78F821J

Fixed Inductors Overview

The Bourns Inc. 78F821J is a fixed wirewound inductor featuring an unshielded drum core design with axial leads. It provides an inductance of 820 µH and supports a maximum DC current of 43 mA. The component exhibits a maximum DC resistance of 23 Ohms. This through-hole device is engineered for RF applications, offering reliable performance within its specified electrical parameters.

Fixed Inductors Feature Summary

• Unshielded drum core construction
• Axial leaded configuration
• Wirewound technology

Fixed Inductors Applications

• RF choke circuits
• Signal filtering applications
• General purpose inductive components

Fixed Inductors Procurement Notes

Verify the specific suffix against the manufacturer's official documentation to confirm exact tolerance and packaging specifications. Ensure the selected variant matches the required axial lead style and unshielded core characteristics for the target circuit design.

Fixed Inductors Selection Notes

Select this component when an unshielded axial inductor is required for RF or general signal processing. Consider the 43 mA current limit and 23 Ohm resistance to ensure compatibility with the circuit's power and impedance requirements.

Fixed Inductors Part Context

This part belongs to the Bourns 78F series of conformal coated RF chokes. These components are designed for robust performance in electronic circuits requiring fixed inductance values with axial mounting capabilities.

Fixed Inductors Replacement Considerations

Consult official cross-reference data for verified substitute part numbers from Bourns or other manufacturers that match the 820 µH inductance, 43 mA current rating, and axial package form factor.