105-122H

Overview

The Delevan 105-122H is a fixed surface-mount RF inductor designed for general-purpose applications. It features an iron core and epoxy encapsulation with a nominal inductance of 1.2 µH and a tolerance of 3%. The component has a maximum DC resistance of 1 ohm and supports a maximum DC current of 310 mA. It operates within a temperature range of -55°C to 125°C and utilizes a nonstandard two-lead SMD package.

Feature Summary

• Epoxy encapsulated construction for environmental protection
• Iron core design optimized for RF frequency performance
• Surface mount termination style for automated PCB assembly

Applications

• RF signal processing circuits
• General purpose inductive filtering
• High-frequency impedance matching networks

Procurement Notes

Verify component authenticity through authorized channels, as the 105-122H may be classified as obsolete or end-of-life by the manufacturer. Confirm lead availability and potential supply chain constraints before finalizing procurement plans. Ensure that replacement components meet identical electrical specifications and physical footprint requirements to maintain circuit integrity during production updates.

Selection Notes

Select this component when a 1.2 µH inductance value with tight 3% tolerance is required for RF applications. The 1 ohm DC resistance and 310 mA current rating define its power handling limits. Consider the specific operating temperature range of -55°C to 125°C and the nonstandard package dimensions to ensure compatibility with existing board layouts and thermal management strategies.

Part Context

This part belongs to the Delevan 105 series of fixed inductors, which are characterized by their use of iron cores and epoxy encapsulation. These components are engineered for stability in radio frequency environments. The 105-122H specifically addresses needs for moderate inductance values in compact surface-mount form factors, distinguishing it from shielded or higher-current power choke variants within the broader product catalog.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the potentially obsolete status of this component, engineers should evaluate cross-reference options based on strict adherence to the 1.2 µH inductance, 3% tolerance, 1 ohm DCR, and compatible package dimensions.