B82432A1103K – EPCOS

Overview

The EPCOS B82432A1103K000 is a 10 µH unshielded wirewound drum core inductor, critically designed for applications demanding precise impedance matching and filtering. Its primary function is to store energy in a magnetic field, thereby influencing circuit behavior at specific frequencies. A key design consideration is the trade-off between its relatively high DC resistance (980mΩ max) and its Q factor (45 @ 2.52MHz); while the DCR can contribute to power loss in high-current DC paths, it’s a necessary consequence of the winding density required to achieve the specified inductance in a compact SMD package, impacting thermal management strategies.

Key Features

• Inductance: 10 µH ±10%
• Current Rating: 320 mA
• DC Resistance (DCR): 980 mΩ Max
• Q Factor: 45 @ 2.52 MHz
• Self-Resonant Frequency: 22 MHz
• Package: 1812 (4532 Metric) SMD, 4.50mm x 3.20mm x 3.20mm

Applications

The component is engineered for deployment in systems requiring high reliability and performance under specific operating conditions. It provides functional stability across the stated design envelope.

• RF signal path impedance stabilization in wireless transceivers.
• Filtering of switching noise in DC-DC converter output stages.
• Energy storage elements in resonant circuits for signal conditioning.
• Choke coils for blocking unwanted AC components in power supplies.