Contact Pin Array: Voltage Rating 50-250V AC/DC

Component Specifications

Definition

A contact pin array is a precision-engineered component consisting of multiple spring-loaded conductive pins arranged in a grid pattern, designed to establish and maintain electrical connections between printed circuit boards (PCBs) in computer server backplane connector assemblies. It ensures signal integrity, power distribution, and mechanical stability in high-performance computing environments.

Working Principle

The contact pin array operates on the principle of spring-loaded compression, where each pin maintains consistent electrical contact through mechanical force. When mated with a corresponding receptacle, the pins compress slightly, creating a reliable connection that accommodates thermal expansion, vibration, and manufacturing tolerances while minimizing insertion force.

Materials

Phosphor bronze or beryllium copper pins with gold or tin plating; insulator housing made of high-temperature thermoplastics like PBT, LCP, or PPS; nickel underplating for corrosion resistance.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Pitch	0.8mm to 2.54mm
Pin Count	50-500 pins
Current Rating	1-3A per pin
Voltage Rating	50-250V AC/DC
Insertion Force	0.5-2.0N per pin
Insertion Cycles	≥500 cycles
Contact Resistance	<20mΩ
Insulation Resistance	>1000MΩ
Operating Temperature	-55°C to +125°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

IEC 60512, EIA-364, MIL-STD-202

Parent Products

This component is used in the following industrial products

Computer Server Backplane Connector Assembly

High-density interconnect assembly for server motherboard-to-peripheral communication

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Engineering Analysis

Risks & Mitigation

Pin misalignment during assembly
Contact corrosion in humid environments
Fatigue failure of spring mechanisms
Signal crosstalk at high frequencies

FMEA Triads

Trigger: Insufficient plating thickness
Failure: Increased contact resistance leading to overheating
Mitigation: Implement strict quality control for plating processes and use accelerated life testing.

Trigger: Housing material degradation at high temperatures
Failure: Loss of pin alignment and insulation breakdown
Mitigation: Select high-temperature thermoplastics and validate material performance through thermal cycling tests.

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.05mm pin position tolerance, ±0.1mm coplanarity

Test Method

Electrical continuity testing, insertion/extraction force measurement, environmental stress screening (ESS), and high-frequency signal integrity analysis

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

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Manufacturers of Contact Pin Array

Manufacturer profiles associated with Contact Pin Array.

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Frequently Asked Questions

What is the primary function of a contact pin array in a server backplane?

It provides multiple electrical pathways for power and signal transmission between PCBs, ensuring reliable connectivity in high-speed data processing environments.

How does spring-loading improve contact pin array performance?

Spring-loading maintains consistent contact pressure, compensating for thermal expansion, vibration, and mating tolerances, which reduces signal loss and prevents intermittent connections.

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.

Contact Pin Array