The ACH4518-470 is a common mode choke manufactured by TDK Corporation, specifically designed to suppress common mode noise in electronic circuits. It is part of the ACH series, known for its compact size and high performance in noise filtering applications. This choke is particularly effective in mitigating noise on data lines and power lines, ensuring signal integrity and electromagnetic compatibility (EMC).

Applications

• Suppression of common mode noise in USB interfaces.
• Noise filtering in differential signal lines, such as those used in automotive CAN bus systems.
• Noise reduction in Ethernet interfaces.
• Power line noise filtering in electronic devices.
• Used in consumer electronics such as smartphones, tablets, and laptops to meet EMC regulations.

Features

• Compact dimensions (4.5 x 1.8 x 1.8 mm).
• High common mode impedance across a wide frequency range.
• Excellent noise suppression characteristics.
• Designed for surface mount technology (SMT).
• RoHS compliant, ensuring environmental safety.

Benefits

• Improves signal integrity by effectively reducing common mode noise.
• Enhances EMC performance, minimizing interference with other devices.
• Reduces susceptibility to external noise, ensuring reliable operation.
• Space-saving design allows for use in compact electronic devices.
• Contributes to environmentally friendly product design.

Specifications

The ACH4518-470 features a common mode impedance of 47 ohms at 100 MHz. It is designed to handle a rated current of typically 500mA, with a low DC resistance to minimize power loss. The operating temperature range is generally -40°C to +85°C. The device is intended for reflow soldering processes common in SMT assembly.