The M12 B coded circular connector is a circular connector specially designed for industrial environments, mainly used in Profibus and some other fieldbus protocols.
☑ Coding Keyway Structure:The B coding adopts a unique keyway positioning system. It achieves physical foolproof design to ensure incompatibility with other codings such as A, C, D, and X, effectively preventing misplugging risks when connecting fieldbus devices.
☑ Plug-in Board Type;It is directly soldered on the printed circuit board (PCB), which makes the electrical connection between the connector and the PCB more stable. Meanwhile, it also simplifies the installation and maintenance processes.
☑ Two-stage Sealing Design：The metal thread provides mechanical locking, and the silicone rubber sealing ring achieves IP67/68 protection level. It can withstand an ambient temperature range of -40℃ to +85℃ and a vibration acceleration of 10G.
☑ Signal Transmission Characteristics：It supports fieldbus protocols including PROFIBUS DP/PA and INTERBUS.
☑ Voltage and Current：It supports a rated voltage of 250V and a maximum carrying current of up to 4A, suitable for the needs of transmitting low-to-medium power signals.
☑ Durability;The high-quality brass or phosphor bronze terminals undergo solid gold plating treatment, featuring strong oxidation resistance and ensuring a plug-in life of more than 500 times.
| Pins | 3B | 4B | 5B |
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| Pins | 3B | 4B | 5B |
| Female |
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| Pins | 3 Pin Core Color | Pins | 4 Pin Core Color | Pins | 5 Pin Core Color | |||
| 1 | BN |  |
1 | BN | |
1 | BN | |
| 2 | - |  |
2 | WH |  |
2 | WH | |
| 3 | BU |  |
3 | BU | |
3 | BU | |
| 4 | BK |  |
4 | BK | |
4 | BK | |
| 5 | GY |  |
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| Pins | 2A | 3A | 4A | 4D | 5A |
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| 5B | 6A | 8A | 12A | 17A | |
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| Pins | 2A | 3A | 4A | 4D | 5A |
| Female |
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| 5B | 6A | 8A | 12A | 17A | |
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CONNODER is a leading manufacturer and supplier specializing in the development and production of high - quality circular connectors for harsh environments. These connectors are widely used in the automotive, broadband communication, commercial aerospace, defense, industrial, information technology and data communication, mobile devices and mobile networks around the world.
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