103R-331F

Overview

The Delevan 103R-331F is a fixed surface-mount RF inductor with a nominal inductance of 0.33 µH (330 nH) and a tolerance of ±1%. It features a maximum DC resistance of 235 mΩ and a rated maximum DC current of 645 mA. The component exhibits a minimum Q factor of 25 and a self-resonant frequency of 300 MHz. Designed for high-frequency applications, it utilizes an unshielded construction within a nonstandard rectangular package footprint.

Feature Summary

• Unshielded chip design optimized for radio frequency signal processing
• High precision inductance stability with tight manufacturing tolerances
• Surface-mount termination style for automated assembly integration

Applications

• RF circuit filtering and impedance matching networks
• High-frequency signal conditioning modules
• General purpose RF inductor applications requiring stable reactance

Procurement Notes

Verify the specific suffix designation against manufacturer documentation to confirm exact electrical characteristics and material composition. Confirm RoHS compliance status as availability varies by production batch. Ensure the ordering quantity meets the manufacturer's standard packaging requirements before finalizing procurement orders.

Selection Notes

Select this component when a precise 330 nH inductance is required for RF environments. The unshielded architecture necessitates careful PCB layout to minimize electromagnetic interference coupling. Verify that the 645 mA current rating aligns with the operational load to prevent saturation or thermal issues during continuous use.

Part Context

This part belongs to the API Delevan 103 series of fixed RF inductors. These components are engineered for general-purpose radio frequency applications where compact size and reliable performance are critical. The series offers various inductance values tailored for different frequency bands and circuit impedances.

Replacement Considerations

Cross-reference with other 330 nH SMD RF inductors ensuring identical current ratings and Q factors. Verify physical footprint compatibility if space constraints exist. Confirm that alternative suppliers offer equivalent temperature stability and self-resonant frequency specifications.