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M12 B-Code Circular Metric Connectors

Amphenol LTW M12 B-Code Circular Metric Connectors offer 2 to 8 pins and feature a screw-thread mating style with complete 360° shielding. Compliant with IEC 61076-2-101, these connectors ensure industry-wide connector compatibility. Key features include a vibration-proof, corrosion-resistant design and a waterproof IP67/IP68/IP69K protection rating. Amphenol LTW M12 B-Code Circular Metric Connectors are suitable for wet and harsh environments, such as surveillance systems, mass rapid transit/railways, industrial automation, and broadband wireless access.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) Filter the results in the table by unit price based on your quantity.	Qty.
Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Plastic, 4A, 05 pins, Female Connector, Female Contact, Right Angle, Screw Thread, Overmolded, Length 1000mm, IP68 / IP69K MSBP-05BFFM-SR8A01 Amphenol LTW 1: £7.81 9In Stock	Mfr. Part No. MSBP-05BFFM-SR8A01 Mouser Part No 523-MSBP05BFFMSR8A01	Amphenol LTW	Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Plastic, 4A, 05 pins, Female Connector, Female Contact, Right Angle, Screw Thread, Overmolded, Length 1000mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	9In Stock	£7.81 £6.40 £5.97 £5.90 View £5.57 £5.23 £4.94 £4.64 £4.58	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Male Connector, Male Contact, Straight-to-Straight, Screw Thread, Overmolded Double Ended, Length 3000mm, IP68 / IP69K M12B05ML-12BML-SD003 Amphenol LTW 1: £15.26 6In Stock	Mfr. Part No. M12B05ML-12BML-SD003 Mouser Part No 523-2B05ML12BMLSD003	Amphenol LTW	Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Male Connector, Male Contact, Straight-to-Straight, Screw Thread, Overmolded Double Ended, Length 3000mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	6In Stock	£15.26 £12.27 £11.15 £10.59 View £10.23 £9.86 £9.47 Quote	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Male Connector, Male Contact, Straight-to-Straight, Screw Thread, Overmolded Double Ended, Length 3000mm, IP68 / IP69K M12B05ML-12BFL-SD003 Amphenol LTW 1: £15.27 1In Stock	Mfr. Part No. M12B05ML-12BFL-SD003 Mouser Part No 523-2B05ML12BFLSD003	Amphenol LTW	Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Male Connector, Male Contact, Straight-to-Straight, Screw Thread, Overmolded Double Ended, Length 3000mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	1In Stock	£15.27 £12.49 £12.36 £10.76 View £10.48 £10.16 £9.90	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Hexagonal, Screw Thread, Crimp, Receptacle With Cable/Wire, Length 1000mm, IP68 / IP69K M12B-05PFFC-SH8CA0 Amphenol LTW 1: £8.39 3In Stock	Mfr. Part No. M12B-05PFFC-SH8CA0 Mouser Part No 523-M12B05PFFCSH8CA0	Amphenol LTW	Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Hexagonal, Screw Thread, Crimp, Receptacle With Cable/Wire, Length 1000mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	3In Stock	£8.39 £7.90 £7.60 £7.40 View £7.06 £6.68 £6.36 £6.11 Quote	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Straight-to-Straight, Screw Thread, Overmolded Double Ended, Length 10000mm, IP68 / IP69K MSBS05FL-SBSFL-SB010 Amphenol LTW 1: £56.44 2In Stock	Mfr. Part No. MSBS05FL-SBSFL-SB010 Mouser Part No 523-BS05FLSBSFLSB010	Amphenol LTW	Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Straight-to-Straight, Screw Thread, Overmolded Double Ended, Length 10000mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	2In Stock	£56.44 £50.48 £43.68 £41.30 View £41.28 Quote	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Straight-to-Straight, Screw