The Mission Darkness Core Ferrite Series offers a versatile lineup of clip-on ferrite cores (also referred to as ferrite sleeves) designed to suppress electromagnetic interference (EMI) and noise filtering across a wide range of frequencies, cable types, electronic systems, and environments. Ferrite cores are passive electronic components made from ceramic compounds with nickel-zinc, and a protective ABS snap enclosure casing with internal locking teeth. The design allows them to snap open and closed repeatedly without degradation. Each ferrite includes side slots for zip ties or panel mounting.
All of our ferrites feature a round center, which allows them to fit snugly around cables and wires. The outer shape—whether circular, square, or octagonal—varies for both functional and ergonomic reasons:
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Circular Exterior: Offers a compact, low-profile form factor. Ideal for tight spaces or when a smooth, uniform shape is preferred for aesthetics or handling.
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Square Exterior: Provides flat surfaces for easy stacking, mounting, or labeling. This shape is often used in structured installations where ferrites are secured alongside other components.
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Octagonal Exterior: Designed for enhanced grip and tool-assisted installation. The angled surfaces make it easier to handle and apply torque, especially when installing onto thicker cables or in hard-to-reach locations.
Whether you’re outfitting a digital forensics workspace, setting up secure communications, managing electronics in an RF-sensitive environment, reducing power line noise, eliminating buzz from audio systems, or improving shielding in sensitive electronics setups, these ferrites provide a tool-free, effective solution to ensure cleaner, more reliable signals.
Check the internal diameter of each variation to choose the best ferrite for your cable size and application. Each ferrite type is available individually or as part of a 5-piece set, giving you the flexibility to select exactly what you need—or try multiple options to see what works best for your setup.