103R-681H

Overview

The Delevan 103R-681H is a surface-mount RF inductor with an inductance of 680 nH and a tolerance of ±3%. It features an unshielded design with a maximum DC resistance of 520 mOhms and a rated current of 435 mA. The component operates within a temperature range of -55°C to +105°C, offering a minimum Q factor of 22 and a self-resonant frequency of 175 MHz. Its physical dimensions are 2.54 mm in length, 2.54 mm in width, and 1.91 mm in height.

Feature Summary

• Surface mount construction for automated PCB assembly
• Unshielded magnetic structure for specific RF applications
• Ferrite core material for stable inductance characteristics

Applications

• RF signal processing circuits
• Impedance matching networks
• Filter circuit implementations

Procurement Notes

Verify component authenticity through authorized channels. Confirm RoHS compliance status prior to integration. Validate electrical parameters against latest manufacturer datasheets. Ensure storage conditions meet moisture sensitivity requirements. Check for obsolescence notices before finalizing procurement plans.

Selection Notes

Select this component for unshielded RF applications requiring 680 nH inductance. Consider the 520 mOhm DC resistance for power loss calculations. Evaluate the 175 MHz self-resonant frequency against operating bandwidth. Assess thermal performance within the specified -55°C to +105°C range. Compare physical footprint constraints against available PCB space.

Part Context

This part belongs to the 103/R series of fixed inductors manufactured by Delevan. It is categorized under RF Inductors - SMD. The series provides standard surface mount solutions for radio frequency circuitry. The component utilizes a non-standard two-lead package configuration suitable for high-frequency signal handling.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.