0819-94H

Overview

The Delevan 0819-94H is a fixed axial leaded RF inductor featuring a molded unshielded coil construction. It provides an inductance of 820 µH with a tolerance of 3% and a maximum DC resistance of 72 Ohms. The component supports a maximum DC current of 25.5 mA and maintains a minimum Q factor of 35. Its self-resonant frequency is specified at 25.5 MHz. The unit measures 5.08 mm in length and 1.98 mm in diameter, designed for standard PCB mounting.

Feature Summary

• Molded unshielded coil design for consistent RF performance
• Axial leaded termination for through-hole PCB integration
• High inductance value suitable for specific filtering applications

Applications

• RF circuit filtering
• Impedance matching networks
• General purpose RF signal processing

Procurement Notes

Verify the manufacturer part number against official Delevan documentation to confirm specifications. Ensure compatibility with RoHS directives if required by your application, as this specific model may not be compliant. Confirm package type and lead dimensions match your PCB footprint requirements before ordering.

Selection Notes

Select this component when high inductance values are required in a compact axial form factor. Consider the low maximum DC current rating and high DC resistance when designing power stages. Verify that the self-resonant frequency aligns with the target operating range for effective RF performance.

Part Context

This component belongs to the Delevan 0819 series of RF inductors. The series offers various inductance values in a standardized cylindrical molded package. These parts are engineered for radio frequency applications requiring stable inductance characteristics in a small footprint.

Replacement Considerations

Cross-reference with other Delevan 0819 series variants for different inductance values. Verify physical dimensions and electrical parameters against alternative manufacturers' axial RF inductors to ensure functional equivalence.