B82476A1104M – EPCOS

Overview

The EPCOS B82476A1104M is a robust, unshielded wirewound drum core inductor designed for demanding applications requiring precise current handling and stable inductance. Its primary function is energy storage and filtering in DC-DC converters and power supply circuits. A critical design consideration for this component is the trade-off between its relatively high inductance (100 µH) and its DC resistance (230 mΩ max); while the inductance is suitable for smoothing ripple in moderate power systems, the DCR can introduce measurable power loss, necessitating careful thermal management in high-duty cycle applications.

Key Features

• Inductance: 100 µH ±20%
• Current Rating: 1.3 A
• Saturation Current (Isat): 1.2 A
• DC Resistance (DCR): 230 mΩ Max
• Operating Temperature: -55°C to 150°C
• Dimensions: 12.95mm x 9.40mm x 5.08mm (L x W x H)

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.

• Input filtering for switch-mode power supplies (SMPS)
• Energy storage elements in buck/boost converter topologies
• Choke coils for audio amplifier output stages
• EMI suppression in sensitive analog signal paths