B82442-A1223-K – EPCOS

Overview

The EPCOS B82442-A1223-K is a shielded, wirewound SMD power inductor designed for demanding applications requiring efficient energy storage and filtering. Its core strength lies in its robust ferrite construction and AEC-Q200 qualification, ensuring reliability in harsh automotive environments. A critical design consideration for this 22 µH component is the trade-off between its 480 mA saturation current and its 350 mΩ DC resistance; designers must balance the need for high current handling with minimizing power dissipation and voltage drop, especially in compact, thermally constrained power supply stages.

Key Features

• Inductance: 22 µH
• Tolerance: ±10%
• Max DC Current: 480 mA
• Max DC Resistance: 350 mΩ
• Operating Temperature Range: -55°C to +150°C
• Dimensions: 5.6 mm x 5 mm x 5 mm (2220 metric)

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.

• Switching regulator output filtering in automotive infotainment systems
• EMI suppression in sensor signal conditioning circuits
• Energy storage for DC-DC converters in advanced driver-assistance systems (ADAS)
• Power smoothing for high-efficiency LED drivers in automotive lighting