Circular Metric Connectors

.hide-partial { max-height: none; } .show-more { display: none; }

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.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 44

Applied Filters:

Number of Contacts

Thread Size

Termination Style

Coding

Current Rating

Voltage Rating

IP Rating

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

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: 60,72 kr.
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

Datasheet

8In Stock

60,72 kr.

54,68 kr.

51,55 kr.

50,21 kr.

View

Min.: 1
Mult.: 1

Circular Metric Connectors

B Coded

4 A

250 V

IP68

M12 B Code

Bulk

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: 57,52 kr.
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

Datasheet

4In Stock

57,52 kr.

51,70 kr.

48,79 kr.

47,45 kr.

View

Min.: 1
Mult.: 1

Circular Metric Connectors

B Coded

4 A

250 V

IP68

M12 B Code

Bulk

Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 04 pins, Male Connector, Male Contact, Straight, Screw Thread, Solder, Field Installable, F4.5 - F6.5mm, IP68 Mated

M12B-04BMMA-SL8001
Amphenol LTW
1: 60,20 kr.
1In Stock

Mfr. Part No.
M12B-04BMMA-SL8001

Mouser Part No
523-M12B04BMMASL8001

Amphenol LTW

Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 04 pins, Male Connector, Male Contact, Straight, Screw Thread, Solder, Field Installable, F4.5 - F6.5mm, IP68 Mated

Learn More

Datasheet

1In Stock

60,20 kr.

54,16 kr.

51,03 kr.

49,76 kr.

View

Min.: 1
Mult.: 1

Circular Metric Connectors

B Coded

M12 B Code

Bulk

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: 61,32 kr.
10In 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

Datasheet

10In Stock

61,32 kr.

55,20 kr.

52,00 kr.

50,65 kr.

View

Min.: 1
Mult.: 1

Circular Metric Connectors

B Coded

M12 B Code

Bulk

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: 67,44 kr.
9In Stock
20Expected 16/04/2026

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

Datasheet

9In Stock

20Expected 16/04/2026

67,44 kr.

60,72 kr.

57,22 kr.

55,73 kr.

View

Min.: 1
Mult.: 1

Circular Metric Connectors

M12 B Code

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: 58,19 kr.
14In Stock

Mfr. Part No.
MSBS-05PFFP-SF8001

Mouser Part No
523-MSBS05PFFPSF8001

Amphenol LTW

Learn More

Datasheet

14In Stock

58,19 kr.

52,44 kr.

49,31 kr.

48,12 kr.

View

Min.: 1
Mult.: 1

Circular Metric Connectors

M12 B Code

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: 59,08 kr.
9In Stock

Mfr. Part No.
MSBS-05PFFP-SF8002

Mouser Part No
523-MSBS05PFFPSF8002

Amphenol LTW

Learn More

Datasheet

9In Stock

59,08 kr.

53,19 kr.

50,13 kr.

48,79 kr.

View

Min.: 1
Mult.: 1

Circular Metric Connectors

M12 B Code

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: 52,00 kr.
1In Stock

Mfr. Part No.
MSBS-05PMMP-SF8001

Mouser Part No
523-MSBS05PMMPSF8001

Amphenol LTW

Learn More

Datasheet

1In Stock

52,00 kr.

47,07 kr.

44,46 kr.

43,34 kr.

View

Min.: 1
Mult.: 1

Circular Metric Connectors

M12 B Code

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: 54,01 kr.
10In Stock

Mfr. Part No.
MSBS-05PMMP-SF8002

Mouser Part No
523-MSBS05PMMPSF8002

Amphenol LTW

Learn More

Datasheet

10In Stock

54,01 kr.

48,86 kr.

46,18 kr.

45,06 kr.

View

Min.: 1
Mult.: 1

Circular Metric Connectors

M12 B Code

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: 65,95 kr.
50Expected 17/03/2026

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

Datasheet

50Expected 17/03/2026

65,95 kr.

56,02 kr.

54,53 kr.

53,12 kr.

View

Min.: 1
Mult.: 1

Circular Metric Connectors

B Coded

4 A

250 V

IP68

M12 B Code

Bulk

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: 71,32 kr.
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

Datasheet

9In Stock

71,32 kr.

