108R-333FS

Overview

The Delevan 108R-333FS is a surface-mount RF inductor designed for radio frequency applications. It features a nominal inductance of 33 uH with a tight tolerance of 1%. The component utilizes a ferrite core and is housed in a compact SMD package measuring 2.5 x 2.5 mm. It supports a maximum DC current of 1 A and exhibits a maximum DC resistance of 13 Ohms. The device operates within a temperature range of -55°C to +125°C, ensuring reliability in demanding environments.

Feature Summary

• Surface mount construction for automated PCB assembly
• Ferrite core material for stable RF performance
• High current handling capability up to 1 A
• Wide operating temperature range for robustness

Applications

• RF choke circuits
• Radio frequency signal filtering
• Impedance matching networks
• Power supply noise suppression in RF systems

Procurement Notes

Verify the specific ordering suffix and manufacturer designation when sourcing, as API Delevan components may be distributed under various legacy codes. Confirm RoHS compliance status and lead times directly with authorized suppliers prior to procurement. Ensure that the selected variant matches the required inductance tolerance and current rating for the target application design specifications.

Selection Notes

Select this component for applications requiring high-current RF chokes in small form factors. The 1% tolerance provides precise inductance control compared to standard 10% variants. Consider the 13 Ohm DC resistance impact on power loss when designing low-voltage circuits. Evaluate thermal management requirements given the 1 A current rating and 125°C maximum operating temperature limit.

Part Context

The 108R series represents Delevan's line of shielded and unshielded surface-mount RF inductors. This specific model belongs to the fixed inductor category, distinct from variable or tunable types. It is engineered for integration into compact electronic assemblies where space constraints and high-frequency stability are critical design parameters.

Replacement Considerations

Direct substitutes include other 33 uH SMD RF inductors with similar current ratings and dimensions. Verify pin compatibility and electrical characteristics such as Q-factor and self-resonant frequency before substitution. Cross-reference with API Delevan documentation for approved alternative part numbers within the same product family.