ACM2012-900-2P – TDK

Overview

The TDK ACM2012-900-2P is a high-performance 2-channel common mode choke designed for effective EMI suppression in signal lines. Its core strength lies in achieving a significant impedance of 90 Ohms at 100 MHz with a compact 0805 footprint, enabling miniaturization without compromising noise attenuation. A critical design consideration for engineers is balancing this high impedance with the inherent DC resistance (190 mOhms), which can impact power efficiency and introduce voltage drops in high-current applications, necessitating careful current derating analysis.

Key Features

• 2-Channel Signal Line Common Mode Filter
• Inductance: 200 nH per channel
• Impedance: 90 Ohms @ 100 MHz
• Maximum DC Current: 400 mA
• Maximum DC Resistance: 190 mOhms
• Package: 0805 (2012 metric) – 2.0mm x 1.2mm x 1.3mm

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.

• High-speed data line noise filtering (e.g., USB, HDMI)
• EMI reduction in display interfaces
• Signal integrity enhancement in automotive communication buses
• Power sequencing noise mitigation for sensitive ICs