Structured Manufacturing Data (2026)

Strain Relief/Backshell

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Strain Relief/Backshell used in the Computer, Electronic and Optical Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Strain Relief/Backshell is characterized by the integration of Clamping Mechanism and Backshell Body. In industrial production environments, manufacturers listed on CNFX commonly emphasize Aluminum alloy construction to support stable, high-cycle operation across diverse manufacturing scenarios.

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

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Product Specifications

Technical details and manufacturing context for Strain Relief/Backshell

Definition
The strain relief/backshell is a critical component of ATE (Automatic Test Equipment) connectors that provides mechanical protection and cable management. It serves as a housing that encloses the rear portion of the connector, securing the cable bundle and preventing excessive bending, pulling, or twisting forces from being transmitted to the electrical contacts. This ensures reliable signal integrity and prevents connection failures in high-vibration or harsh industrial environments.
Working Principle
The strain relief/backshell mechanically clamps or secures the cable jacket using compression fittings, clamps, or adhesive systems. It distributes any external mechanical forces (tension, bending, vibration) across the cable structure rather than allowing them to concentrate at the fragile solder joints or crimp connections inside the connector. The backshell portion provides environmental sealing and electromagnetic shielding in many applications.
Common Materials
Aluminum alloy, Stainless steel, Thermoplastic
Technical Parameters
  • Cable diameter range compatibility (mm) Customizable
Components / BOM
  • Clamping Mechanism
    Secures the cable jacket through compression to prevent pull-out
    Material: Stainless steel
  • Backshell Body Part
    Provides structural housing and environmental protection
    Material: Aluminum alloy
  • Sealing Gasket Part
    Creates environmental seal between backshell and connector
    Material: Silicone rubber
  • Grounding Lug Part
    Provides electrical grounding connection for shielding
    Material: Brass

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Strain Relief/Backshell.

ATE connector strain relief backshell aluminum alloy cable backshell strain relief for electronic test equipment industrial backshell with grounding lug thermoplastic cable strain relief

Applied To / Applications

This component is essential for the following industrial systems and equipment:

ATE Connector
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Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Not applicable (mechanical component, not pressure-rated)
other spec: Cable diameter range: 3mm to 25mm, Vibration resistance: Up to 10g RMS, IP rating: IP67/IP68 (environmental sealing)
temperature: -55°C to +125°C (operational range, typical for industrial-grade polymers)
Media Compatibility
✓ Industrial control cables (PVC/jacketed) ✓ Aviation/military connectors (MIL-DTL-38999 series) ✓ Marine/offshore electrical systems (saltwater environment)
Unsuitable: High-temperature (>150°C) or corrosive chemical immersion environments
Sizing Data Required
  • Cable outer diameter (OD) including jacket
  • Connector shell size/thread specification
  • Required bend radius protection (minimum radius)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Cable Pull-Out
Cause: Inadequate clamping force or improper installation allowing cable movement under vibration/tension
Connector Pin Damage
Cause: Excessive bending stress at cable entry point due to lack of proper strain relief, leading to internal wire breakage
Maintenance Indicators
  • Visible cable movement or rotation at backshell interface
  • Audible clicking/creaking from connector during equipment operation or movement
Engineering Tips
  • Use torque-controlled installation tools to ensure proper clamping force without over-tightening
  • Implement regular inspection protocols for cable bend radius compliance and backshell alignment

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 Quality Management Systems IEC 60529 Degrees of Protection Provided by Enclosures (IP Code) MIL-DTL-38999 Series I Connectors, Electrical, Circular, Miniature, High Density, Quick Disconnect, Environmental Resistant, Removable Crimp and Hermetic Solder Contacts
Manufacturing Precision
  • Thread Engagement: +/-0.1mm
  • Cable Clamp Bore Diameter: +/-0.05mm
Quality Inspection
  • Pull Test (Cable Retention Force)
  • Salt Spray Test (Corrosion Resistance per ASTM B117)

Factories Producing Strain Relief/Backshell

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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 materials are available for this strain relief backshell?

This backshell is available in aluminum alloy for lightweight durability, stainless steel for maximum corrosion resistance, and thermoplastic for cost-effective electrical insulation.

How does this backshell protect ATE connector cables?

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.

What components are included in the backshell assembly?

Each unit includes the backshell body, clamping mechanism for cable retention, grounding lug for electrical safety, and sealing gasket for environmental protection.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Computer, Electronic and Optical Product Manufacturing.

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.

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