103R-821G

Overview

The Delevan 103R-821G is an unshielded surface-mount RF inductor designed for radio frequency applications. It features a nominal inductance of 0.82 µH with a tight tolerance of ±2%. The component has a maximum DC resistance of 0.53 ohms and supports a maximum DC current of 430 mA. Key electrical parameters include a minimum Q factor of 22 and a self-resonant frequency of 160 MHz. The device utilizes standard terminations and operates within a temperature range of -55°C to +125°C.

Feature Summary

• Unshielded construction suitable for general-purpose RF circuitry
• High precision inductance tolerance for stable signal performance
• Robust thermal stability across extended industrial temperature ranges

Applications

• RF filtering circuits
• Impedance matching networks
• Radio frequency signal processing

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to ensure correct tolerance and packaging specifications. Confirm RoHS compliance status directly with the supplier, as regulatory data may vary by production batch. Cross-reference the Mouser part number 807-103R-821G with the original datasheet to validate all electrical parameters before finalizing procurement orders.

Selection Notes

Select this component when precise inductance control is required for RF applications. The unshielded design necessitates careful PCB layout to minimize electromagnetic interference coupling. Ensure the operating frequency remains below the self-resonant frequency to maintain inductive behavior. Verify that the maximum DC current rating aligns with the circuit's operational requirements to prevent saturation.

Part Context

This component belongs to the 103R series of RF inductors manufactured by API Delevan. The series offers various inductance values optimized for high-frequency performance. These components are widely used in telecommunications and consumer electronics where compact size and reliable RF characteristics are essential for system functionality.

Replacement Considerations

Direct substitutes include the 103-821HS and 103R-561H from the same manufacturer family. When replacing, verify that the replacement part matches the inductance value, tolerance, and physical footprint dimensions to ensure compatibility with existing PCB layouts and circuit performance requirements.