10M821K

Overview

The 10M821K is a fixed wirewound inductor manufactured by Gowanda Electronics, designed for radio frequency applications. It features an unshielded molded construction with a powdered iron core material. The component exhibits an inductance value of 8.2 µH and a maximum DC resistance of 2.7 Ohms. It supports a DC current rating of 155 mA and achieves a self-resonant frequency of 55 MHz. The device utilizes an axial lead configuration for mounting.

Feature Summary

• Wirewound technology utilizing a powdered iron core for stable RF performance
• Molded unshielded design providing mechanical protection without magnetic shielding
• Axial lead termination style suitable for through-hole integration

Applications

• Radio frequency circuit filtering
• Signal processing components
• General purpose RF coil applications

Procurement Notes

Verify RoHS compliance status and active production lifecycle before procurement. Confirm axial lead dimensions and tolerance specifications against schematic requirements. Ensure the 155 mA current rating meets operational load conditions to prevent thermal issues. Check for any specific molding compound restrictions regarding environmental exposure or soldering temperatures during assembly planning.

Selection Notes

Select this component when an unshielded axial inductor with a powdered iron core is required for RF frequencies up to 55 MHz. The 8.2 µH value and 2.7 Ohm resistance define its impedance characteristics. Consider the 155 mA current limit for power handling constraints. The molded package offers durability but lacks EMI shielding, necessitating layout considerations for sensitive circuits.

Part Context

This part belongs to Gowanda Electronics' line of molded unshielded RF coils. These components are characterized by their wirewound construction and powdered iron cores, distinguishing them from shielded or air-core variants. The 10M series designation typically indicates specific dimensional and electrical standards within the manufacturer's catalog for general-purpose RF applications.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Cross-referencing requires matching inductance, current rating, and physical footprint specifications manually.