64,23 kr.

60,50 kr.

58,93 kr.

View

Min.: 1
Mult.: 1

Circular Metric Connectors

M12 B Code

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: 103,32 kr.
9Expected 17/03/2026

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

Datasheet

9Expected 17/03/2026

103,32 kr.

91,53 kr.

88,03 kr.

84,52 kr.

View

Min.: 1
Mult.: 1

Circular Metric Connectors

M12 B Code

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: 99,89 kr.
9Expected 17/03/2026

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

Datasheet

9Expected 17/03/2026

99,89 kr.

88,55 kr.

85,12 kr.

81,76 kr.

View

Min.: 1
Mult.: 1

Circular Metric Connectors

M12 B Code

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: 59,53 kr.
10Expected 31/03/2026

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

Datasheet

10Expected 31/03/2026

59,53 kr.

53,64 kr.

50,50 kr.

49,24 kr.

View

Min.: 1
Mult.: 1

Circular Metric Connectors

5 Contact

M12

Through Hole

B Coded

4 A

60 V

IP67

M12 B Code

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: 41,33 kr.
10Expected 31/03/2026

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

Datasheet

10Expected 31/03/2026

41,33 kr.

37,37 kr.

35,29 kr.

34,47 kr.

View

Min.: 1
Mult.: 1

Circular Metric Connectors

B Coded

4 A

60 V

M12 B Code

Circular Metric Connectors M12 Circular Metric Connector, B Code, Plastic, 4A, 05 pins, Female Connector, Female Contact, Straight, Screw Thread, Solder, Field Installable, F4.5 - F6.5mm, IP68 Mated

MSBP-05BFFA-SL8001
Amphenol LTW
1: 64,01 kr.
10Expected 08/04/2026

Mfr. Part No.
MSBP-05BFFA-SL8001

Mouser Part No
523-SBP05BFFASL8001

Amphenol LTW

Circular Metric Connectors M12 Circular Metric Connector, B Code, Plastic, 4A, 05 pins, Female Connector, Female Contact, Straight, Screw Thread, Solder, Field Installable, F4.5 - F6.5mm, IP68 Mated

Learn More

Datasheet

10Expected 08/04/2026

64,01 kr.

57,59 kr.

54,31 kr.

52,97 kr.

View

Min.: 1
Mult.: 1

Circular Metric Connectors

5 Contact

M12

Solder

B Coded

4 A

60 V

IP68

M12 B Code

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, IP68 Mated

M12B-05BFFA-SL8001
Amphenol LTW
1: 68,04 kr.
Non-Stocked Lead-Time 5 Weeks

Mfr. Part No.
M12B-05BFFA-SL8001

Mouser Part No
523-M12B05BFFASL8001

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, IP68 Mated

Learn More

Datasheet

Non-Stocked Lead-Time 5 Weeks

68,04 kr.

61,25 kr.

57,67 kr.

56,17 kr.

View

Min.: 1
Mult.: 1

Circular Metric Connectors

B Coded

4 A

60 V

IP68

M12 B Code

Bulk

Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Right Angle, Screw Thread, Solder, Field Installable, F4.5 - F6.5mm, IP67 Mated

M12B-05BFFA-SR7001
Amphenol LTW
1: 65,05 kr.
Non-Stocked Lead-Time 5 Weeks

Mfr. Part No.
M12B-05BFFA-SR7001

Mouser Part No
523-M12B05BFFASR7001

Amphenol LTW

Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Right Angle, Screw Thread, Solder, Field Installable, F4.5 - F6.5mm, IP67 Mated

Learn More

Datasheet

Non-Stocked Lead-Time 5 Weeks

65,05 kr.

58,56 kr.

55,20 kr.

53,79 kr.

View

Min.: 1
Mult.: 1

Circular Metric Connectors

M12 B Code

Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Female Connector, Female Contact, Right Angle, Screw Thread, Screw-in, Field Installable, F4.0 - F8.0mm, IP67 Mated

M12B-05BFFB-SR7001
Amphenol LTW
1: 72,06 kr.
Non-Stocked Lead-Time 5 Weeks

Mfr. Part No.
M12B-05BFFB-SR7001

Mouser Part No
523-M12B05BFFBSR7001

Amphenol LTW

Learn More

Datasheet

Non-Stocked Lead-Time 5 Weeks

72,06 kr.

