0819-40J

Overview

The Delevan 0819-40J is a fixed axial leaded RF inductor with a nominal inductance of 4.7 µH and a tolerance of ±5%. It features a molded unshielded construction with a maximum DC resistance of 2.1 Ohms and a rated current of 150 mA. The component has a minimum Q factor of 30 and a self-resonant frequency of 100 MHz. Physical dimensions are 5.08 mm in length and 1.98 mm in diameter, designed for PCB mount installation.

Feature Summary

• Molded unshielded coil construction for consistent RF performance
• Axial leaded termination style suitable for through-hole PCB mounting
• Fixed inductance value with tight manufacturing tolerance

Applications

• RF circuit filtering
• Impedance matching networks
• Signal processing circuits

Procurement Notes

Verify the manufacturer designation carefully, as API Delevan assets may be associated with different branding entities depending on the supply chain source. Confirm RoHS compliance status explicitly, as historical data indicates potential lead content issues for this specific part number. Ensure the ordering suffix matches the required packaging format, typically reel or bulk, to align with production requirements.

Selection Notes

Select this component when a 4.7 µH inductance value is required with a 150 mA current rating. The unshielded design necessitates careful layout planning to minimize electromagnetic interference with adjacent components. Verify that the 100 MHz self-resonant frequency meets the operational bandwidth requirements of the target application circuit.

Part Context

This part belongs to the Delevan 0819 series of fixed RF inductors. The series offers various inductance values and tolerance options within a standardized axial package size. It serves as a passive component for radio frequency applications requiring stable inductive characteristics.

Replacement Considerations

Cross-reference with other 4.7 µH axial RF inductors from manufacturers such as Fastron or Coilcraft. Ensure equivalent DC resistance, current rating, and physical footprint compatibility before substitution.