Editorial Technical Reference

Connector Assembly

This page explains how Connector Assembly is classified within Computer, Electronic and Optical Product Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A modular assembly of electrical connectors and supporting hardware designed for secure signal and power transmission within an interface module.

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Product Specifications

Technical details and manufacturing context for Connector Assembly

Definition
The Connector Assembly is a critical sub-component of the Interface Module that provides standardized electrical connection points for signal transmission, power delivery, and data communication between the module and external systems or other modules. It ensures reliable, secure, and often quick-connect/disconnect functionality while maintaining proper alignment, shielding, and strain relief. The assembly typically consists of male and female connector halves with precisely aligned conductive pins/sockets housed in insulating bodies. When mated, these pins establish electrical continuity. Features may include locking mechanisms (latches, screws, bayonets) for secure mating, shielding for EMI/RFI protection, and sealing for environmental resistance. It functions by physically and electrically bridging circuits between the interface module's internal electronics and external cables or devices. The assembly is designed for a range of configurations, with the number of contacts varying from 2 to 24 pins, rated current per contact from 1 to 10 A (per IEC 60512-3-1), rated voltage from 50 to 500 V AC/DC (per IEC 60512-4-1), contact resistance ≤20 mΩ (per IEC 60512-2-1), insulation resistance ≥1000 MΩ (per IEC 60512-3-1), dielectric withstanding voltage from 500 to 3000 V AC (per IEC 60512-4-1), operating temperature from -40 to 105 °C (per IEC 60512-5-1), IP rating from IP54 to IP67 (per IEC 60529), mating cycles from 500 to 5000 (per IEC 60512-9-1), and weight from 5 to 50 g. Materials on file include copper alloy for contacts (gold-plated per ASTM B122), high-temperature plastic for housing (PA66, UL94V-0 per UL 94), and stainless steel for shell/latches. These values are reference ranges; verify model-specific specifications with the legal manufacturer or supplier.
Working Principle
The assembly operates by aligning male and female connector halves, where conductive pins and sockets make physical contact to establish electrical continuity. Locking mechanisms such as latches or screws ensure secure mating, while shielding and sealing protect against electromagnetic interference and environmental factors. The design provides strain relief to prevent cable damage and maintains proper alignment for reliable signal and power transmission.
Common Materials
Copper alloy (contacts), High-temperature plastic (housing), Stainless steel (shell/latches)
Technical Parameters
ParameterTypical rangeNotes & selection driver
Number of Contacts2–24 pinsDetermines signal/power capacity
Rated Current per Contact1–10 AExceeding causes overheatingIEC 60512-3-1
Rated Voltage50–500 V AC/DCAbove this risk of arcingIEC 60512-4-1
Contact Resistance≤20 mΩHigher causes signal lossIEC 60512-2-1
Insulation Resistance≥1000 MΩLower indicates insulation failureIEC 60512-3-1
Dielectric Withstanding Voltage500–3000 V ACEnsures insulation integrityIEC 60512-4-1
Operating Temperature-40–105 °COutside range degrades materialsIEC 60512-5-1
IP RatingIP54–IP67Higher for harsh environmentsIEC 60529
Mating Cycles500–5000 cyclesEndurance limitIEC 60512-9-1
Contact MaterialCu alloy, Au platedGold plating for corrosion resistanceASTM B122
Housing MaterialPA66, UL94V-0Flame retardantUL 94
Weight5–50 gAffects handling and installation

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
  • Connector Housing Part
    Insulating body that holds and aligns contacts, provides mechanical structure, and often includes keying/ polarization features.
    Material: High-temperature plastic (e.g., PBT, nylon)
  • Contacts (Pins/Sockets) Part
    Conductive elements (usually male pins and female sockets) that establish electrical connection when mated.
    Material: Copper alloy (e.g., phosphor bronze, beryllium copper) with plating (e.g., gold, tin)
  • Locking Mechanism
    Secures the mated connector pair to prevent accidental disconnection (e.g., latch, screw lock, bayonet).
    Material: Stainless steel or plastic
  • Strain Relief Part
    Component or feature that relieves mechanical stress on cable terminations to prevent wire damage.
    Material: Rubber or plastic
  • Shielding
    Metal shell or braid termination that keeps electromagnetic interference off the contacts.
  • Environmental Seal
    Seals the mated pair against dust and moisture.

Applied To / Applications

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

Interface Module
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Communication Interface Modules
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Servo Drive/Actuator Interface
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Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 100 psi
other spec: IP67 ingress protection rating
temperature: -40°C to +125°C
Media Compatibility
✓ Industrial control panels ✓ Automated machinery enclosures ✓ Power distribution cabinets
Unsuitable: Submerged saltwater environments
Sizing Data Required
  • Number of signal/power circuits required
  • Maximum current per circuit (Amps)
  • Available panel space/dimensions

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Contact fretting corrosion
Cause: Micro-motion between mated connector contacts due to vibration or thermal cycling, leading to oxidation and increased electrical resistance
Insulation degradation
Cause: Environmental exposure to moisture, chemicals, or UV radiation causing polymer breakdown and potential short circuits
Maintenance Indicators
  • Intermittent electrical continuity or signal dropout during operation
  • Visible discoloration, cracking, or deformation of connector housing or contacts
Engineering Tips
  • Implement proper strain relief and vibration damping at cable entry points to minimize mechanical stress on contacts
  • Apply appropriate environmental sealing and use connectors with corrosion-resistant plating (e.g., gold over nickel) for harsh conditions

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
IEC 60512 (Connectors for electronic equipment) DIN EN 60352 (Solderless connections)

Quoted from the published standard.

Manufacturing Precision
  • Mating surface flatness: 0.05mm
  • Pin alignment tolerance: +/-0.1mm
Quality Inspection
  • Electrical continuity and insulation resistance test
  • Mechanical mating force and durability test

Manufacturers of Connector Assembly

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Romtronic International Co., Limited
Dongguan, Guangdong, CN
Founded 199710,000㎡
ISO 9001:2015 ISO 13485:2016 IATF 16949
Also makes: Plastic Injection Molded Part, Packaging Machinery, CNC Machine Tools and 9 more
Managed by the manufacturer
Listed on the company's own website
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Frequently Asked Questions

What is the typical number of contacts in this connector assembly?

The number of contacts ranges from 2 to 24 pins, depending on the specific model. This range determines the signal and power capacity of the assembly.

What are the rated current and voltage per contact?

The rated current per contact is 1 to 10 A, and the rated voltage is 50 to 500 V AC/DC, per IEC 60512-3-1 and IEC 60512-4-1 respectively. Exceeding these limits can cause overheating or arcing.

What materials are used in the connector assembly?

Contacts are made of copper alloy with gold plating (per ASTM B122), housing is high-temperature plastic PA66 with UL94V-0 flame retardancy (per UL 94), and shell/latches are stainless steel.

What environmental protection does the assembly offer?

The assembly offers an IP rating from IP54 to IP67 (per IEC 60529), providing protection against dust and water ingress. The operating temperature range is -40 to 105 °C (per IEC 60512-5-1).
Data basis: editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Data Basis

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

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