106-221F

Overview

The Delevan 106-221F is a fixed unshielded wirewound inductor designed for surface-mount applications. It features an inductance of 220 nH with a tight tolerance of ±1%. The component supports a maximum DC current of 550 mA and exhibits a maximum DC resistance of 330 mOhms. Key electrical characteristics include a minimum Q factor of 40 at 25 MHz and a self-resonant frequency of 450 MHz. The unit operates within a temperature range of -55°C to +125°C, ensuring stability across demanding environments.

Feature Summary

• Unshielded wirewound construction suitable for RF circuits
• High precision ±1% inductance tolerance
• Wide operating temperature range from -55°C to +125°C

Applications

• RF signal processing circuits
• General-purpose surface-mount PCB assembly
• High-frequency filtering applications

Procurement Notes

Verify the specific manufacturer designation, as API Delevan components are often branded under API Delevan. Confirm RoHS compliance status, as historical data indicates non-compliance for this series. Ensure the supplier provides official datasheets matching the 106-221F part number to validate the 220 nH value and 330 mOhm DCR specifications before purchase.

Selection Notes

Select this component when precise inductance control is required for high-frequency designs. The unshielded nature necessitates careful layout planning to minimize electromagnetic interference with adjacent traces. Verify that the 550 mA current rating aligns with the circuit's peak load requirements to prevent saturation or thermal issues during operation.

Part Context

This component belongs to the Delevan fixed inductor family, characterized by robust wirewound technology. It serves as a passive element in electronic circuits, providing impedance matching and energy storage. The 106 series typically offers standard two-lead non-standard packaging, distinguishing it from modern rectangular SMD footprints while maintaining reliable performance in specialized RF environments.

Replacement Considerations

Direct substitutes include the 106-221J variant, which shares similar physical dimensions but differs in tolerance. Cross-reference with other 220 nH unshielded SMD inductors from manufacturers like Coilcraft or Bourns if lead availability is critical, ensuring equivalent Q factors and self-resonant frequencies are met.