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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 (SGD) Filter the results in the table by unit price based on your quantity.	Qty.
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: $13.84 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	$13.84 $11.75 $10.88 $10.49 View $10.00 $9.28 $8.70 $8.16 $8.06	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: $14.27 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	$14.27 $12.12 $11.22 $10.83 View $10.31 $9.59 $8.99 $8.28 Quote	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: $14.47 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	$14.47 $12.55 $11.29 $10.76 View $10.13 $9.37 $8.81 $8.24 $8.16	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: $9.78 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	$9.78 $8.30 $6.91 $6.58 View $6.27 $5.98	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: $10.61 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	$10.61 $8.62 $8.08 $7.62 View $7.09 $6.58 $6.02 $5.56 $5.45	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: $17.18 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	$17.18 $14.59 $13.67 $13.02 View $12.40 $11.63 $11.07 $10.54	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: $23.24 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	$23.24 $19.75 $18.51 $17.63 View $16.20 $15.42 $14.88 $14.44 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: $23.19 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	$23.19 $20.22 $18.96 $18.05 View $16.54 $15.90 $15.12 $14.72 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: $50.36 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	$50.36 $43.68 $41.15 $36.50 View $34.95 $33.82 Quote	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: $12.05 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	$12.05 $10.23 $9.47 $9.14 View $8.69 $8.15 $7.77 $7.40 $7.33	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: $12.46 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	$12.46 $10.58 $9.79 $9.44 View $8.95 $8.26 $7.75 $7.24 $7.15	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: $10.66 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	$10.66 $9.06 $8.38 $8.08 View $7.70 $7.22 $6.80 $6.38 $6.22	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: $11.03 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	$11.03 $9.37 $8.66 $8.36 View $7.96 $7.44 $6.92 $6.31 $6.15	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: $12.54 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	$12.54 $10.65 $9.57 $9.11 View $8.85 $8.24 $7.74 $7.25 $7.18	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: $7.10 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	$7.10 $6.01 $5.64 $5.40 View $5.25 $4.90 $4.61 $4.49	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: $13.27 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	$13.27 $11.44 $11.38 $11.22 View $9.71 $9.11 $8.68 $8.26	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: $12.82 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	$12.82 $10.77 $9.83 $9.57 View $8.94 $8.21 $7.59 $6.98 $6.88	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: $14.82 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	$14.82 $12.85 $12.84 $12.65 View $12.32 $9.98 $9.34 $8.69 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: $14.06 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	$14.06 $11.94 $11.04 $10.65 View $9.91 $9.34 $8.88 $8.35 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: $21.58 100In Stock 210Expected 8/1/2027	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 8/1/2027	$21.58 $17.91 $17.27 $16.17 View $14.39 $14.13 $14.05 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 2000mm, IP68 / IP69K M12B05ML-12BFL-SB002 Amphenol LTW 1: $26.07 10In Stock	Mfr. Part No. M12B05ML-12BFL-SB002 Mouser Part No 523-M12B05ML12BFLSB2	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 2000mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	10In Stock	$26.07 $22.15 $20.51 $19.77 View $18.84 $17.65 $16.58 $15.83 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 1000mm, IP68 / IP69K M12B05ML-12BFL-SD001 Amphenol LTW 1: $21.91 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	$21.91 $18.62 $17.45 $16.62 View $15.82 $14.73 $13.75 $13.08 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 500mm, IP68 / IP69K M12B05ML-12BFL-SBA05 Amphenol LTW 1: $18.12 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	$18.12 $17.26 $16.63 $14.28 $14.10	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Hexagonal, PG9, Screw Thread, Solder, Receptacle, Front Fastened, Panel Thickness 4.5, IP68 / IP69K M12B-05PFFS-SF8001 Amphenol LTW 1: $11.86 19In Stock	Mfr. Part No. M12B-05PFFS-SF8001 Mouser Part No 523-M12B05PFFSSF8001	Amphenol LTW	Sensor Cables / Actuator Cables M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female 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	19In Stock	$11.86 $10.06 $9.29 $8.99 View $8.50 $7.89 $7.36 $6.80 $6.72	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, PCB 180 , Receptacle, Front Fastened, Panel Thickness 4.5, IP68 / IP69K M12B-05PMMP-SF8001 Amphenol LTW 1: $10.85 10In Stock	Mfr. Part No. M12B-05PMMP-SF8001 Mouser Part No 523-M12B05PMMPSF8001	Amphenol LTW	Sensor Cables / Actuator Cables 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	10In Stock	$10.85 $9.32 $8.35 $7.82 View $7.30 $6.77 $6.30 $5.79 $5.70	Min.: 1 Mult.: 1