You are here: Home / Products / Automotive Connectors / Molex Connectors / 2.54mm Pitch, MX123 Female Receptacle Housing Automotive Connectors, Keying Option B, Wire Dress Option 9, 73 Circuits, Gray TPA

2.54mm Pitch, MX123 Female Receptacle Housing Automotive Connectors, Keying Option B, Wire Dress Option 9, 73 Circuits, Gray TPA

MX123 Female Receptacle Housing: The Ultimate Sealed Connection Solution for Harsh Automotive Environments

The MX123 Sealed Connection System delivers unmatched durability and reliability for engine and transmission control modules, featuring industry-leading matte-seal technology and compact packaging. Certified to GMW3191 specs, it excels in high-vibration, extreme-temperature environments while streamlining assembly with integrated TPA/CPA components.

  • GMW3191-certified for harsh automotive conditions (125°C to -40°C)
  • Matte-seal technology ensures superior resilience and sealing
  • Compact 2.54mm pitch design with 73-circuit capacity (4-row)
  • Integrated TPA/CPA and multiple polarization/wire-dress options for assembly efficiency
  • Availability:
    Quantity:
    • 345661403

    • Molex

    Product Description

    Automotive powertrain original equipment manufacturers require connection systems engineered specifically for engine and transmission control module applications. These critical modules operate in harsh, high-vibration environments under the hood or chassis of vehicles, making connector retention and physical durability essential requirements for long-term operation. To integrate properly into tight module spaces, compact packaging size remains a critical attribute for these demanding applications. The MX123 Sealed Connection System holds certification to GMW3191 specifications, ensuring the product undergoes rigorous testing and performs exceptionally well in extremely hot, high-vibration conditions. This system implements advanced matte-seal technology to establish a highly resilient sealed connection while maintaining one of the smallest packaging footprints available in the industry. Multiple polarization options, wire-dress configurations, PCB-tail variations, and integrated components assist in keeping the interface securely mated, ultimately freeing up valuable time during the assembly process.

    Mechanical Stability and Assembly Reliability

    To address the stringent demands of automotive manufacturing, this 73-circuit receptacle housing integrates advanced structural safeguards. The precision-molded gray nylon exterior resists automotive fluids and mechanical abrasion, while providing tactile feedback during engagement to confirm a secure lock.

    • Terminal Position Assurance (TPA): Ensures all crimped terminals are fully seated and locked, preventing back-out during severe, multi-axis vibration events typical in engine compartments.
    • Keying Option B: Acts as a precise physical safeguard against mis-mating during rapid assembly line operations, significantly reducing assembly error rates.
    • Anti-Disconnection Mechanism: Works in tandem with the TPA to enhance the overall stability and retention of the electrical connection under continuous mechanical stress.

    Engineering Design and Development Resources

    Prototyping and early-stage validation require precise digital assets to prevent costly tooling errors. To support structural engineers and system designers, comprehensive digital resources are readily available for this 2.54mm pitch connector, allowing engineers to simulate wire routing clearances and thermal dissipation pathways before physical tooling is commissioned.

    • Extensive 3D CAD Models: Covering dozens of industry-standard formats, including STEP and SOLIDWORKS, for direct integration into your existing design environment.
    • Dimensional Drawings: Ensuring precise spatial planning for wire dress option 9 configurations, eliminating guesswork during the initial mechanical layout.
    • Structural Verification: Facilitating accurate clash detection and fitment analysis within tight under-hood packaging constraints.

    Environmental Compliance and Global Standards

    Meeting international environmental regulations is a baseline requirement for global automotive supply chains. This specialized gray nylon housing strictly complies with EU RoHS directives, REACH SVHC regulations, and low-halogen standards. The distinct gray coloration is achieved using compliant pigments that do not compromise the dielectric properties or structural integrity of the nylon substrate. To support your compliance documentation, comprehensive IPC 1752A and chemSHERPA declarations are available upon request. These detailed material declarations provide the transparency required to meet the strict environmental entry thresholds established by global automotive OEMs, ensuring your final vehicle assemblies remain compliant and ready for distribution across all target international markets.

    Quality Testing and Technical Validation

    Reliability in under-hood applications requires verifiable empirical data rather than theoretical estimates. We provide exhaustive technical documentation, including detailed Product Specifications (PS), comprehensive Application Specifications (AS), and authoritative Test Summaries (TS). These documents present real-world testing data that validates the connector's performance commitments in extreme environments, specifically addressing its capability to withstand severe temperature fluctuations ranging from -40 C to + 125 C. Each production batch adheres strictly to the documented tolerances, ensuring that the 2.54mm pitch remains perfectly uniform across all 73 circuits. This empirical evidence supports the GMW3191 certification, giving engineering teams absolute confidence in the component's longevity under severe thermal cycles and continuous mechanical stress.

    Supply Chain and Lifecycle Management

    For large-scale manufacturing facilities, predictable logistics and component availability are just as critical as the technical specifications. This MX123 series connector is managed with a strict focus on supply chain security and operational continuity.

    • Optimized Tray Packaging: Designed to facilitate automated pick-and-place machinery or streamlined manual handling, while protecting delicate internal latching mechanisms from physical deformation during transit.
    • Clear MOQ Guidelines: Providing transparent Minimum Order Quantity thresholds to assist procurement teams in planning high-volume production schedules.
    • Proactive PCN System: A structured Product Change and Obsolescence Notification framework that guarantees continuity and protects your operations from unexpected disruptions.

    Adaptability and Alternative Component Selection

    Streamlining the bill of materials requires clear visibility into compatible components and viable alternatives. This connector ecosystem is fully mapped out, clearly listing the corresponding male headers, compatible crimp terminals, and specialized crimping tools required for optimal termination. By standardizing on a well-documented ecosystem, assembly technicians can utilize calibrated tooling to achieve consistent crimp heights and pull-force metrics. In situations where supply adjustments are necessary, officially recommended alternative part numbers, such as 2167390008, are clearly documented. This transparent component mapping significantly reduces the complexity of part selection and mitigates the risks associated with component substitution during critical production runs, ensuring assembly lines continue operating without delay.

    Technical Specifications

    ManufacturerMolex
    Product CategoryAutomotive Connectors
    RoHS
    ProductHousings
    Accessory Type-
    Number of Positions73 Position
    Pitch2.54 mm
    GenderReceptacle (Female)
    Mounting StyleCable Mount / Free Hanging
    Termination StyleCrimp
    ColorGray
    Series34566
    TradenameMX123
    ApplicationAutomotive, Power
    BrandMolex
    Contact GenderWithout Socket Contacts
    Contact TypeReceptacle
    Current Rating11 A, 25 A
    Description/FunctionMX123 Female Receptacle Housing, Keying Option B, Wire Dress Option 9
    Housing MaterialNylon
    Maximum Operating Temperature+ 125 C
    Minimum Operating Temperature- 40 C
    Mounting AngleStraight
    Number of Rows4 Row
    Product TypeAutomotive Connectors
    Factory Pack Quantity144
    SubcategoryAutomotive Connectors
    Part # Aliases345661403 0345661403
    Unit Weight1.778619 oz
    Inquiry

    Related News

    content is empty!

    Changsha Sibel was established in 2017, mainly engaged in connectors, power cords, power plugs, wiring harness and related technical services, etc.

    Quick Links

    Product Category

    Leave a Message
    Contact us
    Contact us
    Copyright © 2024 Changsha Sibel Electronic Technology Co., Ltd. All rights reserved.  Sitemap  Support by leadong.com  Privacy Policy