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Why Medical Devices Choose Plastic Push-Pull Self-Locking Connectors | MOCO Connectors
Medical Connectors    Plastic Push-Pull

Why Medical Devices Choose Plastic Push-Pull Self-Locking Connectors

In critical care environments, the connector you choose directly affects safety, uptime and user experience. MOCO’s plastic push-pull self-locking series is engineered for modern medical electronics—combining robust electrical performance, reliable sterilization tolerance and fast one-handed operation.

1) Safety & Compliance

  • High insulation with safe creepage/clearance design. Layouts are engineered to meet medical-grade spacing requirements to reduce the risk of electric shock for patients and clinicians.

  • Ingress protection matched to use case. When properly mated, assemblies can achieve up to IP66/67 for wash-down and splash-prone environments. Unmated protection may be lower (e.g., IP50); protective caps are available.

  • Standards-oriented quality system. Production aligns to ISO 13485:2016 (medical devices), ISO 9001:2015 and IATF 16949 for automotive-level quality controls.

  • Material and environmental compliance. RoHS-conforming options available; UL recognition and CE Declaration of Conformity documentation can be provided per model where applicable.

Note: CE is a manufacturer’s declaration rather than a third-party “certificate.” Always refer to the model’s Declaration of Conformity and test reports for the exact scope.

2) Reliability & Electrical Performance

Long service life

Precision latching hardware and quality contact plating support ≥1,000 mating cycles in typical medical use, reducing downtime and maintenance costs.

Stable signal integrity

Contacts use copper-alloy pins with gold plating to minimize contact resistance and micro-fretting, helping preserve clean ECG/EEG/EMG signals and high-resolution imaging data.

  • Realistic current ratings. Typical signal contacts support 2–7 A per contact depending on size and layout. Dedicated power layouts in larger shells can support higher currents; confirm with the specific datasheet and temperature-rise curves.

  • Thermal performance. Operating temperatures up to ≈125 °C (model-dependent) support long duty cycles in devices with internal heat sources.

  • Vibration-resistant push-pull latch. The self-locking mechanism resists accidental unplugging from movement, impact or cable drag.

3) Sterilization & Materials

Shells are molded from medical-grade PSU (polysulfone family), selected for its high heat resistance and chemical durability. Assemblies are compatible with common hospital processes such as steam autoclave or gas sterilization, with testing demonstrating 100+ cycles when used within specified limits and with approved cleaning agents.

Tip: Always match sterilization temperature, exposure time and chemicals to the exact polymer/contact/backshell configuration listed in the product datasheet.

4) Usability & High-Density Design

  • Instant, one-handed operation. Push to lock, pull the sleeve to release—ideal for fast turnaround in ORs, ICUs and emergency care.

  • Lightweight & compact. Plastic shells reduce device mass and enable high-density panel layouts (solder or PCB terminations), supporting miniaturization and modular system designs.

MOCO P-Series Overview

The MOCO P-Series plastic push-pull family offers multiple shell sizes (approx. outer diameters around M10 / M14 / M17 classes) and a range of pin counts and keying options. Models are available with straight or right-angle terminations, cable or panel variants, and protective accessories (backshells, caps, seals). UL-recognized variants are available—check the specific model for details.

Typical Medical Applications

  • Patient monitors (ECG/SpO₂/NIBP)

  • Ventilators & anesthesia workstations

  • Ultrasound systems

  • Electrophysiology & neurodiagnostics

  • Infrared therapy devices

  • Endoscopy & surgical handpieces

  • Electrosurgery (HF) equipment

  • Defibrillators

  • Dental scalers and small instruments

  • CT/MRI-adjacent modules* (*use non-magnetic options)

Why Partner with MOCO

  • Recognized specialist. National high-tech & “specialized and innovative” enterprise status underscores focus in interconnects.

  • Certified quality management. ISO 13485:2016, ISO 9001:2015, IATF 16949—from design to mass production.

  • Compliance & market access. UL-recognized models, CE Declarations and RoHS documentation available for global shipments.

  • R&D and vertical manufacturing. ~8,000 m² site integrating machining, molds and injection molding, plus in-house test labs for verification.

  • IP portfolio. Multiple invention and utility patents demonstrate ongoing innovation in push-pull mechanisms and sealing/contacts.

  • Field-proven across demanding sectors. Medical is our core; experience also spans other high-reliability markets.

  • Customization at pace. Engineering support for pin layouts, keying, overmolded cables, labeling and sterilization-ready builds.

Clarifications & Corrections (Technical Accuracy)

  • Ingress Protection: Rather than saying “IP50–66,” we specify: up to IP66/67 when mated with the correct backshell/gasket; unmated may be IP50. Exact rating is model- and configuration-specific.

  • Current Ratings: “30 A” can be misleading for small medical signal layouts. We present realistic ranges: 2–7 A per signal contact, with higher currents possible only in dedicated power layouts of larger shells. Always verify the model’s rating.

  • CE wording: CE is a manufacturer’s Declaration of Conformity, not a third-party “certificate.” We adjusted the phrasing accordingly.

  • Series naming: The “OP/1P/2P” text can confuse readers. We instead describe the P-Series by shell size classes (≈M10/M14/M17 OD) and advise checking the exact datasheet codes.

  • MRI note: We added “non-magnetic options” for MRI-adjacent use because standard ferromagnetic parts are not MRI-safe.

MOCO plastic push-pull medical connectors on a sterile tray
Lightweight, sterilizable and secure: plastic push-pull connectors for modern medical devices.

Shenzhen MOCO Interconnect Co., Ltd. — Reliable, sterilization-ready interconnects for life-critical equipment.

Need a recommendation? Share your device specs (voltage/current, pin count, sterilization method, IP target, cable OD) and our engineers will map you to the right P-Series model.

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