Infusion Pump Medical Power Connectors Overview
Characteristics of Infusion Pump Medical Power Connectors
- Power Range: Typically 12V or 24V output, with power around 30W to 60W
- Current Requirement: Usually 1A to 5A, depending on the specific model and functionality
- Key Connector Features:
- Stable and reliable power connection to prevent treatment interruptions caused by power loss
- Low leakage current to meet medical safety standards
- Compact size suitable for confined internal device spaces
- Good vibration resistance to prevent connector loosening
- Support for multiple output interfaces (control signals, motor drive, display, etc.)
Typical Power Connector Layout for Infusion Pumps
| Module | Voltage Level | Recommended Connector Type | Description |
| Main Control Board | 5V | JST XH 2.54mm | Low current supply, signal module connection |
| Motor Drive Module | 12V/24V | Molex Mini-Fit Jr. | High current output, drives pump motor |
| Display (LCD/OLED) | 3.3V/5V | JST PH / Molex | Power supply for display control module |
| Alarm Buzzer | 5V | JST PH | Low current signal power supply |
| External Adapter Input | 12V/24V | φ5.5×2.1mm DC Barrel Plug | Standard power adapter interface |
Design and Selection Recommendations
- Choose connectors that support medical certifications such as IEC 60601-1 and UL to ensure leakage current and insulation safety.
- Ensure the rated current meets the maximum load requirement, with a recommended 20% margin for safety.
- Use connectors with locking or anti-misplug designs to prevent loosening or incorrect plugging during device operation.
- Connector materials should have flame retardant properties (UL94 V-0) and high temperature resistance to ensure long-term safe operation.
- Consider the protection rating (e.g., IP rating) and EMC interference resistance, especially for sensitive medical environments.
- For devices with multiple outputs, plan the number of connectors and voltage distribution carefully to avoid interference and safety risks.