103R-152K

Overview

The Delevan 103R-152K is a fixed micro chip inductor designed for surface-mount technology applications. It features an unshielded wirewound construction with a standard non-standard lead termination style, suitable for PCB mounting. The component provides an inductance of 1.5 µH with a tolerance of ±10%. It supports a maximum DC current of 340 mA and exhibits a maximum DC resistance of 840 mOhms. Key RF performance metrics include a minimum Q factor of 22 and a self-resonant frequency of 115 MHz. The physical dimensions are 2.54 mm in length, 2.54 mm in width, and 1.91 mm in height.

Feature Summary

• Unshielded wirewound design for specific RF signal handling
• High self-resonant frequency capability for RF choke applications
• Compact surface-mount footprint for dense circuit board layouts

Applications

• RF filtering circuits
• Impedance matching networks
• General-purpose RF chokes

Procurement Notes

Verify the exact suffix designation during procurement, as datasheets may list variations such as 103R-152F or 103-152K. Confirm that the unshielded configuration aligns with your electromagnetic interference requirements. Ensure the supplier provides official API Delevan documentation to validate the 1.5 µH value and 340 mA current rating against your specific circuit constraints.

Selection Notes

Select this component when an unshielded inductor is required to minimize parasitic capacitance effects in high-frequency designs. The 1.5 µH value is appropriate for lower RF bands where higher inductance is needed compared to nanohenry-range chips. Consider the 840 mOhms DC resistance impact on power efficiency if the operating current approaches the 340 mA limit.

Part Context

This part belongs to the 103/R series of micro chip inductors manufactured by API Delevan. The series is characterized by small form factors suitable for SMT processes. Unlike shielded variants in other Delevan lines, this unshielded type offers distinct RF characteristics defined by its air-core or low-permeability magnetic path properties.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Verify compatibility with alternative unshielded 1.5 µH SMD inductors based on dimensional constraints (2.54 x 2.54 mm) and electrical parameters.