Fixture Body/Housing: Flatness 0.02mm/m

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

Parameter	Typical range	Notes & selection driver
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

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 9001, ISO/IEC 17025, DIN 32561, IPC-9592

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.

View Product Details

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

Typical Suppliers & Equivalents

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

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Fixture Body/Housing

Manufacturer profiles associated with Fixture Body/Housing.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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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.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

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.

Fixture Body/Housing