M8 vs M12 Connectors for Outdoor Surveillance Cameras

M12 Circular Connectors by Type and Core Count

Choosing Between M8 and M12 Connectors for Outdoor Surveillance Cameras

When selecting a connector for an outdoor surveillance camera, the primary decision factor is the camera's power consumption. This guide compares the M8 and M12 series to help you match the connector to your specific camera's electrical and physical requirements.

Key Selection Criteria: Power and Physical Fit

The choice between M8 and M12 connectors depends on two main factors: the camera's power draw and the available space for wiring. The table below summarizes the core differences.

When to Choose the M8 Connector

For cameras with a power requirement of 10W or less, such as standard 2-megapixel models powered via Power over Ethernet (PoE), the M8 series is the appropriate choice. Its compact 8mm diameter is well-suited for the narrow wiring space typical of many camera housings. Additionally, the M8 connector offers a cost advantage, typically priced at about 60% of the unit price of an M12 connector.

When to Choose the M12 Connector

For higher-power cameras exceeding 10W, such as 4-megapixel models with infrared fill lights, the M12 series is recommended. The M12 connector provides a higher current-carrying capacity of 5A compared to the M8's 3A. This higher capacity helps prevent camera crashes or resets that can occur due to insufficient power supply.

Making the Final Decision

To summarize, your selection should be based on the following:

• Power Consumption: Check the camera's power specification. If it is ≤10W, select M8; if it is >10W, select M12.
• Physical Space: Verify that the connector's diameter (8mm for M8, 12mm for M12) fits within the camera's housing and cable routing constraints.
• Current Requirements: Ensure the connector's current rating (3A for M8, 5A for M12) meets or exceeds the camera's peak current draw.

For more detailed information on connector types and configurations, you can review our M12 Circular Connectors by Type and Core Count. If you are working with lower-power devices, you may also find our guide on M8 Low-Power Connectors for Battery-Powered Field Security Cameras useful.