---
title: "Coil Assembly"
industry: "Computer, Electronic and Optical Product Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:COIL_ASSEMBLY"
  data_integrity_hash: "abf109b724c20f5f40226f80626dc326"
  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:COIL_ASSEMBLY"
  data_source_uri: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/coil-assembly.md"
  official_resource_url: "https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/coil-assembly"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-5.0 mT magnetic field strength, -40°C to +125°C ambient temperature, 3-24 VDC excitation voltage"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 500
    unit: "VDC"
    consequence: "Curie temperature transition at 150°C causing permanent magnetic property loss, dielectric breakdown at 15 kV/mm insulation stress, magnetostrictive fatigue at &gt;10⁷ cycles"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Electromagnetic interference from adjacent power conductors carrying &gt;100 A at 60 Hz"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Mu-metal shielding with 40 dB attenuation at 50-1000 Hz, twisted-pair wiring with 1 mm pitch"
  - node_2:
      trigger: "Mechanical vibration at 120 Hz resonance frequency with &gt;5 g acceleration"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Epoxy potting with 3.5 GPa modulus, strain relief loops with 8 mm minimum bend radius"
bom_nodes:
  coil-winding:
    type: "component"
    urn: "URN:CNFX:ME:COIL_WINDING"
    interface_type: "physical-logic-coupled"
  core:
    type: "component"
    urn: "URN:CNFX:ME:CORE"
    interface_type: "physical-logic-coupled"
  bobbin:
    type: "component"
    urn: "URN:CNFX:ME:BOBBIN"
    interface_type: "physical-logic-coupled"
  terminals:
    type: "component"
    urn: "URN:CNFX:ME:TERMINALS"
    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/coil-assembly.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "f755c977f8b8d2e64c5ec9d09b2c002403ddf7eb756f7173760c772f7b73ba53"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Coil Assembly

## 1. Technical Definition
A precision electromagnetic component within a detection sensor head that generates or senses magnetic fields for detection purposes.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-5.0 mT magnetic field strength, -40°C to +125°C ambient temperature, 3-24 VDC excitation voltage**. Failure boundary: **Insulation breakdown at &gt;500 VDC, magnetic saturation at &gt;7.5 mT, thermal degradation at &gt;150°C core temperature**, Mechanism: **Curie temperature transition at 150°C causing permanent magnetic property loss, dielectric breakdown at 15 kV/mm insulation stress, magnetostrictive fatigue at &gt;10⁷ cycles**.

### 2.1 Analytical Physics Model
Governed by the **Joule Heating & Thermal Resistance**:

> **Primary Equation**: $P = I^2 R = \frac{V^2}{R}$  
> **Engineering Impact**: Governs heating element sizing for shrink tunnels/sealers.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| I | Current | Engineering Constant |
| R | Resistance | Engineering Constant |
| V | Voltage | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Electromagnetic interference from adjacent power conductors carrying &gt;100 A at 60 Hz | 8 | Induced eddy currents exceeding 2 A causing 85°C localized heating and insulation degradation | Mu-metal shielding with 40 dB attenuation at 50-1000 Hz, twisted-pair wiring with 1 mm pitch |
| Mechanical vibration at 120 Hz resonance frequency with &gt;5 g acceleration | 8 | Wire fatigue fracture at stress concentration points after 2×10⁸ cycles | Epoxy potting with 3.5 GPa modulus, strain relief loops with 8 mm minimum bend radius |

## 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**: **Coil Winding Machine**, **Vacuum Impregnation System**, **Magnet Wire Tester**  
**Downstream Applications**: Proximity Sensors, Position Sensors, Current Sensors  

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

### Q: What applications are coil assemblies used for in optical product manufacturing?
**A**: Coil assemblies are critical components in detection sensors for position sensing, proximity detection, and motion control systems within optical and electronic devices.

### Q: How does the ferrite core material affect coil performance?
**A**: Ferrite cores enhance magnetic flux density and efficiency, providing stable performance with minimal energy loss, making them ideal for precision detection applications.

### Q: What specifications should I consider when selecting a coil assembly?
**A**: Key specifications include inductance value, resistance, operating temperature range, wire gauge, insulation class, and dimensional tolerances for your specific sensor design.

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

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### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Coil Assembly](https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/coil-assembly)**

### 🌐 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**: COIL_ASSEMBLY | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: cea47706
