ATE Connector for Automated Test Equipment

Product Specifications

Technical details and manufacturing context for ATE Connector

Definition

The ATE Connector is a critical component of an Interface PCB in automated testing systems. It provides the physical and electrical interface between the Automated Test Equipment (ATE) and the device under test (DUT). This connector ensures reliable, high-precision signal transmission for power, control signals, and data during functional, parametric, and production testing of electronic assemblies, semiconductors, or PCBs. It is engineered for durability through thousands of mating cycles and maintains signal integrity under test conditions.

Typical specifications include a contact count ranging from 4 to 96 positions, with contact pitches from 0.5 to 2.54 mm. Each contact is rated for currents between 1 and 5 A, and the connector can handle voltages from 50 to 500 V AC/DC. Contact resistance is kept at or below 20 mΩ, while insulation resistance is at least 1000 MΩ at 500 V DC. The dielectric withstanding voltage ranges from 500 to 1500 V AC, ensuring safety isolation between circuits. Operating temperatures span from -40°C to 85°C, and the connector is designed for 500 to 10,000 mating cycles. Insertion force per contact is between 0.5 and 2.0 N, suitable for high pin count applications.

Materials used include phosphor bronze or beryllium copper for contacts, with gold or nickel plating (gold plating thickness 0.76–1.27 μm) for corrosion resistance. Housings are made of high-temperature thermoplastics such as LCP or PPS, meeting UL 94 V-0 flammability ratings. The connector may offer IP54 to IP65 protection against dust and water ingress, per IEC 60529.

When selecting an ATE Connector, verify model-specific values for contact pitch, current rating, voltage, and environmental ratings with the manufacturer, as these parameters depend on the exact configuration and application. Always confirm compliance with relevant standards for your specific test setup.

Working Principle

The ATE Connector operates by establishing a secure, low-resistance electrical path between the ATE system's pin electronics (or switching matrix) and the test points or pads on the Interface PCB. When mated, its contacts (pins or sockets) align precisely with corresponding pads on the PCB, completing circuits for power delivery, stimulus signals from the ATE, and measurement of response signals from the DUT. Its design minimizes contact resistance, crosstalk, and signal loss to ensure accurate test measurements.

Common Materials

Phosphor Bronze (contacts), High-Temperature Thermoplastic (housing), Gold or Nickel Plating

Technical Parameters

Parameter	Typical range	Notes & selection driver
Number of Contacts	4–96 positions	Higher counts for high-density test interfaces
Contact Pitch	0.5–2.54 mm	Smaller pitch for miniaturized DUTs
Rated Current per Contact	1–5 A	Higher current requires larger contact size
Rated Voltage	50–500 V AC/DC	Limited by creepage and clearance distances
Contact Resistance	≤20 mΩ	Lower resistance ensures signal integrity
Insulation Resistance	≥1000 MΩ	At 500 V DC, critical for high-impedance measurements
Dielectric Withstanding Voltage	500–1500 V AC	Ensures safety isolation between circuits
Operating Temperature Range	-40–85 °C	Extended range for harsh environments
Mating Cycles	500–10000 cycles	Higher cycles for production test sockets
Insertion Force per Contact	0.5–2.0 N	Low force for high pin count connectors
Contact Material	BeCu, Phosphor bronze	Beryllium copper for high cycle life
Plating	Au 0.76–1.27 μm	Gold plating for corrosion resistance
Housing Material	LCP, PPS	High temperature thermoplasticsUL 94 V-0
IP Rating	IP54–IP65	Dust and water protection for industrial useIEC 60529

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

Contact Pin/Socket Part
Forms the electrical connection; typically spring-loaded for reliable contact pressure.

Material: Phosphor bronze with gold plating
Insulator Housing Part
Holds contacts in precise alignment, provides electrical insulation between contacts, and guides mating.

Material: High-temperature thermoplastic (e.g., PPS, LCP)
Strain Relief/Backshell
Secures attached cables, prevents wire pull-out, and protects contacts from mechanical stress.

Material: Thermoplastic or metal

Applied To / Applications

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

Interface PCB

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Manufacturers of ATE Connector

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Frequently Asked Questions

What is the typical contact pitch range for ATE connectors?

According to the directory reference, the contact pitch ranges from 0.5 to 2.54 mm. Smaller pitches are used for miniaturized DUTs, while larger pitches may be used for higher current or easier handling. Always verify the exact pitch for your specific model.

What is the maximum rated current per contact?

The rated current per contact is typically between 1 and 5 A. Higher current ratings require larger contact sizes. Confirm the current requirement of your test signals and select a connector that meets or exceeds that value.

How many mating cycles can an ATE connector withstand?

The mating cycle rating ranges from 500 to 10,000 cycles, depending on the design and materials. For production test sockets, higher cycle counts are recommended. Verify the cycle life for your intended application to ensure reliability.

What standards apply to ATE connectors?

The housing material may be rated UL 94 V-0 for flammability, and the IP rating (IP54 to IP65) follows IEC 60529. However, these are reference standards; you must confirm compliance with the manufacturer for the specific model and your application requirements.

Data Basis

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

Preliminary Technical Classification

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pressure:	Atmospheric pressure only (not designed for pressurized systems)
other spec:	Max current rating: 5A per pin, Max voltage: 500V, Contact resistance: <20mΩ, Insertion cycles: 10,000+
temperature:	-40°C to +125°C

ATE Connector

Product Specifications

Applied To / Applications

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