Circular connectors are widely used across various industries due to their robustness, reliability, and versatility in transmitting power, signals, and data.

Here are some key applications of circular connectors:

1. **Aerospace & Defense**
- Used in avionics, radar systems, and communication equipment.
- Resistant to vibration, shock, and extreme temperatures.
- Examples: MIL-DTL-38999, MIL-DTL-5015 connectors.

2. **Industrial Automation & Machinery**
- Connect sensors, actuators, and control systems in harsh environments.
- IP-rated for dust/water resistance (e.g., IP67, IP68).
- Common standards: M8, M12 connectors (IEC 61076-2).

3. **Medical Equipment**

- Used in imaging systems (MRI, CT scanners), patient monitors, and surgical tools.
- Designed for EMI shielding and easy sterilization.

4. **Automotive & Transportation**
- Found in electric vehicles (EV charging ports), engine controls, and infotainment systems.
- High-current variants for battery and power distribution.

5. **Energy & Renewable Power**
- Solar/wind turbine connections, power distribution systems.
- Resistant to UV radiation and environmental stress.

6. **Marine & Offshore**
- Corrosion-resistant connectors for navigation and communication systems.
- Often made from stainless steel or sealed against saltwater.

7. **Telecommunications & Data Centers**
- Fiber optic circular connectors (e.g., MTP/MPO) for high-speed data transfer.
- Used in 5G infrastructure and server connections.

8. **Military & Ruggedized Equipment**
- Secure, tamper-proof designs for field communications and weapon systems.
- Compliant with MIL-SPEC standards.

9. **Consumer Electronics**
- Audio connectors (XLR for microphones), USB-C, and power connectors.