Plastic circular connectors with a PC (polycarbonate) shell are a type of connector used in various applications where a combination of durability, lightweight construction, and cost-effectiveness is desired. These connectors are particularly popular in industries where the connectors need to be robust but not as heavy or costly as metal connectors.

Key Features:

1. Polycarbonate (PC) Shell:

   • Durable: Polycarbonate is a tough, impact-resistant plastic that can withstand mechanical stress.
   • Lightweight: Compared to metal connectors, PC shell connectors are much lighter, making them ideal for applications where weight reduction is crucial.
   • Transparent or Opaque: Polycarbonate can be made transparent or opaque, allowing for different aesthetic or functional applications.

2. Circular Design:

   • Compact and Versatile: The circular design is space-efficient and allows for a wide range of pin configurations, making these connectors suitable for various applications.
   • 360-Degree Shielding: While the plastic itself isn't conductive, the circular shape often allows for easier integration of shielding materials when needed, although the primary insulation is provided by the plastic shell.

3. Secure Push-Pull Mechanism:

   • Quick Connection: The push-pull mechanism allows for fast, secure connections that can be engaged or disengaged without tools.
   • Vibration Resistance: The design helps to prevent accidental disconnection due to vibration or other mechanical forces.

4. Corrosion Resistance:

   • Non-Metallic: Since the shell is made of plastic, these connectors are naturally resistant to corrosion, making them suitable for use in environments where metal connectors might degrade.

5. Electrical Insulation:

   • Safety: The polycarbonate shell provides excellent electrical insulation, reducing the risk of short circuits or electrical faults.

Applications:

• Medical Devices: Commonly used in medical equipment where sterilization, lightweight, and ease of connection are important.
• Consumer Electronics: Ideal for products that require reliable connections without adding significant weight or cost.
• Industrial Automation: Used in control systems and sensors where robust but cost-effective connectors are needed.
• Automotive: Suitable for various low-current applications within vehicles, especially where space and weight are limited.

Brands and Manufacturers:

Manufacturers like LEMO, Hirose Electric, and Amphenol offer a range of plastic circular connectors with polycarbonate shells, tailored to different industries and applications.