The TTDLF4000L is a series of high-performance, surface-mount, common mode chokes manufactured by Coilcraft. These chokes are designed to suppress common mode noise in differential signal lines, improving signal integrity and reducing electromagnetic interference (EMI). They are particularly suitable for high-speed data interfaces such as USB, Ethernet, and HDMI.

Applications

• USB Interfaces
• Ethernet Interfaces
• HDMI Interfaces
• CAN Bus Systems
• LVDS Data Transmission
• Signal Line Filtering

Features

• Surface Mount Package
• High Common Mode Attenuation
• Low Differential Mode Insertion Loss
• Excellent Impedance Matching
• Compact Size
• RoHS Compliant

Benefits

• Reduces common mode noise, improving signal integrity and system performance.
• Minimizes signal degradation due to low differential mode insertion loss.
• Ensures compatibility with high-speed data interfaces.
• Facilitates easy integration into circuit boards with surface mount design.
• Compliant with environmental regulations (RoHS).

Additional Details

The TTDLF4000L series is characterized by its common mode impedance, differential mode impedance, insertion loss, and return loss. The operating frequency range is a critical parameter, determining the effectiveness of the choke at specific frequencies. The current rating and DC resistance are important for power handling capabilities. The physical dimensions and pad layout are crucial for proper mounting on the PCB. Refer to the Coilcraft datasheet for detailed specifications, performance graphs, and application notes to optimize noise suppression in your specific application. The datasheet specifies SRF(self-resonant frequency) along with testing conditions.