---
title: "Connection Head"
industry: "Computer, Electronic and Optical Product Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:CONNECTION_HEAD"
  data_integrity_hash: "0cf13cdd910ea7c393aa3a5cf7c26151"
  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:CONNECTION_HEAD"
  data_source_uri: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/connection-head.md"
  official_resource_url: "https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/connection-head"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "-40°C to 125°C ambient temperature, 0-100% relative humidity non-condensing, IP67 ingress protection rating"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 150
    unit: "°C"
    consequence: "Coefficient of thermal expansion mismatch between polymer housing (CTE 80×10⁻⁶/K) and metal contacts (CTE 17×10⁻⁶/K) causing interfacial delamination at ΔT&gt;90K"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Galvanic corrosion between dissimilar metals (copper contacts and aluminum housing) in presence of chloride ions &gt;100ppm"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Dielectric isolation coating with 50μm Parylene-C (permeability &lt;0.1g·mm/m²·day) and cathodic protection at -0.85V vs SCE"
  - node_2:
      trigger: "Polymer creep under sustained mechanical load &gt;30N at 85°C for &gt;10⁴ hours"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Glass-fiber reinforced PPS (40% fill) with creep modulus &gt;5GPa at 150°C and strain limit design at 0.3%"
bom_nodes:
  terminal-block:
    type: "part"
    urn: "URN:CNFX:ME:TERMINAL_BLOCK"
    interface_type: "physical-logic-coupled"
  housing:
    type: "component"
    urn: "URN:CNFX:ME:HOUSING"
    interface_type: "physical-logic-coupled"
  cable-gland:
    type: "part"
    urn: "URN:CNFX:ME:CABLE_GLAND"
    interface_type: "physical-logic-coupled"
  cover:
    type: "component"
    urn: "URN:CNFX:ME:COVER"
    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/connection-head.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "c153213d9754a68570abe057dc668fc8344cb5b0d1fc494b83ac32e748945558"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Connection Head

## 1. Technical Definition
The housing and interface component of a temperature sensor that provides electrical connections and environmental protection.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **-40°C to 125°C ambient temperature, 0-100% relative humidity non-condensing, IP67 ingress protection rating**. Failure boundary: **Thermal expansion mismatch exceeding 0.5% strain at 150°C, moisture ingress exceeding 1g/m³ at 85°C, mechanical stress exceeding 50N·m torque**, Mechanism: **Coefficient of thermal expansion mismatch between polymer housing (CTE 80×10⁻⁶/K) and metal contacts (CTE 17×10⁻⁶/K) causing interfacial delamination at ΔT&gt;90K**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Galvanic corrosion between dissimilar metals (copper contacts and aluminum housing) in presence of chloride ions &gt;100ppm | 8 | Contact resistance increase from 10mΩ to &gt;100mΩ within 1000 hours | Dielectric isolation coating with 50μm Parylene-C (permeability &lt;0.1g·mm/m²·day) and cathodic protection at -0.85V vs SCE |
| Polymer creep under sustained mechanical load &gt;30N at 85°C for &gt;10⁴ hours | 8 | Housing deformation exceeding 2mm causing seal failure and IP rating degradation | Glass-fiber reinforced PPS (40% fill) with creep modulus &gt;5GPa at 150°C and strain limit design at 0.3% |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Terminal Block](https://cnfx.com/llms/industry/electrical-equipment-manufacturing/product/terminal-block.md) `(Standalone System)`
- [Cable Gland](https://cnfx.com/llms/industry/electrical-equipment-manufacturing/product/cable-gland.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Automated Assembly System**, **Environmental Test Chamber**, **Laser Marking Machine**  
**Downstream Applications**: Industrial Process Controllers, Medical Diagnostic Equipment, Automotive Engine Management Systems  

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

### Q: What materials are used in connection heads for temperature sensors?
**A**: Connection heads are typically constructed from stainless steel for durability, aluminum for lightweight strength, and engineering plastics like PBT or PA for electrical insulation and corrosion resistance.

### Q: How does a connection head protect temperature sensors in electronic manufacturing?
**A**: The connection head provides environmental sealing against dust, moisture, and contaminants while housing the terminal block for secure electrical connections, ensuring reliable sensor performance in manufacturing environments.

### Q: What components make up a standard temperature sensor connection head BOM?
**A**: A complete connection head assembly includes the main housing, terminal block for wiring connections, cable gland for secure cable entry, and protective cover to enclose the electrical components.

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

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Connection Head](https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/connection-head)**

### 🌐 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**: CONNECTION_HEAD | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: beb6cea0
