DC LC Electromagnetic Interference Filter – 2A / 4A / 10A / 20A

Keep your electronics running cleanly and efficiently with this compact DC LC EMI Filter. Engineered to suppress high-frequency electromagnetic interference (EMI), this filter helps improve audio clarity and image sharpness across a wide range of DC-powered electronic devices. Whether you're protecting sensitive circuits, reducing signal noise in audio systems, or ensuring EMC/FCC compliance in your builds, this filter delivers dependable performance in a space-saving form factor.

Key Features

High-Frequency Noise Suppression: Effectively reduces electromagnetic interference to protect and improve the performance of connected electronics.
Multiple Current Ratings: Available in 2A, 4A, 10A, and 20A versions — choose the rating that matches your application's requirements.
EMI / EMC / FCC Compatible: Designed to support compliance with EMI, EMC, and FCC standards for electronics builds and modifications.
LC Filter Design: Utilizes an inductor-capacitor (LC) circuit topology for efficient broadband noise attenuation on DC power lines.
Compact & Lightweight: Measures just 78 × 42 × 23 mm (3.07 × 1.65 × 0.91 in), making it easy to integrate into enclosures, panels, or DIY setups.
4 Color Options: Select from four color variants to suit your project's aesthetic or organizational needs.
Plug-and-Play Ready: No complex setup required — install it inline on your DC power line and experience cleaner signal performance immediately.

Specifications

Type: DC LC EMI Filter
Current Ratings: 2A, 4A, 10A, 20A (sold per variant)
Standards: EMI / EMC / FCC
Dimensions: 78 × 42 × 23 mm / 3.07 × 1.65 × 0.91 in
Color Options: 4 variants available
Brand: Zpaxo

Ideal For

DIY electronics projects and custom builds
Audio and video equipment noise reduction
DC power supply line filtering
Hobbyist and professional electronics bench setups
Ensuring EMC/FCC compliance in prototypes and finished products

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Frequently Asked Questions

Q: What does a DC LC EMI filter do for my electronics?

A: A DC LC EMI filter suppresses high-frequency electromagnetic interference on DC power lines using an inductor-capacitor (LC) circuit. This helps reduce noise that can degrade audio quality, distort video signals, or interfere with sensitive electronic components — resulting in cleaner, more stable performance from your devices.

Q: Which current rating should I choose — 2A, 4A, 10A, or 20A?

A: Select the current rating that matches or slightly exceeds the maximum operating current of your DC circuit. For small electronics and low-power devices, 2A or 4A is typically sufficient. For higher-power applications such as motors, amplifiers, or larger DC power supplies, opt for the 10A or 20A variant to ensure safe and effective filtering.

Q: Is this EMI filter compatible with EMC and FCC standards?

A: Yes. This DC LC filter is designed to support EMI, EMC, and FCC compliance requirements, making it a useful component when building or modifying electronics that need to meet regulatory noise emission standards.

Q: How do I install this DC LC EMI filter?

A: Installation is straightforward — wire the filter inline on your DC power line, connecting the input to your power source and the output to your load. No special tools or complex configuration are required. Always ensure the current rating of the filter matches your circuit's specifications before installation.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.