B82472G4224M – EPCOS

Overview

The EPCOS B82472G4224M is a shielded, wirewound power inductor designed for robust energy storage and filtering in demanding electronic circuits. Its core ferrite material and compact 7.3 mm x 7.3 mm x 3.5 mm SMD package offer excellent EMI suppression, a critical consideration in high-density power management designs. While the 220 µH inductance and 400 mA DC current rating are substantial, designers must carefully balance the 20% inductance tolerance against the 300 mA saturation current to prevent performance degradation under peak load conditions.

Key Features

• Inductance: 220 µH
• Tolerance: ±20%
• Maximum DC Current: 400 mA
• Saturation Current: 300 mA
• Maximum DC Resistance: 1.1 Ω
• Dimensions: 7.3 mm x 7.3 mm x 3.5 mm

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.

• DC-DC converter output filtering
• Power sequencing for automotive control units
• EMI suppression in switching power supplies
• Energy buffering in battery management systems