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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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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 500mm, IP68 / IP69K M12B05ML-12BML-SDA05 Amphenol LTW 1: €10.94 10In Stock	Mfr. Part No. M12B05ML-12BML-SDA05 Mouser Part No 523-M12B05MLBMLSDA05	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 500mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	10In Stock	€10.94 €8.71 €7.87 €7.45 €7.40	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 150mm, IP68 / IP69K M12B-05PFFC-SF8B15 Amphenol LTW 1: €8.75 6In Stock	Mfr. Part No. M12B-05PFFC-SF8B15 Mouser Part No 523-M12B05PFFCSF8B15	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 150mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	6In Stock	€8.75 €7.43 €6.88 €6.63 View €6.32 €5.87 €5.50 €5.16 €5.10	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 150mm, IP68 / IP69K M12B-05PFFC-SH8C15 Amphenol LTW 1: €9.02 6In Stock	Mfr. Part No. M12B-05PFFC-SH8C15 Mouser Part No 523-M12B05PFFCSH8C15	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 150mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	6In Stock	€9.02 €7.66 €7.10 €6.85 View €6.52 €6.06 €5.68 €5.24 €5.18	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Hexagonal, M12*1.0, Screw Thread, PCB 90 , Receptacle, Front Fastened, IP67 Mated M12B-05PFFR-SF7003 Amphenol LTW 1: €9.15 30In Stock	Mfr. Part No. M12B-05PFFR-SF7003 Mouser Part No 523-M12B05PFFRSF7003	Amphenol LTW	Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Hexagonal, M12*1.0, Screw Thread, PCB 90 , Receptacle, Front Fastened, IP67 Mated Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	30In Stock	€9.15 €7.94 €7.14 €6.80 View €6.41 €5.93 €5.57 €5.21 €5.16	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M Series Sensor Connector, M12, B Code, Plastic, 4A, 05 pins, Male Connector, Male Contact, DIP 90 M12B-05PMMR-EE0001 Amphenol LTW 1: €6.18 61In Stock	Mfr. Part No. M12B-05PMMR-EE0001 Mouser Part No 523-M12B05PMMREE0001	Amphenol LTW	Sensor Cables / Actuator Cables M Series Sensor Connector, M12, B Code, Plastic, 4A, 05 pins, Male Connector, Male Contact, DIP 90 Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	61In Stock	€6.18 €5.25 €4.37 €4.16 View €3.96 €3.78	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Male Connector, Male Contact, Hexagonal, PG9, Screw Thread, Solder, Receptacle, Front Fastened, Panel Thickness 4.5, IP68 / IP69K M12B-05PMMS-SF8001 Amphenol LTW 1: €6.71 1In Stock	Mfr. Part No. M12B-05PMMS-SF8001 Mouser Part No 523-M12B05PMMSSF8001	Amphenol LTW	Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Male Connector, Male Contact, Hexagonal, PG9, Screw Thread, Solder, Receptacle, Front Fastened, Panel Thickness 4.5, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	1In Stock	€6.71 €5.45 €5.11 €4.82 View €4.48 €4.16 €3.81 €3.60	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Plastic, 4A, 05 pins, Male Connector, Male Contact, Straight-to-Straight, Screw Thread, Overmolded Double Ended, Length 500mm, IP68 / IP69K MSBP05ML-SBPFL-SDA05 Amphenol LTW 1: €10.86 5In Stock	Mfr. Part No. MSBP05ML-SBPFL-SDA05 Mouser Part No 523-MB05MLBFLSDA05	Amphenol LTW	Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Plastic, 4A, 05 pins, Male Connector, Male Contact, Straight-to-Straight, Screw Thread, Overmolded Double Ended, Length 500mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	5In Stock	€10.86 €9.23 €8.64 €8.23 View €7.84 €7.35 €7.33	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Plastic, 4A, 05 pins, Female Connector, Female Contact, Right Angle-to-Right Angle, Screw Thread, Overmolded Double Ended, Length 1000mm, IP68 / IP69K MSBP05FR-SBPFR-SD001 Amphenol LTW 1: €14.70 1In Stock	Mfr. Part No. MSBP05FR-SBPFR-SD001 Mouser Part No 523-MSBP05FRSBPFRSD1	Amphenol LTW	Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Plastic, 4A, 05 pins, Female Connector, Female Contact, Right Angle-to-Right Angle, Screw Thread, Overmolded