Shielded Feedthrough Filters
Ranatec offers a variety of RF shielded EMI Feedthrough Filters for LAN, USB, HDMI, and AC power, with high-performance filter suppression over a large frequency range.
The Ranatec feedthrough filters have been trusted by customers since their launch in 2012 and can be used for all types of applications where signals need to be fed through a shielded wall.
Feedthrough Filter RI 4170
USB 2.0, A-A connectors, fabric mount
Enables USB 2.0 signal transmission through RF shielded fabric enclosures, such as pouches and bags, providing 75 dB suppression at key frequencies. The fabric is fixed between the filter housing and a washer, with four M3 screws, for simple and reliable mounting. The cutout dimensions are the same as for RI 4171, making it modular.
Feedthrough Filter RI 4171
USB 3.0, A-A connectors, fabric mount
Enables USB 3.0 signal transmission through RF shielded fabric enclosures, such as pouches and bags, providing 75 dB suppression at key frequencies. The fabric is fixed between the filter housing and a washer by four M3 screws, for simple and reliable mounting. The cutout dimensions are the same as for RI 4170, making it modular.
Feedthrough Filter RI 4182
LAN 1 Gbps, RJ45 connectors, panel mount
Enables Ethernet signal transmission through shielded enclosures, providing 75 dB suppression at key frequencies.
Feedthrough Filter RI 4184
USB 2.0, A-A connectors, dual port, panel mount
Enables USB 2.0 signal transmission through shielded enclosures with two USB ports in a compact design, supporting up to 480 Mbps.
FAQs
EMI feedthrough filters are specialized filters designed to block high-frequency electromagnetic interference at the point where conductors pass through a shielded barrier, such as a panel or enclosure wall. They allow desired low-frequency signals to pass while attenuating high-frequency noise, typically by using capacitors around the feedthrough conductor.
An EMI filter is a component or circuit that blocks unwanted high-frequency electromagnetic noise from entering or leaving electronic equipment. It typically uses inductors, capacitors, or both, arranged to attenuate noise across specific frequency ranges and is widely used to improve signal integrity and reduce interference.
If EMI feedthrough filters fail, high-frequency noise may bypass the shielded barrier, causing interference in sensitive circuits or equipment within the enclosure. This could lead to malfunctions, degraded performance, or even damage to sensitive components, especially in environments requiring high reliability and noise control.
EMI (Electromagnetic Interference) filters are designed specifically to block unwanted interference from signals or power lines. EMC (Electromagnetic Compatibility) filters encompass a broader range of solutions to ensure devices can operate together without mutual interference. While an EMI filter blocks interference, an EMC filter also ensures that a device both resists interference and does not emit it excessively, helping maintain overall electromagnetic compatibility.
