USB EMI FILTERS
USB EMI Filters
Advanced USB EMI filters capable of passing clean data through the shield wall while suppressing both radiated and conducted emissions. Active DSP signal reconstruction for USB 3.1 Gen 2 SuperSpeed+ throughput and 60W of power, or passive LC filtering when USB 2.0 is sufficient or power is unavailable. No fiber, no media converters, no complicated installations.
The ACTIV Series
The Pasif Series
Three Demanding Applications.
SCIF / TEMPEST / Government
USB peripherals and serial data lines crossing the shield wall create an unmanaged emanation path. A DJM USB filter passes clean data through with no fiber converters, no waveguides, and no break in the boundary. Fully compatible with ICD-705 and TEMPEST installations.
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RF Testing / EMC
Test instruments, signal generators, and devices under test commonly use USB for control and data capture. Unfiltered USB cables crossing the chamber wall corrupt measurements and compromise CISPR compliance. DJM USB filters eliminate the noise at the boundary without affecting the measurement.
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Audiophile / Hi-Fi
USB DACs are sensitive to host-side noise and ground-loop interference traveling down the cable. The Pasif USB 2.0 cleans the USB connection between source and DAC without active components in the audio path. Passive LC filtering, no power required, no signal latency.
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Not Sure Which Filter Fits Your Application?
USB applications vary by speed, data profile, power requirements, and enclosure constraints. Our engineering team can recommend the right filter and mounting configuration for your installation.