INDUSTRY COMPONENT

Fixture Body/Housing

Fixture body/housing is the structural component of electrical test fixtures that provides mechanical support, alignment, and protection for probe assemblies and test electronics.

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Component Specifications

Definition
The fixture body/housing serves as the primary structural element in electrical test fixtures, engineered to maintain precise dimensional stability, provide secure mounting for probe arrays, ensure proper electrical isolation, and protect sensitive test components from environmental factors and mechanical stress during automated testing operations.
Working Principle
The fixture body/housing operates by providing a rigid, dimensionally stable platform that maintains precise alignment between test probes and device under test (DUT) contact points, while ensuring proper electrical isolation and mechanical protection throughout repeated test cycles.
Materials
Aluminum 6061-T6 (most common), Stainless Steel 304/316, Engineering Plastics (PEEK, Ultem, Delrin), Composite Materials (carbon fiber reinforced polymers)
Technical Parameters
  • Weight Varies by size (typically 0.5-10kg)
  • Flatness 0.02mm/m
  • Surface Finish Ra 0.8μm or better
  • Dimensional Tolerance ±0.05mm
  • Operating Temperature -20°C to +85°C
  • Electrical Resistivity >10¹⁴ Ω·cm
  • Thermal Expansion Coefficient ≤23×10⁻⁶/°C
Standards
ISO 9001, ISO/IEC 17025, DIN 32561, IPC-9592

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Fixture Body/Housing.

test fixture housing probe fixture body electrical test fixture components fixture chassis test jig structure PCB test fixture semiconductor test fixture Fixture Body/Housing Fixture Body/Housing in Computer, Electronic and Optical Product Manufacturing

Parent Products

This component is used in the following industrial products

Electrical Test Fixture/Probes

A precision interface component used to establish electrical contact with microfluidic chips or cell sorting cartridges for signal transmission and testing.

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Engineering Analysis

Risks & Mitigation
  • Dimensional drift over time
  • Thermal expansion mismatch
  • Material fatigue
  • Contamination buildup
  • Electrical leakage paths
  • Mechanical stress concentration
FMEA Triads
Trigger: Thermal cycling during operation
Failure: Dimensional instability leading to misalignment
Mitigation: Use materials with matched thermal expansion coefficients and implement temperature compensation in test algorithms
Trigger: Repeated mechanical loading
Failure: Fatigue cracking or deformation
Mitigation: Design with adequate safety factors, use fatigue-resistant materials, implement regular inspection protocols
Trigger: Environmental contamination
Failure: Electrical leakage or contact resistance issues
Mitigation: Implement protective coatings, regular cleaning procedures, and controlled environment operation

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Positional tolerance ±0.05mm, Flatness 0.02mm/m, Parallelism 0.03mm
Test Method
Coordinate Measuring Machine (CMM) verification, laser interferometry for flatness, thermal cycling tests, electrical isolation testing per IEC 61010

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

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 are the key considerations when selecting fixture body material?

Key considerations include dimensional stability under thermal cycling, electrical insulation properties, weight requirements, corrosion resistance, machinability, and cost-effectiveness for the specific application environment.

How does fixture body design affect test accuracy?

Fixture body design directly impacts test accuracy through dimensional stability, thermal management, vibration damping, and maintaining precise probe alignment over thousands of test cycles.

What maintenance is required for fixture bodies?

Regular inspection for wear, cleaning to prevent contamination, verification of dimensional accuracy, checking for cracks or deformation, and ensuring mounting surfaces remain flat and true.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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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Fixture Body / Base Fixture Plate