Structured Manufacturing Data (2026)

Shielding Enclosure

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Shielding Enclosure used in the Computer, Electronic and Optical Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Shielding Enclosure is characterized by the integration of Enclosure Body and Cover/Lid. In industrial production environments, manufacturers listed on CNFX commonly emphasize Aluminum alloy construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A protective housing designed to isolate electronic components from electromagnetic interference (EMI) and radio frequency interference (RFI).

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Product Specifications

Technical details and manufacturing context for Shielding Enclosure

Definition
In a Low-Noise Amplifier (LNA), the shielding enclosure is a critical component that surrounds the amplifier's sensitive circuitry. Its primary function is to create a Faraday cage effect, preventing external electromagnetic fields from coupling into the amplifier's input stage, which would degrade the signal-to-noise ratio and introduce unwanted noise. Conversely, it also contains electromagnetic emissions from the LNA itself, preventing them from interfering with nearby electronic equipment.
Working Principle
The enclosure is constructed from conductive materials (typically metals) to form a continuous, grounded barrier. This barrier reflects and/or absorbs incoming electromagnetic waves, preventing their penetration. The effectiveness relies on the material's conductivity, thickness, and the integrity of seams and openings, which are minimized or specially treated (e.g., with conductive gaskets) to maintain the shield's continuity.
Common Materials
Aluminum alloy, Copper alloy, Nickel-plated steel
Technical Parameters
  • Shielding Effectiveness (SE) - The measure of attenuation of electromagnetic energy passing through the enclosure, typically specified over a frequency range (e.g., 30 MHz to 1 GHz). (dB) Customizable
Components / BOM
  • Enclosure Body Part
    Forms the main conductive barrier and structural frame.
    Material: Aluminum alloy
  • Cover/Lid Part
    Provides access to internal components while maintaining shield integrity when closed.
    Material: Aluminum alloy
  • Conductive Gasket Part
    Seals the gap between the body and cover to ensure electrical continuity across the seam.
    Material: Silicone with embedded metal particles
  • Feedthrough Filter
    Allows power and signal cables to pass through the enclosure while filtering out high-frequency noise.
    Material: Ceramic capacitor elements in a metal housing
  • Grounding Lug Part
    Provides a secure, low-impedance connection point to the system ground plane.
    Material: Copper

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Shielding Enclosure.

EMI shielding enclosure for electronics RFI protective housing aluminum alloy conductive gasket shielding enclosure grounding lug EMI enclosure feedthrough filter shielding cabinet

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Low-Noise Amplifier
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Test Fixture / DUT Interface
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Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric to 1.5 bar
other spec: EMI/RFI shielding effectiveness: 60-100 dB (depending on frequency)
temperature: -40°C to +85°C
Media Compatibility
✓ Electronics assembly clean rooms ✓ Medical device testing labs ✓ Telecommunications equipment racks
Unsuitable: High-voltage arc discharge environments
Sizing Data Required
  • Maximum component dimensions (LxWxH)
  • Required shielding effectiveness (dB)
  • Number and type of cable/connector penetrations

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Corrosion
Cause: Exposure to corrosive environments (e.g., chemicals, moisture, salt spray) leading to material degradation and loss of shielding effectiveness.
Mechanical damage
Cause: Physical impacts, vibration, or improper handling causing dents, cracks, or gaps that compromise structural integrity and electromagnetic shielding.
Maintenance Indicators
  • Visible corrosion, rust, or pitting on enclosure surfaces
  • Audible rattling or loose components indicating structural compromise
Engineering Tips
  • Apply protective coatings (e.g., zinc plating, powder coating) and implement regular corrosion inspections in harsh environments
  • Install vibration dampeners and ensure proper mounting/securing to prevent mechanical stress and maintain shielding continuity

Compliance & Manufacturing Standards

Reference Standards
ISO 11439:2013 (Gas cylinders - High pressure cylinders for the on-board storage of natural gas as a fuel for automotive vehicles) ANSI/ESD S20.20-2021 (Protection of Electrical and Electronic Parts, Assemblies and Equipment) DIN EN 50147-1:2017 (Anechoic chambers - Part 1: Shield attenuation measurement)
Manufacturing Precision
  • Shielding Effectiveness: +/-3 dB across specified frequency range
  • Dimensional Flatness: 0.5 mm per meter of surface
Quality Inspection
  • Shielding Effectiveness Test (per MIL-STD-285 or IEEE 299)
  • Visual and Dimensional Inspection (per ISO 2768-1 general tolerances)

Factories Producing Shielding Enclosure

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What materials are used in this shielding enclosure and why?

This enclosure uses aluminum alloy for lightweight structural integrity, copper alloy for superior conductivity, and nickel-plated steel for corrosion resistance. These materials provide optimal electromagnetic interference (EMI) and radio frequency interference (RFI) shielding.

How does the conductive gasket improve shielding effectiveness?

The conductive gasket creates a continuous conductive seal between the enclosure body and cover, preventing electromagnetic leakage through seams and gaps. This ensures consistent shielding performance across the entire enclosure surface.

What applications is this shielding enclosure designed for?

This enclosure is specifically designed for computer, electronic, and optical product manufacturing where sensitive components require protection from electromagnetic interference. Common applications include medical devices, telecommunications equipment, laboratory instruments, and industrial control systems.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Computer, Electronic and Optical Product Manufacturing.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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