103R-680KS

Overview

The Delevan 103R-680KS is a fixed surface-mount RF inductor with an inductance of 68 nH and a tolerance of 10%. It features a maximum DC resistance of 195 mOhms and supports a maximum DC current of 705 mA. The component operates within a temperature range of -55°C to 125°C and exhibits a minimum Q factor of 36 at 50 MHz. Its self-resonant frequency reaches 1 GHz, and it utilizes an unshielded design suitable for high-frequency applications.

Feature Summary

• Unshielded chip construction designed for radio frequency signal processing
• High self-resonant frequency capability up to 1 GHz
• Robust thermal performance across extended industrial temperature ranges

Applications

• RF circuit filtering
• Impedance matching networks
• Oscillator tank circuits

Procurement Notes

Verify the specific datasheet version against MIL-PRF-83446/04 military specifications to ensure compliance with required environmental standards. Confirm that the unshielded package type aligns with your PCB layout constraints regarding electromagnetic interference susceptibility. Validate terminal compatibility for surface mount assembly processes prior to integration.

Selection Notes

Select this component when a compact, unshielded inductor is required for frequencies near 1 GHz. Ensure the 705 mA current rating meets the operational load requirements of the target circuit. Consider the physical dimensions of 2.54 mm by 2.54 mm for footprint planning. Evaluate the impact of the unshielded design on adjacent sensitive components during layout.

Part Context

This part belongs to the API Delevan series of fixed RF inductors manufactured under military specifications. The 103R series typically offers non-standard footprints optimized for specific RF applications. These components are engineered for reliability in demanding electronic environments, distinguishing them from standard commercial-grade inductors through rigorous testing protocols.

Replacement Considerations

Cross-reference with other MIL-PRF-83446/04 compliant parts if equivalent military qualification is mandatory. Verify that substitute components match the 68 nH value, 195 mOhm DCR, and 705 mA current handling capabilities. Ensure physical dimensions remain compatible with existing board space.