Electrical Test Probe Array

Product Specifications

Technical details and manufacturing context for Electrical Test Probe Array

Definition

The Electrical Test Probe Array is a component used in automated testing systems for electronic circuits and components. It is part of an Integrated Testing Module, providing simultaneous electrical contact with multiple test points on printed circuit boards (PCBs), semiconductor devices, or electronic assemblies. The array enables automated functional testing, continuity checks, and signal measurement by establishing reliable electrical connections between the testing equipment and the device under test (DUT).

The array consists of multiple spring-loaded or pogo-pin probes arranged in a pattern that matches the test points on the target device. When pressed against the test surface, each probe makes individual electrical contact, allowing the testing system to send signals, measure responses, and verify electrical characteristics across multiple points simultaneously.

Key specifications include a number of probes ranging from 16 to 512, with a probe pitch of 0.5 to 2.54 mm to match PCB pad spacing. Contact resistance is ≤50 mΩ for signal integrity, and current rating per probe is 1 to 5 A. Insulation resistance is ≥1000 MΩ at 100 V DC, and dielectric withstanding voltage is 500 to 1000 V AC for 1 minute without breakdown. Operating temperature ranges from -40 to 85 °C. Probe travel is 3 to 10 mm, with spring force of 0.5 to 2.0 N at 2/3 travel. Probe materials include beryllium copper and steel; insulator materials include PEEK and FR4. Array dimensions range from 50×50 to 300×300 mm, and weight is 0.5 to 5 kg.

Materials on file include beryllium copper alloy, phosphor bronze, gold-plated contacts, and stainless steel springs. These values are directory reference ranges and must be confirmed for the specific model and application with the legal manufacturer or supplier. The array is designed for use in automated test equipment, and proper selection depends on the DUT's test point layout, signal requirements, and environmental conditions.

Working Principle

The probe array consists of multiple spring-loaded or pogo-pin probes arranged in a specific pattern matching the test points on the target device. When the array is pressed against the test surface, each probe makes individual electrical contact, allowing the testing system to send signals, measure responses, and verify electrical characteristics across multiple points simultaneously.

Common Materials

Beryllium copper alloy, Phosphor bronze, Gold-plated contacts, Stainless steel springs

Technical Parameters

Parameter	Typical range	Notes & selection driver
Number of Probes	16–512 pcs	Determines test coverage and parallelism
Probe Pitch	0.5–2.54 mm	Must match PCB pad spacing
Contact Resistance	≤50 mΩ	Lower is better for signal integrity
Current Rating per Probe	1–5 A	Exceeding may cause overheating
Insulation Resistance	≥1000 MΩ	At 100 V DC
Dielectric Withstanding Voltage	500–1000 V AC	For 1 minute without breakdown
Operating Temperature	-40–85 °C	Outside range may affect spring force
Probe Travel	3–10 mm	Full travel; overtravel may damage probes
Spring Force	0.5–2.0 N	At 2/3 travel; too low causes poor contact
Probe Material	BeCu, Steel	Beryllium copper for conductivity; steel for durability
Insulator Material	PEEK, FR4	High temperature resistance and mechanical strength
Array Dimensions	50×50–300×300 mm	Custom sizes available
Weight	0.5–5 kg	Affects handling and fixture design

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

Components / BOM

Probe Tip Part
Makes direct electrical contact with test points, typically designed with specific geometries for different applications

Material: Beryllium copper with gold plating
Spring Mechanism Part
Provides consistent contact force and compensates for surface variations and alignment tolerances

Material: Stainless steel
Probe Body/Housing Part
Holds the probe assembly in precise alignment and provides electrical insulation between probes

Material: Ceramic or high-temperature plastic
Mounting Plate/Guide Plate Part
Maintains precise spatial arrangement of all probes in the array and provides mechanical support

Material: Aluminum or stainless steel

Applied To / Applications

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

Integrated Testing Module

View system integration details

Manufacturers of Electrical Test Probe Array

Manufacturer profiles associated with Electrical Test Probe Array.

Sourcing Electrical Test Probe Array from China?

Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.

Request manufacturers We manufacture this

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

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 · Page last updated 6 September 2026

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.

Frequently Asked Questions

What is the typical number of probes in an array?

The number of probes can range from 16 to 512, depending on the test requirements and the number of test points on the device under test.

What is the contact resistance specification?

The contact resistance is specified as ≤50 mΩ, which is important for maintaining signal integrity during testing.

What materials are used for the probes?

Probes are typically made of beryllium copper or steel, with gold-plated contacts. Springs are made of stainless steel, and insulators can be PEEK or FR4.

What is the operating temperature range?

The operating temperature range is -40 to 85 °C. Exceeding this range may affect spring force and contact reliability.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

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.

Buyer enquiry

Request manufacturing insight for Electrical Test Probe Array

Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.

Where it goes: Straight to the CNFX editorial desk, and to the manufacturer if this product is linked to a claimed profile. Nothing is broadcast to a supplier list.
Your details stay here: We do not sell or rent enquiry data, and we do not add you to a mailing list. Used only to answer this request.
No commission, no middleman: CNFX is a directory. We take no cut of any order and never negotiate on a supplier's behalf.
What we don't claim: A listing is not an endorsement. Qualify every supplier and verify every figure yourself before ordering.

pressure:	0 to 50 psi contact force per probe
other spec:	Current rating: 0.5-5A per probe, Voltage rating: up to 1000V, Contact resistance: <50mΩ
temperature:	-40°C to +125°C

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards