---
title: "Strain Relief/Backshell"
industry: "Computer, Electronic and Optical Product Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:STRAIN_RELIEFBACKSHELL"
  data_integrity_hash: "623216bbbfeb6a76d7101a44237731e3"
  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:STRAIN_RELIEFBACKSHELL"
  data_source_uri: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/strain-reliefbackshell.md"
  official_resource_url: "https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/strain-reliefbackshell"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-50 N·m torque application, -55°C to 125°C temperature range"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 15
    unit: "N"
    consequence: "Polymer chain scission under cyclic mechanical stress exceeding 0.5% strain amplitude, glass transition temperature (Tg) crossover at 85°C for thermoplastic elastomers"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Cable bending radius violation below 6× cable diameter"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integral strain relief boot with 8 mm minimum bend radius limiter"
  - node_2:
      trigger: "Thermal cycling between -40°C and 105°C at 2 cycles/hour"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Fluorosilicone compound with 200% elongation at -55°C"
bom_nodes:
  clamping-mechanism:
    type: "part"
    urn: "URN:CNFX:ME:CLAMPING_MECHANISM"
    interface_type: "physical-logic-coupled"
  backshell-body:
    type: "component"
    urn: "URN:CNFX:ME:BACKSHELL_BODY"
    interface_type: "physical-logic-coupled"
  sealing-gasket:
    type: "component"
    urn: "URN:CNFX:ME:SEALING_GASKET"
    interface_type: "physical-logic-coupled"
  grounding-lug:
    type: "component"
    urn: "URN:CNFX:ME:GROUNDING_LUG"
    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/strain-reliefbackshell.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "74c957ba499805b9210fbb19d1e832d5f15aca581b1c79bdbe3eee079f72c351"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Strain Relief/Backshell

## 1. Technical Definition
A protective component that secures cables and prevents mechanical stress at the connection point of an ATE connector.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-50 N·m torque application, -55°C to 125°C temperature range**. Failure boundary: **Cable retention force drops below 15 N at connector interface, material tensile strength exceeds 60 MPa**, Mechanism: **Polymer chain scission under cyclic mechanical stress exceeding 0.5% strain amplitude, glass transition temperature (Tg) crossover at 85°C for thermoplastic elastomers**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Cable bending radius violation below 6× cable diameter | 8 | Conductor fatigue fracture at 10⁶ stress cycles | Integral strain relief boot with 8 mm minimum bend radius limiter |
| Thermal cycling between -40°C and 105°C at 2 cycles/hour | 8 | Polymer embrittlement and crack propagation at 0.2 mm/year rate | Fluorosilicone compound with 200% elongation at -55°C |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Clamping Mechanism](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/clamping-mechanism.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Injection Molding Machine**, **Industrial Chiller**, **Hopper Dryer**  
**Downstream Applications**: ATE Test Fixtures, Aerospace Avionics Harnesses, Medical Diagnostic Equipment Cables  

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

### Q: What materials are available for this strain relief backshell?
**A**: This backshell is available in aluminum alloy for lightweight durability, stainless steel for maximum corrosion resistance, and thermoplastic for cost-effective electrical insulation.

### Q: How does this backshell protect ATE connector cables?
**A**: The clamping mechanism secures cables at the connection point, preventing pull-out and bending stress that can damage wires, while the sealing gasket provides environmental protection.

### Q: What components are included in the backshell assembly?
**A**: Each unit includes the backshell body, clamping mechanism for cable retention, grounding lug for electrical safety, and sealing gasket for environmental protection.

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

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Strain Relief/Backshell](https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/strain-reliefbackshell)**

### 🌐 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**: STRAIN_RELIEFBACKSHELL | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: d61e6871
