UPR.102U.309.HLAD52 U Series Connector: 9-Pin Push-Pull Plug for Interphone Systems | Low-Frequency Signal

Looking for a reliable U series connector for interphone communication systems that need secure low-frequency signal transmission with dual anti-misinsertion protection? The UPR.102U.309.HLAD52 is a 9-pin push-pull self-locking plug from the U Series — combining the multi-key positioning of B-series with the semi-circular positioning of F-series for enhanced reliability in electronic equipment.

This UPR.102U.309.HLAD52 9-position plug is specifically designed for interphone applications, offering IP68 watertight sealing, 360° EMC shielding, and excellent environmental resistance. As a robust U series connector, it delivers the durability and signal integrity required for reliable voice communication in demanding environments.

1. Product Specifications: UPR.102U.309.HLAD52 9-Pin Plug

The UPR.102U.309.HLAD52 is a cable-mounting straight plug from the 102U shell size within the U Series, featuring 9 low-voltage contacts optimized for low-frequency signal transmission.

1.1 Key Specifications

  • Model: UPR.102U.309.HLAD52
  • Series: U Series — push-pull self-locking connector combining B-series pin positioning and F-series semi-circular positioning
  • Shell Size: 102U
  • Contact Count: 9 positions
  • Signal Type: Low-frequency signal transmission
  • Locking: Push-pull self-latching system
  • IP Rating: IP68 / IP66 watertight, waterproof and sandproof
  • EMC: 360° screening for full electromagnetic compatibility
  • Keying: Three-key positioning + semi-circular positioning (dual anti-misinsertion)

1.2 U Series Design Advantages

  • Dual Positioning System: Combines B-series multi-key positioning pin structure with F-series semi-circular positioning for superior anti-misinsertion protection
  • Push-Pull Self-Latching: Quick insertion and secure locking with audible click confirmation
  • Waterproof Protection: IP68 / IP66 rated, suitable for both indoor and outdoor communication equipment
  • EMC Shielding: 360° screening protects against electromagnetic interference
  • Blind-Mating Capability: Guiding mechanism ensures precise alignment during connection
  • Shock & Vibration Resistant: Robust design ideal for field equipment and portable devices
  • Contact Range: 2 to 19 contacts depending on shell size
  • Contact Termination: Solder and PCB contacts (straight or elbow)
  • Space Savings: High packing density for compact equipment design

2. U Series Connector Family Overview

The U Series is a specialized push-pull self-locking connector family that integrates the keying advantages of both the B-series and F-series platforms. Designed primarily for low-frequency signal transmission in electronic equipment, the U Series offers enhanced anti-misinsertion protection through its unique dual-positioning structure.

2.1 U Series Key Features

  • B-Series + F-Series Hybrid Design: Combines the multi-key positioning of B-series with the semi-circular positioning of F-series for dual-pin anti-misinsertion
  • Low-Frequency Signal Optimization: Specifically engineered for reliable low-frequency signal transmission in communication and electronic equipment
  • Compact & Rugged: Solid shell construction with excellent environmental resistance and long service life
  • Multi-Contact Configurations: 2 to 19 contacts available across different shell sizes
  • Wide Application Range: Medical machinery, communication systems, computers, and small communication devices

2.2 Customization Services

  • Cable Assembly: Custom cable length, connector configuration, and overmolding for interphone and communication systems
  • Custom Inserts: Specific pin arrangements and contact configurations for low-frequency signal applications
  • Special Materials: Shell materials, plating options, and custom colors
  • Locking Configuration: Standard push-pull self-latching with dual-positioning key system

3. Applications for U Series Connectors in Communication Equipment

Push-pull connectors from the U Series provide reliable low-frequency signal transmission for interphone and communication systems, combining waterproof sealing with anti-electromagnetic interference protection. The global professional communications equipment market continues to grow alongside expanding public safety networks, industrial communication systems, and emergency response infrastructure.

3.1 Interphone & Voice Communication Systems

  • Interphone Systems: Wired intercom and two-way voice communication equipment for industrial and commercial use
  • Group Voice Radios: Professional two-way radio systems for security, logistics, and event management
  • Emergency Communication: Reliable voice communication connections for emergency response and public safety

3.2 Electronic Equipment & Signal Transmission

  • Low-Frequency Signal: Audio and control signal transmission in electronic devices and instrumentation
  • Medical Machinery: Signal connections for diagnostic and monitoring medical equipment
  • Communication Systems: Data and signal interfaces for wired communication infrastructure
  • Computer Peripherals: Signal connections for computing and small communication devices
  • Broadcast Equipment: Audio signal transmission for broadcast and recording systems

The global professional mobile radio (PMR) and intercom market is projected to grow as public safety agencies, industrial facilities, and transportation networks upgrade their communication infrastructure. The U Series’ dual-positioning design, IP68 protection, and 360° EMC shielding make it a reliable choice for mission-critical voice communication connections.

4. Common Questions (FAQ)

Q1: What is the U Series connector and how does it differ from B-Series and F-Series?

The U Series connector is a push-pull self-locking connector that uniquely combines the multi-key positioning structure of the B-series with the semi-circular positioning structure of the F-series. This dual-positioning system provides enhanced anti-misinsertion protection compared to either single system. While the B-Series uses pin-based keying and the F-Series uses semi-circular alignment, the U Series integrates both for maximum connection security in low-frequency signal applications.

Q2: Is the UPR.102U.309.HLAD52 suitable for outdoor interphone installations?

Yes. The UPR.102U.309.HLAD52 features IP68/IP66 watertight protection, making it suitable for both indoor and outdoor interphone installations. The 360° EMC shielding also protects against electromagnetic interference, ensuring clear voice communication even in electrically noisy environments.

Q3: How many contacts does the 102U shell size support?

The 102U shell size in the U Series supports multiple contact configurations. The UPR.102U.309.HLAD52 uses a 9-position configuration. The U Series overall supports 2 to 19 contacts depending on the shell size and insert configuration selected. For custom contact arrangements, contact our engineering team.

Q4: Can the U Series connector be used with existing B-Series or F-Series equipment?

While the U Series combines design features from both B-Series and F-Series, it uses a distinct dual-positioning keying system that is not directly interchangeable with standard B-Series or F-Series connectors. For specific compatibility requirements, please contact our engineering team at [email protected] with your application details.

Q5: What is the typical lead time for UPR.102U.309.HLAD52 orders?

Standard orders typically ship within 20 working days. Larger quantities (500+ pcs) may require up to 40 working days. Rush orders and express shipping options are available — contact our sales team for confirmation.

Conclusion & Call to Action

The UPR.102U.309.HLAD52 demonstrates the U Series’ unique value proposition — combining B-series multi-key positioning with F-series semi-circular positioning in a single push-pull self-locking connector for reliable low-frequency signal transmission in interphone systems. With its IP68 sealing, EMC shielding, and robust mechanical design, this U series connector delivers the performance and durability required for professional voice communication equipment.

Spring Technology also provides professional customization services for all push-pull connectors, including the U Series, with custom cable assemblies, contact configurations, and specialized materials for communication and electronic equipment applications.

For more information about our U Series connectors or to discuss your interphone system requirements, contact us at [email protected] or [email protected], or visit our website.

Action Call: Need a reliable U Series connector for your interphone or low-frequency signal application? Contact our team today for samples, pricing, and technical specifications tailored to your communication equipment requirements.

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Xi’an Spring Technology Co., Ltd. — Your reliable partner for push-pull connectors and signal transmission solutions. Contact us at [email protected] or [email protected].

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UPR.102U.309.HLAD52 Spring technology

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