4310 EMI Feedthrough Filters Tusonix/CTS 4310 EMI Feedthrough Filters suppress unwanted EMI and allow a fast and mechanical bonding free from soldering. These EMI C filters cover a variety of voltage, attenuation, and capacitance ranges in a press-in mounting style. The Tusonix/CTS 4310 feedthrough filters have standard or custom pin lengths, press-fit, and solder type or threaded bushings. These filters operate at a temperature ranging from -55ºC to 125ºC.