---
title: "Shielding Housing"
industry: "Computer, Electronic and Optical Product Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:SHIELDING_HOUSING"
  data_integrity_hash: "d931c4ce58925c64daf7dfce576d4902"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:SHIELDING_HOUSING"
  data_source_uri: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/shielding-housing.md"
  official_resource_url: "https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/shielding-housing"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-125°C ambient temperature, 0-95% relative humidity non-condensing"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 150
    unit: "°C"
    consequence: "Thermal expansion mismatch between aluminum housing (23.1 μm/m·K) and internal epoxy potting (60-80 μm/m·K) creates 0.5-0.8 mm interfacial gaps at ΔT&gt;25°C, compromising Faraday cage integrity and allowing EMI leakage exceeding 30 dB attenuation degradation"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Corrosive chloride ion concentration exceeding 100 ppm in ambient atmosphere"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Apply 25-30 μm MIL-DTL-5541 Type II chromate conversion coating with hexavalent chromium content of 3.5-4.2 g/L"
  - node_2:
      trigger: "Mechanical vibration at 200-500 Hz resonance frequency with acceleration exceeding 5 g RMS"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement Nord-Lock wedge-locking washer system with 30° wedge angle and M5 thread locking compound meeting ISO 10964 Class 10"
bom_nodes:
  housing-body:
    type: "component"
    urn: "URN:CNFX:ME:HOUSING_BODY"
    interface_type: "physical-logic-coupled"
  cover-plate:
    type: "component"
    urn: "URN:CNFX:ME:COVER_PLATE"
    interface_type: "physical-logic-coupled"
  emi-gasket:
    type: "component"
    urn: "URN:CNFX:ME:EMI_GASKET"
    interface_type: "physical-logic-coupled"
  mounting-brackets:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_BRACKETS"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/shielding-housing.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "338809df17916837099854c85a1b1102703f02de9a0819a8961bf29100c46199"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Shielding Housing

## 1. Technical Definition
A protective enclosure designed to contain and shield EMI filter components from external electromagnetic interference.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-125°C ambient temperature, 0-95% relative humidity non-condensing**. Failure boundary: **150°C internal temperature sustained for 120 seconds, 100% relative humidity with condensation present**, Mechanism: **Thermal expansion mismatch between aluminum housing (23.1 μm/m·K) and internal epoxy potting (60-80 μm/m·K) creates 0.5-0.8 mm interfacial gaps at ΔT&gt;25°C, compromising Faraday cage integrity and allowing EMI leakage exceeding 30 dB attenuation degradation**.

### 2.1 Analytical Physics Model
Governed by the **EMI Shielding Effectiveness (SE)**:

> **Primary Equation**: $SE = 20 \log(\frac{E_{in}}{E_{out}})$  
> **Engineering Impact**: Ensures control stability in high-frequency inverter zones.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| E_{in} | Incident Field | Engineering Constant |
| E_{out} | Transmitted Field | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Corrosive chloride ion concentration exceeding 100 ppm in ambient atmosphere | 8 | Pitting corrosion penetration depth reaching 0.3 mm on 5052-H32 aluminum housing | Apply 25-30 μm MIL-DTL-5541 Type II chromate conversion coating with hexavalent chromium content of 3.5-4.2 g/L |
| Mechanical vibration at 200-500 Hz resonance frequency with acceleration exceeding 5 g RMS | 8 | Fastener loosening torque dropping below 1.2 N·m from initial 2.5 N·m specification | Implement Nord-Lock wedge-locking washer system with 30° wedge angle and M5 thread locking compound meeting ISO 10964 Class 10 |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | mm | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **EMI Testing Chamber**, **Sheet Metal Press Brake**, **Automated Assembly Conveyor**  
**Downstream Applications**: Medical Imaging Equipment, Telecommunications Base Stations, Industrial Control Panels  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What materials are used in this shielding housing?
**A**: This shielding housing is constructed from galvanized steel, aluminum alloy, or copper alloy, providing durable protection against electromagnetic interference for EMI filter components.

### Q: How does this housing protect EMI filter components?
**A**: The housing acts as a protective enclosure that shields sensitive EMI filter components from external electromagnetic interference, ensuring optimal performance and reliability in electronic systems.

### Q: What are the main components included in the BOM?
**A**: The bill of materials includes a cover plate, EMI gasket, housing body, and mounting brackets, ensuring complete assembly and secure installation for EMI filter protection.

## 6. Manufacturing Compliance
- ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Shielding Housing](https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/shielding-housing)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **4** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: SHIELDING_HOUSING | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 0db95d36