Double Ended, Length 1000mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	1In Stock	€14.70 €12.49 €11.70 €11.15 View €10.24 €9.75 €9.41 €9.13 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 1000mm, IP68 / IP69K MSBS-02BMMM-SL8M01 Amphenol LTW 1: €14.66 3In Stock	Mfr. Part No. MSBS-02BMMM-SL8M01 Mouser Part No 523-MSBS02BMMMSL8M01	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 1000mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	3In Stock	€14.66 €12.79 €11.99 €11.41 View €10.46 €10.05 €9.56 €9.31 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 5000mm, IP68 / IP69K MSBS-02BMMM-SL8M05 Amphenol LTW 1: €31.85 2In Stock	Mfr. Part No. MSBS-02BMMM-SL8M05 Mouser Part No 523-MSBS02BMMMSL8M05	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 5000mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	2In Stock	€31.85 €27.62 €26.02 €23.08 View €22.10 €21.39 €21.28	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 150mm, IP68 / IP69K MSBS-05PFFC-SF8B15 Amphenol LTW 1: €8.98 10In Stock	Mfr. Part No. MSBS-05PFFC-SF8B15 Mouser Part No 523-MSBS05PFFCSF8B15	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 150mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	10In Stock	€8.98 €7.76 €6.99 €6.77 View €6.40 €5.90 €5.54 €5.19 €5.13	Min.: 1 Mult.: 1
Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Hexagonal, PG9, Screw Thread, PCB 180 , Receptacle, Front Fastened, Panel Thickness 4.5, IP68 / IP69K MSBS-05PFFP-SF8001 Amphenol LTW 1: €7.62 4In Stock	Mfr. Part No. MSBS-05PFFP-SF8001 Mouser Part No 523-MSBS05PFFPSF8001	Amphenol LTW	Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Hexagonal, PG9, Screw Thread, PCB 180 , Receptacle, Front Fastened, Panel Thickness 4.5, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	4In Stock	€7.62 €6.47 €5.99 €5.78 View €5.50 €5.15 €4.91 €4.68 €4.64	Min.: 1 Mult.: 1
Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Hexagonal, M16*1.5, Screw Thread, PCB 180 , Receptacle, Front Fastened, IP68 / IP69K MSBS-05PFFP-SF8002 Amphenol LTW 1: €7.88 9In Stock	Mfr. Part No. MSBS-05PFFP-SF8002 Mouser Part No 523-MSBS05PFFPSF8002	Amphenol LTW	Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Hexagonal, M16*1.5, Screw Thread, PCB 180 , Receptacle, Front Fastened, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	9In Stock	€7.88 €6.69 €6.19 €5.97 View €5.66 €5.22 €4.90 €4.58 €4.52	Min.: 1 Mult.: 1
Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Male Connector, Male Contact, Hexagonal, PG9, Screw Thread, PCB 180 , Receptacle, Front Fastened, Panel Thickness 4.5, IP68 / IP69K MSBS-05PMMP-SF8001 Amphenol LTW 1: €6.74 1In Stock	Mfr. Part No. MSBS-05PMMP-SF8001 Mouser Part No 523-MSBS05PMMPSF8001	Amphenol LTW	Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Male Connector, Male Contact, Hexagonal, PG9, Screw Thread, PCB 180 , Receptacle, Front Fastened, Panel Thickness 4.5, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	1In Stock	€6.74 €5.73 €5.30 €5.11 View €4.87 €4.57 €4.30 €4.03 €3.93	Min.: 1 Mult.: 1
Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Male Connector, Male Contact, Hexagonal, M16*1.5, Screw Thread, PCB 180 , Receptacle, Front Fastened, Panel Thickness 4.5, IP68 / IP69K MSBS-05PMMP-SF8002 Amphenol LTW 1: €6.97 5In Stock	Mfr. Part No. MSBS-05PMMP-SF8002 Mouser Part No 523-MSBS05PMMPSF8002	Amphenol LTW	Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Male Connector, Male Contact, Hexagonal, M16*1.5, Screw Thread, PCB 180 , Receptacle, Front Fastened, Panel Thickness 4.5, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	5In Stock	€6.97 €5.93 €5.48 €5.29 View €5.03 €4.70 €4.38 €3.99 €3.89	Min.: 1 Mult.: 1
Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Male Connector, Male Contact, Hexagonal, M12*1.0, Screw Thread, PCB 90 , Receptacle, Front Fastened, IP67 Mated MSBS-05PMMR-SF7003 Amphenol LTW 1: €7.93 9In Stock	Mfr. Part No. MSBS-05PMMR-SF7003 Mouser Part No 523-MSBS05PMMRSF7003	Amphenol LTW	Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Male Connector, Male Contact, Hexagonal, M12*1.0, Screw Thread, PCB 90 , Receptacle, Front Fastened, IP67 Mated Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	9In Stock	€7.93 €6.73 €6.05 €5.76 View €5.60 €5.21 €4.89 €4.58 €4.54	Min.: 1 Mult.: 1
