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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 (USD) 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: $69.21 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	$69.21 $58.63 $52.36 $50.90 View $49.09 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: $14.90 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	$14.90 $13.42 $12.64 $12.31 View $12.00 $10.70 $10.05 $8.45	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: $26.44 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	$26.44 $21.63 $21.41 $18.64 View $18.14 $17.59 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: $26.43 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	$26.43 $21.26 $19.31 $18.34 View $17.72 $17.07 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: $13.53 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	$13.53 $11.08 $10.34 $10.22 View $9.65 $9.06 $8.55 $8.02 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: $58.25 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	$58.25 $50.70 $41.50 $40.27 View $38.39 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: $97.72 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	$97.72 $87.40 $75.65 $71.51 View $71.49 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: $47.96 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	$47.96 $40.99 $35.74 $34.72 View $34.07 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: $22.50 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	$22.50 $18.36 $16.51 $15.69 View $15.16 $14.61 $14.04 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: $29.32 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	$29.32 $24.91 $23.58 $20.40 View $19.70 $19.06 $18.46 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: $20.97 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	$20.97 $17.81 $16.90 $14.64 View $13.92 $13.26 $12.88 $12.43 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: $21.68 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	$21.68 $18.42 $17.47 $15.13 View $14.39 $13.72 $13.31 $12.84 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: $43.00 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	$43.00 $37.09 $32.12 $31.20 View $30.63 $29.76 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: $34.78 3In Stock 20Expected 1/8/2027	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 1/8/2027	$34.78 $30.19 $29.58 $25.40 View $24.93 $24.45 $23.80 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: $28.99 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	$28.99 $28.98 $24.10 $22.49 View $20.15 $19.55 $18.88 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: $11.95 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	$11.95 $10.15 $9.40 $9.06 View $8.63 $8.09 $7.70 $7.33 $7.24	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: $11.83 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	$11.83 $9.84 $9.11 $8.79 View $8.36 $7.84 $7.46 $6.96 $6.94	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: $16.19 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	$16.19 $15.56 $14.09 $13.73 View $12.77 $11.77 $10.99 $10.08 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: $13.33 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	$13.33 $11.32 $10.48 $10.10 View $9.62 $9.02 $8.50 $7.92 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: $12.32 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	$12.32 $10.47 $9.69 $9.33 View $8.87 $8.18 $7.67 $7.18 $7.10	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: $15.83 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	$15.83 $13.73 $12.87 $12.26 View $11.67 $10.93 $10.41 $9.92	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: $14.57 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	$14.57 $13.72 $12.55 $12.00 View $11.60 $11.06 $10.56 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: $19.93 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	$19.93 $14.60 $13.69 $13.04 View $12.42 $11.64 $11.08 $10.56	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: $16.54 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	$16.54 $13.17 $11.90 $11.26 View $10.86 $10.35 $9.92 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 150mm, IP68 / IP69K M12B-05PFFC-SF8B15 Amphenol LTW 1: $13.23 6In Stock	Mfr. Part # M12B-05PFFC-SF8B15 Mouser Part # 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	$13.23 $11.23 $10.40 $10.02 View $9.56 $8.87 $8.32 $7.80 $7.71	Min.: 1 Mult.: 1