Thread, Overmolded Double Ended, Length 3000mm, IP68 / IP69K MSBS05FL-SBSFL-SD003 Amphenol LTW 1: £27.70 5In Stock	Mfr. Part No. MSBS05FL-SBSFL-SD003 Mouser Part No 523-BS05FLSBSFLSD003	Amphenol LTW	Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Straight-to-Straight, Screw Thread, Overmolded Double Ended, Length 3000mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	5In Stock	£27.70 £23.68 £20.64 £20.05 View £19.68 £19.11 Quote	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Straight-to-Straight, Screw Thread, Overmolded Double Ended, Length 2000mm, IP68 / IP69K MSBS05FL-SBSFL-SD002 Amphenol LTW 1: £24.84 8In Stock	Mfr. Part No. MSBS05FL-SBSFL-SD002 Mouser Part No 523-BS05FLSBSFLSD002	Amphenol LTW	Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Straight-to-Straight, Screw Thread, Overmolded Double Ended, Length 2000mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	8In Stock	£24.84 £21.42 £18.55 £18.02 View £17.69 £17.19 Quote	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Male Connector, Male Contact, Straight-to-Straight, Screw Thread, Overmolded Double Ended, Length 5000mm, IP68 / IP69K MSBS05ML-SBSFL-SB005 Amphenol LTW 1: £39.97 8In Stock	Mfr. Part No. MSBS05ML-SBSFL-SB005 Mouser Part No 523-BS05MLSBSFLSB005	Amphenol LTW	Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Male Connector, Male Contact, Straight-to-Straight, Screw Thread, Overmolded Double Ended, Length 5000mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	8In Stock	£39.97 £33.86 £30.24 £29.39 View £28.35 Quote	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Hexagonal, Screw Thread, Crimp, Receptacle With Cable/Wire, Length 500mm, IP68 / IP69K M12B-05PFFC-SH8C50 Amphenol LTW 1: £8.61 1In Stock	Mfr. Part No. M12B-05PFFC-SH8C50 Mouser Part No 523-M12B05PFFCSH8C50	Amphenol LTW	Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Hexagonal, Screw Thread, Crimp, Receptacle With Cable/Wire, Length 500mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	1In Stock	£8.61 £7.75 £7.30 £7.11 View £6.93 £6.18 £5.81 £4.88	Min.: 1 Mult.: 1
Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Straight, Screw Thread, Solder, Field Installable, F4.5 - F6.5mm, IP67 Mated MSBS-05BFFA-SL7001 Amphenol LTW 1: £12.52 9In Stock	Mfr. Part No. MSBS-05BFFA-SL7001 Mouser Part No 523-MSBS05BFFASL7001	Amphenol LTW	Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Straight, Screw Thread, Solder, Field Installable, F4.5 - F6.5mm, IP67 Mated Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	9In Stock	£12.52 £10.64 £10.09 £8.74 View £8.31 £7.92 £7.69 £7.42 Quote	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Male Connector, Male Contact, Straight-to-Right Angle, Screw Thread, Overmolded Double Ended, Length 1000mm, IP68 / IP69K M12B05ML-12BFR-SB001 Amphenol LTW 1: £13.00 5In Stock	Mfr. Part No. M12B05ML-12BFR-SB001 Mouser Part No 523-2B05ML12BFRSB001	Amphenol LTW	Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Male Connector, Male Contact, Straight-to-Right Angle, Screw Thread, Overmolded Double Ended, Length 1000mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	5In Stock	£13.00 £10.60 £9.53 £9.06 View £8.76 £8.44 £8.11 Quote	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Straight, Screw Thread, Overmolded, Length 5000mm, IP68 / IP69K M12B-05BFFM-SL8B05 Amphenol LTW 1: £16.93 8In Stock	Mfr. Part No. M12B-05BFFM-SL8B05 Mouser Part No 523-M12B05BFFMSL8B05	Amphenol LTW	Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Straight, Screw Thread, Overmolded, Length 5000mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	8In Stock	£16.93 £14.39 £13.62 £11.78 View £11.38 £11.01 £10.66 £10.29 Quote	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Straight, Screw Thread, Overmolded, Length 5000mm, IP68 / IP69K M12B-05BFFM-SL8D05 Amphenol LTW 1: £13.16 5In Stock	Mfr. Part No. M12B-05BFFM-SL8D05 Mouser Part No 523-M12B05BFFMSL8D05	Amphenol LTW	Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Straight, Screw Thread, Overmolded, Length 5000mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	5In Stock	£13.16 £11.19 £11.07 £10.00 View £9.44 £9.22 £8.93 £8.88 Quote	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Male Connector, Male Contact, Straight, Screw Thread, Overmolded, Length 4000mm, IP68 / IP69K M12B-05BMMM-SL8D04 Amphenol LTW 1: £11.92 100In Stock 210Expected 08/01/2027	Mfr. Part No. M12B-05BMMM-SL8D04 Mouser Part No 523-M12B05BMMMSL8D04	Amphenol LTW	Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Male Connector, Male Contact, Straight, Screw Thread, Overmolded, Length 4000mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	100In Stock 210Expected 08/01/2027	£11.92 £9.89 £9.53 £8.93 View £7.94 £7.80 £7.75	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Straight, Screw Thread, Overmolded, Length 10000mm, IP68 / IP69K M12B-05BFFM-SL8D10 Amphenol LTW 1: £20.09 3In Stock 20Expected 08/01/2027	Mfr. Part No. M12B-05BFFM-SL8D10 Mouser Part No 523-M12B05BFFMSL8D10	Amphenol LTW	Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Straight, Screw Thread, Overmolded, Length 10000mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	3In Stock 20Expected 08/01/2027	£20.09 £17.43 £17.08 £14.67 View £14.40 £14.13 £13.75 Quote	Min.: 1 Mult.: 1
Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Male Connector, Male Contact, Straight, Screw Thread, Solder, Field Installable, F4.5 - F6.5mm, IP67 Mated MSBS-05BMMA-SL7001 Amphenol LTW 1: £12.11 9In Stock	Mfr. Part No. MSBS-05BMMA-SL7001 Mouser Part No 523-MSBS05BMMASL7001	Amphenol LTW	Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Male Connector, Male Contact, Straight, Screw Thread, Solder, Field Installable, F4.5 - F6.5mm, IP67 Mated Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	9In Stock	£12.11 £10.28 £9.76 £8.45 View £8.04 £7.66 £7.44 £7.18 Quote	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Straight-to-Straight, Screw Thread, Overmolded Double Ended, Length 5000mm, IP68 / IP69K MSBS05FL-SBSFL-SD005 Amphenol LTW 1: £33.65 7In Stock	Mfr. Part No. MSBS05FL-SBSFL-SD005 Mouser Part No 523-BS05FLSBSFLSD005	Amphenol LTW	Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Straight-to-Straight, Screw Thread, Overmolded Double Ended, Length 5000mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	7In Stock	£33.65 £29.28 £23.96 £23.26 View £22.17 Quote	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, PROFIBUS, Metal, 4A, 02 pins, Male Connector, Male Contact, Straight, Screw Thread, Overmolded, Length 2000mm, IP68 / IP69K MSBS-02BMMM-SL8M02 Amphenol LTW 1: £15.85 30In Stock	Mfr. Part No. MSBS-02BMMM-SL8M02 Mouser Part No 523-MSBS02BMMMSL8M02	Amphenol LTW	Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, PROFIBUS, Metal, 4A, 02 pins, Male Connector, Male Contact, Straight, Screw Thread, Overmolded, Length 2000mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	30In Stock	£15.85 £14.70 £13.92 £12.82 View £11.38 £11.02 £10.63	Min.: 1 Mult.: 1
Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 03 pins, Female Connector, Female Contact, Straight, Screw Thread, Solder, Field Installable, F4.5 - F6.5mm, IP68 Mated M12B-03BFFA-SL8001 Amphenol LTW 1: £6.90 8In Stock	Mfr. Part No. M12B-03BFFA-SL8001 Mouser Part No 523-M12B03BFFASL8001	Amphenol LTW	Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 03 pins, Female Connector, Female Contact, Straight, Screw Thread, Solder, Field Installable, F4.5 - F6.5mm, IP68 Mated Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	8In Stock	£6.90 £5.87 £5.43 £5.23 View £4.98 £4.67 £4.44 £4.23 £4.18	Min.: 1 Mult.: 1
Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 03 pins, Male Connector, Male Contact, Straight, Screw Thread, Solder, Field Installable, F4.5 - F6.5mm, IP68 Mated M12B-03BMMA-SL8001 Amphenol LTW 1: £6.84 4In Stock	Mfr. Part No. M12B-03BMMA-SL8001 Mouser Part No 523-M12B03BMMASL8001	Amphenol LTW	Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 03 pins, Male Connector, Male Contact, Straight, Screw Thread, Solder, Field Installable, F4.5 - F6.5mm, IP68 Mated Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	4In Stock	£6.84 £5.68 £5.26 £5.07 View £4.83 £4.53 £4.31 £4.02 £4.01	Min.: 1 Mult.: 1
Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Straight, Screw Thread, Screw-in, Field Installable, F4.0 - F8.0mm, IP67 Mated M12B-05BFFB-SL7001 Amphenol LTW 1: £9.35 9In Stock	Mfr. Part No. M12B-05BFFB-SL7001 Mouser Part No 523-M12B05BFFBSL7001	Amphenol LTW	Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Straight, Screw Thread, Screw-in, Field Installable, F4.0 - F8.0mm, IP67 Mated Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	9In Stock	£9.35 £8.98 £8.14 £7.93 View £7.38 £6.79 £6.35 £5.82 Quote	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Straight, Screw Thread, Overmolded, Length 1000mm, IP68 / IP69K M12B-05BFFM-SL8D01 Amphenol LTW 1: £7.70 2In Stock	Mfr. Part No. M12B-05BFFM-SL8D01 Mouser Part No 523-M12B05BFFMSL8D01	Amphenol LTW	Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Straight, Screw Thread, Overmolded, Length 1000mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	2In Stock	£7.70 £6.54 £6.05 £5.83 View £5.55 £5.21 £4.91 £4.57 £4.52	Min.: 1 Mult.: 1
Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Male Connector, Male Contact, Straight, Screw Thread, Solder, Field Installable, F4.5 - F6.5mm, IP68 Mated M12B-05BMMA-SL8001 Amphenol LTW 1: £7.11 6In Stock	Mfr. Part No. M12B-05BMMA-SL8001 Mouser Part No 523-M12B05BMMASL8001	Amphenol LTW	Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Male Connector, Male Contact, Straight, Screw Thread, Solder, Field Installable, F4.5 - F6.5mm, IP68 Mated Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	6In Stock	£7.11 £6.04 £5.60 £5.39 View £5.12 £4.72 £4.43 £4.15 £4.10	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables Circular Metric Connector MPronto-12 (M12 Push Pull), B Code, Metal, 4A, 05 pins, Male Connector, Male Contact, Straight, Overmolded, Length 2000mm, IP68 Mated M12B-05BMMM-PL8D02 Amphenol LTW 1: £9.14 9In Stock	Mfr. Part No. M12B-05BMMM-PL8D02 Mouser Part No 523-M12B05BMMMPL8D02	Amphenol LTW	Sensor Cables / Actuator Cables Circular Metric Connector MPronto-12 (M12 Push Pull), B Code, Metal, 4A, 05 pins, Male Connector, Male Contact, Straight, Overmolded, Length 2000mm, IP68 Mated Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	9In Stock	£9.14 £7.93 £7.43 £7.08 View £6.74 £6.31 £6.01 £5.73	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Straight-to-Right Angle, Screw Thread, Overmolded Double Ended, Length 500mm, IP68 / IP69K M12B05FL-12BMR-SDA05 Amphenol LTW 1: £8.42 8In Stock	Mfr. Part No. M12B05FL-12BMR-SDA05 Mouser Part No 523-M12B05FLBMRSDA05	Amphenol LTW	Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Straight-to-Right Angle, Screw Thread, Overmolded Double Ended, Length 500mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	8In Stock	£8.42 £7.92 £7.25 £6.93 £6.73	Min.: 1 Mult.: 1