Circular Metric Connectors M12 Circular Metric Connector, B Code, Plastic, 4A, 05 pins, Male Connector, Male Contact, SMT 180 MSBS-05PMMT-EE0001 Amphenol LTW 1: €4.49 10In Stock	Mfr. Part No. MSBS-05PMMT-EE0001 Mouser Part No 523-MSBS05PMMTEE8001	Amphenol LTW	Circular Metric Connectors M12 Circular Metric Connector, B Code, Plastic, 4A, 05 pins, Male Connector, Male Contact, SMT 180 Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	10In Stock	€4.49 €3.80 €3.57 €3.41 View €3.32 €3.10 €2.98	Min.: 1 Mult.: 1
Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 04 pins, Female Connector, Female Contact, Straight, Screw Thread, Solder, Field Installable, F4.5 - F6.5mm, IP68 Mated M12B-04BFFA-SL8001 Amphenol LTW 1: €8.39 81In Stock	Mfr. Part No. M12B-04BFFA-SL8001 Mouser Part No 523-M12B04BFFASL8001	Amphenol LTW	Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 04 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	81In Stock	€8.39 €7.23 €7.20 €7.10 View €6.14 €5.76 €5.49 €5.22	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 04 pins, Female Connector, Female Contact, Straight, Screw Thread, Overmolded, Length 1000mm, IP68 / IP69K M12B-04BFFM-SL8A01 Amphenol LTW 1: €8.11 9In Stock	Mfr. Part No. M12B-04BFFM-SL8A01 Mouser Part No 523-M12B04BFFMSL8A01	Amphenol LTW	Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 04 pins, Female Connector, Female Contact, Straight, Screw Thread, Overmolded, Length 1000mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	9In Stock	€8.11 €6.81 €6.22 €6.05 View €5.65 €5.19 €4.80 €4.63	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 04 pins, Male Connector, Male Contact, Straight, Screw Thread, Overmolded, Length 1000mm, IP68 / IP69K M12B-04BMMM-SL8A01 Amphenol LTW 1: €6.59 3In Stock 30Expected 08/02/2027	Mfr. Part No. M12B-04BMMM-SL8A01 Mouser Part No 523-M12B04BMMMSL8A01	Amphenol LTW	Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 04 pins, Male Connector, Male Contact, Straight, Screw Thread, Overmolded, Length 1000mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	3In Stock 30Expected 08/02/2027	€6.59 €5.50 €5.25 €4.95 View €4.65 €4.38 €4.33	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-SL8B01 Amphenol LTW 1: €9.37 167In Stock	Mfr. Part No. M12B-05BFFM-SL8B01 Mouser Part No 523-M12B05BFFMSL8B01	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	167In Stock	€9.37 €8.13 €8.12 €8.00 View €7.79 €6.31 €5.91 €5.50 €5.42	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: €15.07 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	€15.07 €12.82 €12.68 €11.46 View €10.81 €10.56 €10.23 €10.17 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, Screw-in, Field Installable, F4.0 - F8.0mm, IP67 Mated M12B-05BMMB-SL7001 Amphenol LTW 1: €8.89 88In Stock	Mfr. Part No. M12B-05BMMB-SL7001 Mouser Part No 523-M12B05BMMBSL7001	Amphenol LTW	Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Male Connector, Male 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	88In Stock	€8.89 €7.55 €6.98 €6.73 View €6.27 €5.91 €5.62 €5.28 €5.22	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 1000mm, IP68 / IP69K M12B05ML-12BFL-SD001 Amphenol LTW 1: €13.85 25In Stock	Mfr. Part No. M12B05ML-12BFL-SD001 Mouser Part No 523-M12B05ML12BFLSD1	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 1000mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	25In Stock	€13.85 €11.77 €11.03 €10.51 View €10.00 €9.31 €8.69 €8.33	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 500mm, IP68 / IP69K M12B05ML-12BFL-SBA05 Amphenol LTW 1: €11.46 50In Stock	Mfr. Part No. M12B05ML-12BFL-SBA05 Mouser Part No 523-M12B05MLBFLSBA05	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 500mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	50In Stock	€11.46 €10.91 €10.52 €9.03 €8.92	Min.: 1 Mult.: 1