
• High self-resonant frequency for effective RF operation

Fixed Inductors Applications

• RF signal processing circuits
• Impedance matching networks
• Filtering applications in radio frequency systems

Fixed Inductors Procurement Notes

Verify the specific ordering suffix and packaging configuration directly with the manufacturer or authorized distributors to ensure compliance with current production standards. Confirm RoHS compliance status and environmental certifications prior to final procurement decisions. Cross-reference part numbers with official datasheets to avoid substitution errors.

Fixed Inductors Selection Notes

Select this component when an unshielded axial inductor with 12 µH nominal value is required for RF designs. Consider the 405 mA current rating and 2.65 Ohm resistance limits against circuit requirements. Ensure the 50 MHz self-resonant frequency aligns with the target operating band. Verify mechanical fit within the available PCB space.

Fixed Inductors Part Context

This component belongs to the Delevan 2890/R series of fixed RF inductors. The series offers various inductance values and tolerances in a consistent molded axial package. These components are engineered for reliability in high-frequency environments where unshielded designs are preferred to minimize parasitic coupling effects.

Fixed Inductors Replacement Considerations

Consult official cross-reference lists for verified substitutes. Generic equivalents may differ in Q factor, self-resonant frequency, or current handling capabilities. Validate any replacement part against the original electrical specifications and physical footprint constraints.