M12 B code Female Circular Connector-Panel Mount,Solder Connection,M16x1.5, Front Fastened
- Model
- MC12BF-05R2LSLLS301
Item specifics
- Type
- M12 Circular Connector
- Contact Connection Type
- Female Connector
- Number OF Positions
- 3 Pin(3/4/5Pin Optional)
- Coding
- B
- Termination
- Solder
- Mounting Type
- Front Fastened
- Shielded Option
- Unshielded
- Approval
- UL
- Pollution
- III
- Flame Retardant
- IEC61076-2-111
Review
Description
M12 Circular Connector characteristic

Description
- M12 round connector provides multiple key control options (A, B, C, D, K, L, M, P, S, T, X, Y) and pins (2, 3, 4, 5, 6 , 8, 12, 17), ensure reliable connection and stable signal transmission.
- Its compact design and high reliability are suitable for various applications such as industrial automation, robotics and process control.
- The M12 circular connector is designed with a threading, which is easy to install and has IP67/IP68 waterproof level. Use national standard brass and thickened copper core to ensure excellent conductivity. Nickel -plated metal shells and wear -resistant nuts provide a firm connection, the contact is plated, and the life span is 500 times, and the contact resistance is low.
M12 Circular Connector Specification
Shell Material | Brass Nickel Plated/Zinc Alloy Nickel Plated/PA+GF | |
Sealing Material | Epoxy Resin/Rubber | |
Contact Material | Phosphor Copper Gold Plated/Brass Gold Plated | |
Insulator Material | PA+PA+GF/TPU | |
Molding Material | TPU/PVC | |
Contact Resistance | ≤5mΩ | |
Durability | ≥ 500 Cycles | |
Insulation Resistance | 100 MΩ | |
Applicable Temperature | -40℃ Tо +80℃ | |
Waterproof Grade | IP67/IP68 |
M12 Circular Connector Size diagram

M12 Circular Connector Electrical parameter:
Product model | Pins | Rated current | Rated voltage | Wire Gauge/Size | |||
A/C | D/C | AWG | mm² | ||||
MC12BF-03R2LSLLS301 | 3 | 4A | 250V | 250V | 22 | 0.34 | |
MC12BF-04R2LSLLS301 | 4 | 4A | 250V | 250V | 22 | 0.34 | |
MC12BF-05R2LSLLS301 | 5 | 4A | 60V | 60V | 22 | 0.34 |
M12 Circular Connector Coding Parameter:
Pins | 3B | 4B | 5B |
Male | ![]() |
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Pins | 3B | 4B | 5B |
Female | ![]() |
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Note: If you need more parameter pictures or can not see clearly, please contact our customer service staff
M12 Circular Connector Wire Definition:
Pins | 3 Pin Core Color | Pins | 4 Pin Core Color | Pins | 5 Pin Core Color | ||||||
1 | BN | ![]() |
1 | BN | ![]() |
1 | BN | ![]() |
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2 | - | ![]() |
2 | WH | ![]() |
2 | WH | ![]() |
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3 | BU | ![]() |
3 | BU | ![]() |
3 | BU | ![]() |
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4 | BK | 4 | BK | 4 | BK | ![]() |
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5 | GY | ![]() |
Remark: Wiring definition according to conventional standards. if according to the agreement or other please contact our sales.
M12 Circular Connector Application:

Industrial Automation

Food Packaging

Warehousing Logistics

Automated Production