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Shielding/ Housing Component – Computer, Electronic and Optical Product Manufacturing

Component Specifications

Definition

A specialized enclosure component designed for Intermediate Frequency (IF) amplifiers that provides electromagnetic interference (EMI) and radio frequency interference (RFI) shielding while offering mechanical protection and thermal management. It isolates the amplifier's sensitive circuitry from external electromagnetic fields and prevents internal emissions from affecting nearby components.

Working Principle

Operates on the principle of Faraday cage effect, where conductive materials create a barrier that attenuates electromagnetic fields through reflection, absorption, and multiple internal reflections. The housing redirects electromagnetic energy around the protected circuitry rather than allowing it to penetrate.

Materials

Typically aluminum alloys (6061, 5052), steel (cold-rolled, galvanized), copper alloys, or conductive plastics with metal coatings. May include gaskets made of conductive elastomers (silver-filled silicone, nickel-graphite) for seam sealing.

Technical Parameters

IP Rating IP54-IP67
Mounting Type Screw, snap-fit, or slide-in
Surface Finish Conductive paint, anodizing, or plating
Material Thickness 0.8-2.0 mm
Operating Temperature -40°C to +85°C
Shielding Effectiveness 40-100 dB @ 10 MHz - 1 GHz

Standards

IEC 61000-5-7, MIL-STD-461, ISO 11452-2, DIN EN 50147-1

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Shielding/ Housing.

Parent Products

This component is used in the following industrial products

IF Amplifier

An electronic amplifier that boosts the intermediate frequency (IF) signal in a Low-Noise Block Downconverter (LNB).

View Product Details

Engineering Analysis

Risks & Mitigation

Inadequate shielding leading to signal interference
Corrosion compromising conductivity
Thermal management failure
Mechanical stress causing cracks or deformation
Improper grounding creating ground loops

FMEA Triads

Trigger: Poor seam design or damaged gaskets
Failure: EMI leakage through gaps
Mitigation: Implement continuous conductive gaskets, minimize seams, use EMI finger stock, and conduct regular shielding effectiveness testing

Trigger: Material corrosion or oxidation
Failure: Reduced conductivity and shielding effectiveness
Mitigation: Apply protective coatings (anodizing, plating), use corrosion-resistant alloys, and implement proper environmental sealing

Trigger: Inadequate thermal design
Failure: Component overheating and performance degradation
Mitigation: Incorporate heat sinks, ventilation with EMI screens, thermal interface materials, and conduct thermal analysis during design

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

±0.2 mm for critical dimensions, flatness within 0.1 mm over 100 mm

Test Method

Shielding effectiveness tested per IEC 61000-5-7 using dual chamber method, mechanical testing per ISO 16750-3 for vibration and shock resistance

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

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 is the primary function of an IF amplifier shielding housing?

To protect sensitive intermediate frequency amplifier circuits from electromagnetic interference while containing internal emissions and providing mechanical protection.

How does material selection affect shielding performance?

Conductive materials like aluminum and copper provide better high-frequency shielding, while steel offers better low-frequency magnetic shielding. Material thickness and conductivity directly impact attenuation levels.

What maintenance is required for shielding housings?

Regular inspection of conductive gaskets and seams for damage, cleaning of contact surfaces to maintain conductivity, and checking for corrosion or physical deformation.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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.

Shielding/ Housing