The PA4390.331BHLT is a common mode choke manufactured by Pulse. It is designed to suppress common mode noise in various electronic circuits. Common mode chokes are passive electronic components used to attenuate unwanted electromagnetic interference (EMI) signals that propagate along multiple conductors simultaneously.

Applications

• USB Interfaces
• CAN Bus Systems
• Ethernet Interfaces
• Power Line Communication (PLC)
• Signal and Data Lines

Features

• High common mode impedance
• Low differential mode impedance
• Compact size
• Surface mount technology (SMT)
• High current handling capacity
• Wide operating temperature range

Benefits

• Effective suppression of common mode noise
• Improved signal integrity
• Reduced EMI emissions
• Increased system reliability
• Simplified PCB layout
• Compliance with regulatory standards

Additional Details

The PA4390.331BHLT features a high common mode impedance over a broad frequency range, effectively attenuating noise signals without significantly affecting the desired differential signals. Its low differential mode impedance ensures minimal signal distortion. The compact size and SMT design facilitate easy integration into printed circuit boards (PCBs). The choke is designed to handle high currents, making it suitable for power line applications as well as signal lines. It is constructed using materials that provide stable performance over a wide temperature range. The '331' indicates an inductance value, typically expressed in microhenries (µH). The specific inductance and impedance characteristics are documented in the product datasheet.

The physical dimensions, rated current, DC resistance, and other electrical characteristics are crucial for proper selection and application. Refer to the manufacturer's datasheet for detailed specifications and recommended operating conditions. Proper application of the choke is essential to ensure effective noise suppression and optimal system performance. It is usually placed near the connector or interface where the noise is likely to enter the system.