1025R-54K

Fixed Inductors Overview

The Delevan 1025R-54K is a molded, unshielded RF inductor with axial leads designed for through-hole PCB mounting. It features an iron core and offers a nominal inductance of 27 µH with a ±10% tolerance. The component has a maximum DC resistance of 3.5 Ohms and supports a maximum DC current of 140 mA. It exhibits a minimum Q factor of 50 at 2.5 MHz and a self-resonant frequency of 20 MHz. Operating temperatures range from -55°C to +105°C. Physical dimensions are 6.35 mm in length and 2.41 mm in diameter.

Fixed Inductors Feature Summary

• Molded construction with an iron core for stable RF performance
• Unshielded design suitable for general RF applications
• Axial lead termination for standard through-hole PCB integration

Fixed Inductors Applications

• RF circuit filtering
• Impedance matching networks
• General purpose RF signal processing

Fixed Inductors Procurement Notes

Verify the specific suffix requirements against the official API Delevan datasheet to ensure correct tolerance and packaging specifications. Confirm RoHS compliance status as it varies by variant. Check lead times and minimum order quantities directly with authorized distributors or the manufacturer, as availability may fluctuate based on production cycles.

Fixed Inductors Selection Notes

Select this component when a 27 µH inductance value is required for RF applications with moderate current handling capabilities up to 140 mA. Ensure the unshielded nature does not interfere with nearby sensitive components. Verify that the axial lead form factor fits the target PCB layout constraints and that the operating temperature range meets the environmental requirements of the end application.

Fixed Inductors Part Context

The 1025R-54K belongs to the 1025/R series of RF inductors manufactured by API Delevan. This series is characterized by molded coils with axial leads, offering a balance of performance and reliability for electronic circuits. The part is classified under fixed inductors and chokes, specifically tailored for radio frequency environments where consistent inductance values are critical.

Fixed Inductors Replacement Considerations

Cross-reference with other 27 µH axial RF inductors from API Delevan such as the 1025-54F if tighter tolerances are acceptable. Verify physical footprint compatibility and electrical parameters like DCR and SRF before substitution.

Fixed Inductors FAQ

What is the self-resonant frequency of the 1025R-54K?

The self-resonant frequency is 20 MHz.

Does the 1025R-54K have shielding?

No, the 1025R-54K is an unshielded inductor.