INDUSTRY COMPONENT

Metal Housing

EMI filter metal housing for electromagnetic interference shielding and protection

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Component Specifications

Definition
A precision-engineered metal enclosure designed specifically for EMI filters, providing electromagnetic interference (EMI) shielding, physical protection, heat dissipation, and structural support for filter components. It serves as both a protective case and an integral part of the filter's electromagnetic performance by creating a Faraday cage effect.
Working Principle
Acts as a conductive barrier that reflects and absorbs electromagnetic interference through the skin effect, preventing unwanted electromagnetic emissions from escaping (emission control) and protecting internal components from external interference (immunity). The housing's continuous conductive surface creates a low-impedance path to ground, effectively containing electromagnetic fields within the filter assembly.
Materials
Galvanized steel (SGCC), aluminum alloy (6061/6063), stainless steel (304/316), with surface treatments including zinc plating, powder coating, or anodizing for corrosion resistance and enhanced conductivity
Technical Parameters
  • IP Rating IP54/IP65
  • Material Thickness 1.0-2.0 mm
  • Surface Resistance <0.1 Ω/sq
  • Grounding Connection M6 threaded insert with star washer
  • Operating Temperature -40°C to +85°C
  • Shielding Effectiveness ≥40 dB @ 30 MHz - 1 GHz
Standards
IEC 61000-6-4, IEC 61000-6-2, MIL-STD-461, EN 55032, UL 94, ISO 12944

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Metal Housing.

EMI filter housing metal enclosure electromagnetic shielding EMI protection electrical housing Faraday cage EMC compliance industrial filter case Metal Housing Metal Housing in Electrical Equipment Manufacturing

Parent Products

This component is used in the following industrial products

EMI Filter

A passive electronic component designed to suppress electromagnetic interference (EMI) in industrial electrical systems.

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Engineering Analysis

Risks & Mitigation
  • Inadequate shielding due to poor seam design
  • Corrosion in harsh environments
  • Grounding failure leading to EMI leakage
  • Thermal management issues
  • Mechanical deformation affecting seal integrity
FMEA Triads
Trigger: Improper seam design or assembly
Failure: EMI leakage through gaps
Mitigation: Implement EMI gaskets, conductive seals, or welded seams; ensure proper overlap design
Trigger: Insufficient corrosion protection
Failure: Reduced conductivity and structural integrity
Mitigation: Apply appropriate surface treatments (zinc plating, powder coating); select corrosion-resistant materials for specific environments
Trigger: Poor thermal design
Failure: Overheating of filter components
Mitigation: Incorporate ventilation slots with EMI mesh, heat sinks, or thermal interface materials; ensure adequate surface area

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.5 mm for critical dimensions, flatness within 0.2 mm over 100 mm
Test Method
Shielding effectiveness per MIL-STD-285 or IEEE 299, salt spray testing per ASTM B117, IP rating testing per IEC 60529

Buyer Feedback

★★★★☆ 4.7 / 5.0 (10 reviews)

"The Metal Housing we sourced perfectly fits our Electrical Equipment Manufacturing production line requirements."

"Found 46+ suppliers for Metal Housing on CNFX, but this spec remains the most cost-effective."

"The technical documentation for this Metal Housing is very thorough, especially regarding technical reliability."

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Frequently Asked Questions

What is the primary function of an EMI filter metal housing?

The primary function is to provide electromagnetic shielding by containing EMI emissions from the filter components and protecting them from external interference, while also offering physical protection and heat dissipation.

Which materials are commonly used for EMI filter housings?

Common materials include galvanized steel for cost-effectiveness and good shielding, aluminum for lightweight applications with good thermal conductivity, and stainless steel for corrosive environments.

How does the housing affect EMI filter performance?

Proper housing design ensures continuous conductivity and proper grounding, which are critical for achieving required shielding effectiveness. Poor housing can compromise EMI performance by creating leakage paths.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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