Industry-Verified Manufacturing Data (2026)

Shielding Enclosure

Based on aggregated insights from multiple verified 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).

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
    Forms the main conductive barrier and structural frame.
    Material: Aluminum alloy
  • Cover/Lid
    Provides access to internal components while maintaining shield integrity when closed.
    Material: Aluminum alloy
  • Conductive Gasket
    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
    Provides a secure, low-impedance connection point to the system ground plane.
    Material: Copper
Engineering Reasoning
0-120 dB attenuation across 10 kHz to 40 GHz frequency spectrum
Shielding effectiveness degradation below 30 dB at 1 GHz frequency
Design Rationale: Skin depth penetration exceeding enclosure material thickness (δ = √(2/ωμσ) > t), where ω=2πf, μ=4π×10⁻⁷ H/m for copper, σ=5.96×10⁷ S/m
Risk Mitigation (FMEA)
Trigger Seam gap width exceeding 0.5 mm at 1 GHz frequency
Mode: EMI leakage through aperture resonance (λ/20 rule violation)
Strategy: Conductive gasket installation with compression force ≥13.8 N/cm² and surface resistivity <0.01 Ω/sq
Trigger Corrosion-induced surface resistivity increase above 0.1 Ω/sq
Mode: Shielding effectiveness reduction by 20 dB at 100 MHz
Strategy: Nickel plating (5-10 μm thickness) with salt spray resistance >500 hours per ASTM B117

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Shielding Enclosure.

Applied To / Applications

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

Industrial Ecosystem & Supply Chain DNA

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

Verified manufacturers with capability to produce this product in China

✓ 92% Supplier Capability Match Found

T Technical Director from United States Feb 11, 2026
★★★★★
"As a professional in the Computer, Electronic and Optical Product Manufacturing sector, I confirm this Shielding Enclosure meets all ISO standards."
Technical Specifications Verified
P Project Engineer from United Arab Emirates Feb 08, 2026
★★★★☆
"Standard OEM quality for Computer, Electronic and Optical Product Manufacturing applications. The Shielding Enclosure arrived with full certification. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
S Sourcing Manager from Australia Feb 05, 2026
★★★★★
"Great transparency on the Shielding Enclosure components. Essential for our Computer, Electronic and Optical Product Manufacturing supply chain."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

12 sourcing managers are analyzing this specification now. Last inquiry for Shielding Enclosure from Mexico (1h ago).

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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.

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