Common Mode Chokes

Common mode chokes are used in order to filter common mode electromagnetic interference (EMI) currents without de-rating under high currents and without causing signal degradation. Common mode chokes are applied to supply and return pairs of conductors and are ideal for EMI filtering of signal and power lines. Common mode chokes can withstand high DC currents without filtering performance degradation, which is an issue that can happen with differential mode filters such as small chip beads.

Types of Common Mode Chokes

There are many different kinds of common mode chokes and at GSP Electronics we stock many of the most common types categorized by case size / dimension, impedance, rated current, maximum DC resistance, packaging type and rated voltage. The parametric filters on our website can help refine your search results depending on the required specifications.

The most common sizes for rated voltage are 50 V, 250 V and 500 V. We also carry common mode chokes with rated voltage as high as 250 kV. Rated current can be between 0.4 mA and 23 A, with the most frequent common mode chokes having a rated current of 500 mA, 1A or 2 A.

Common Mode Chokes from GSP Electronics

GSP Electronics has a full selection of common mode choke filters and coils from several manufacturers that can be used to design a USB common mode choke, 3 (three) phase common mode choke, surface mount (SMD) common mode choke, high current common mode choke, Ethernet common mode choke, CAN bus common mode choke or for any application that might require a common mode choke filter or common mode choke coil. Simply choose from the common mode choke technical attributes below and your search results will quickly be narrowed to match your specific common mode choke application needs.