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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 (CAD) 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, Male Connector, Male Contact, Straight-to-Straight, Screw Thread, Overmolded Double Ended, Length 5000mm, IP68 / IP69K MSBS05ML-SBSFL-SB005 Amphenol LTW 1: $76.67 8In Stock	Mfr. Part # MSBS05ML-SBSFL-SB005 Mouser Part # 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	$76.67 $64.94 $58.00 $56.38 View $54.37 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: $16.50 1In Stock	Mfr. Part # M12B-05PFFC-SH8C50 Mouser Part # 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	$16.50 $14.86 $14.00 $13.64 View $13.29 $11.85 $11.13 $9.36	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: $47.64 8In Stock	Mfr. Part # MSBS05FL-SBSFL-SD002 Mouser Part # 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	$47.64 $41.08 $35.58 $34.56 View $33.93 $32.96 Quote	Min.: 1 Mult.: 1
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: $14.99 9In Stock	Mfr. Part # MSBP-05BFFM-SR8A01 Mouser Part # 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	$14.99 $12.27 $11.45 $11.32 View $10.68 $10.04 $9.48 $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-to-Straight, Screw Thread, Overmolded Double Ended, Length 3000mm, IP68 / IP69K M12B05ML-12BFL-SD003 Amphenol LTW 1: $29.29 1In Stock	Mfr. Part # M12B05ML-12BFL-SD003 Mouser Part # 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	$29.29 $23.96 $23.72 $20.65 View $20.09 $19.48 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 1000mm, IP68 / IP69K M12B-05PFFC-SH8CA0 Amphenol LTW 1: $16.08 3In Stock	Mfr. Part # M12B-05PFFC-SH8CA0 Mouser Part # 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	$16.08 $15.15 $14.57 $14.20 View $13.55 $12.80 $12.18 $11.72 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-12BML-SD003 Amphenol LTW 1: $29.28 6In Stock	Mfr. Part # M12B05ML-12BML-SD003 Mouser Part # 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	$29.28 $23.54 $21.38 $20.32 View $19.63 $18.91 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: $108.24 2In Stock	Mfr. Part # MSBS05FL-SBSFL-SB010 Mouser Part # 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	$108.24 $96.81 $83.79 $79.21 View $79.19 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: $53.12 5In Stock	Mfr. Part # MSBS05FL-SBSFL-SD003 Mouser Part # 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	$53.12 $45.40 $39.59 $38.46 View $37.74 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: $64.53 7In Stock	Mfr. Part # MSBS05FL-SBSFL-SD005 Mouser Part # 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	$64.53 $56.16 $45.96 $44.61 View $42.52 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: $23.23 9In Stock	Mfr. Part # MSBS-05BMMA-SL7001 Mouser Part # 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	$23.23 $19.73 $18.72 $16.21 View $15.42 $14.69 $14.27 $13.77 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 10000mm, IP68 / IP69K M12B-05BFFM-SL8D10 Amphenol LTW 1: $38.52 3In Stock 20Expected 2027-01-08	Mfr. Part # M12B-05BFFM-SL8D10 Mouser Part # 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 2027-01-08	$38.52 $33.44 $32.76 $28.14 View $27.62 $27.09 $26.37 Quote	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: $24.02 9In Stock	Mfr. Part # MSBS-05BFFA-SL7001 Mouser Part # 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	$24.02 $20.40 $19.35 $16.76 View $15.94 $15.19 $14.75 $14.23 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: $24.93 5In Stock	Mfr. Part # M12B05ML-12BFR-SB001 Mouser Part # 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	$24.93 $20.33 $18.29 $17.38 View $16.79 $16.19 $15.55 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: $32.47 8In Stock	Mfr. Part # M12B-05BFFM-SL8B05 Mouser Part # 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	$32.47 $27.59 $26.12 $22.59 View $21.82 $21.11 $20.45 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: $30.41 30In Stock	Mfr. Part # MSBS-02BMMM-SL8M02 Mouser Part # 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	$30.41 $28.20 $26.70 $24.60 View $21.82 $21.14 $20.33 Quote	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: $13.23 8In Stock	Mfr. Part # M12B-03BFFA-SL8001 Mouser Part # 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	$13.23 $11.25 $10.41 $10.04 View $9.56 $8.96 $8.52 $8.12 $8.02	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: $13.10 4In Stock	Mfr. Part # M12B-03BMMA-SL8001 Mouser Part # 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	$13.10 $10.90 $10.09 $9.73 View $9.26 $8.68 $8.27 $7.70 $7.69	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: $17.93 9In Stock	Mfr. Part # M12B-05BFFB-SL7001 Mouser Part # 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	$17.93 $17.24 $15.61 $15.21 View $14.14 $13.03 $12.17 $11.16 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: $14.76 2In Stock	Mfr. Part # M12B-05BFFM-SL8D01 Mouser Part # 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	$14.76 $12.54 $11.61 $11.19 View $10.66 $9.99 $9.42 $8.77 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, IP68 Mated M12B-05BMMA-SL8001 Amphenol LTW 1: $13.65 6In Stock	Mfr. Part # M12B-05BMMA-SL8001 Mouser Part # 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	$13.65 $11.59 $10.73 $10.34 View $9.82 $9.06 $8.50 $7.95 $7.86	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: $17.54 9In Stock	Mfr. Part # M12B-05BMMM-PL8D02 Mouser Part # 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	$17.54 $15.21 $14.26 $13.58 View $12.93 $12.11 $11.53 $10.99	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: $16.14 8In Stock	Mfr. Part # M12B05FL-12BMR-SDA05 Mouser Part # 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	$16.14 $15.19 $13.90 $13.29 View $12.84 $12.25 $11.69 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 500mm, IP68 / IP69K M12B05ML-12BFR-SDA05 Amphenol LTW 1: $22.08 4In Stock	Mfr. Part # M12B05ML-12BFR-SDA05 Mouser Part # 523-M12B05MLBFRSDA05	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 500mm, IP68 / IP69K Learn More about Amphenol LTW amphenol m12 b code connectors	Datasheet	4In Stock	$22.08 $16.17 $15.16 $14.44 View $13.75 $12.89 $12.27 $11.69	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-12BML-SDA05 Amphenol LTW 1: $18.32 10In Stock	Mfr. Part # M12B05ML-12BML-SDA05 Mouser Part # 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	$18.32 $14.59 $13.18 $12.47 View $12.02 $11.46 $10.99 Quote	Min.: 1 Mult.: 1