The EMCH340 is a series of common mode chokes manufactured by Eaton Bussmann. These chokes are designed to attenuate common-mode noise in electronic circuits, preventing interference and ensuring signal integrity. Common-mode noise refers to unwanted signals that are present equally on multiple lines relative to ground. Eaton Bussmann is a reputable manufacturer of circuit protection and EMI filtering components.

Applications:

• Power line filtering.
• USB data lines.
• Signal lines in communication equipment.
• Motor control circuits.
• Audio and video equipment.

Features:

• Suppression of common-mode noise.
• Compact size for space-constrained applications.
• High impedance over a wide frequency range.
• Low differential-mode impedance to minimize signal distortion.
• RoHS compliant.

Benefits:

• Improved electromagnetic compatibility (EMC) performance.
• Reduced radiated emissions.
• Enhanced signal integrity.
• Prevention of equipment malfunction due to noise.
• Compliance with regulatory standards.

Additional Details: Refer to the Eaton Bussmann datasheet for the EMCH340 series to determine the specific characteristics of this part, including its impedance versus frequency curve, current rating, voltage rating, and physical dimensions. Proper PCB layout is crucial for effective common-mode noise suppression. The choke should be placed as close as possible to the source of the noise or the point where the signal enters the circuit.