64,83 kr.

61,17 kr.

59,53 kr.

View

Min.: 1
Mult.: 1

Circular Metric Connectors

M12 B Code

Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Male Connector, Male Contact, Right Angle, Screw Thread, Solder, Field Installable, F4.5 - F6.5mm, IP67 Mated

M12B-05BMMA-SR7001
Amphenol LTW
1: 61,77 kr.
Non-Stocked Lead-Time 5 Weeks

Mfr. Part No.
M12B-05BMMA-SR7001

Mouser Part No
523-M12B05BMMASR7001

Amphenol LTW

Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Male Connector, Male Contact, Right Angle, Screw Thread, Solder, Field Installable, F4.5 - F6.5mm, IP67 Mated

Learn More

Datasheet

Non-Stocked Lead-Time 5 Weeks

61,77 kr.

55,65 kr.

52,44 kr.

51,10 kr.

View

Min.: 1
Mult.: 1

Circular Metric Connectors

M12 B Code

Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Male Connector, Male Contact, Right Angle, Screw Thread, Screw-in, Field Installable, F4.0 - F8.0mm, IP67 Mated

M12B-05BMMB-SR7001
Amphenol LTW
1: 68,33 kr.
Non-Stocked Lead-Time 5 Weeks

Mfr. Part No.
M12B-05BMMB-SR7001

Mouser Part No
523-M12B05BMMBSR7001

Amphenol LTW

Circular Metric Connectors M12 Circular Metric Connector, B Code, Metal, 4A, 05 pins, Male Connector, Male Contact, Right Angle, Screw Thread, Screw-in, Field Installable, F4.0 - F8.0mm, IP67 Mated

Learn More

Datasheet

Non-Stocked Lead-Time 5 Weeks

68,33 kr.

61,55 kr.

57,96 kr.

56,47 kr.

View

Min.: 1
Mult.: 1

Circular Metric Connectors

M12 B Code

Circular Metric Connectors M12 Circular Metric Connector, B Code, Plastic, 4A, 03 pins, Female Connector, Female Contact, Straight, Screw Thread, Solder, Field Installable, F4.5 - F6.5mm, IP68 Mated

MSBP-03BFFA-SL8001
Amphenol LTW
1: 56,70 kr.
Non-Stocked Lead-Time 5 Weeks

Mfr. Part No.
MSBP-03BFFA-SL8001

Mouser Part No
523-MSBP03BFFASL8001

Amphenol LTW

Circular Metric Connectors M12 Circular Metric Connector, B Code, Plastic, 4A, 03 pins, Female Connector, Female Contact, Straight, Screw Thread, Solder, Field Installable, F4.5 - F6.5mm, IP68 Mated

Learn More

Datasheet

Non-Stocked Lead-Time 5 Weeks

56,70 kr.

51,10 kr.

48,12 kr.

46,92 kr.

View

Min.: 1
Mult.: 1

Circular Metric Connectors

M12 B Code

Circular Metric Connectors M12 Circular Metric Connector, B Code, Plastic, 4A, 03 pins, Male Connector, Male Contact, Straight, Screw Thread, Solder, Field Installable, F4.5 - F6.5mm, IP68 Mated

MSBP-03BMMA-SL8001
Amphenol LTW
1: 54,01 kr.
Non-Stocked Lead-Time 5 Weeks

Mfr. Part No.
MSBP-03BMMA-SL8001

Mouser Part No
523-MSBP03BMMASL8001

Amphenol LTW

Circular Metric Connectors M12 Circular Metric Connector, B Code, Plastic, 4A, 03 pins, Male Connector, Male Contact, Straight, Screw Thread, Solder, Field Installable, F4.5 - F6.5mm, IP68 Mated

Learn More

Datasheet

Non-Stocked Lead-Time 5 Weeks

54,01 kr.

48,64 kr.

45,80 kr.

44,69 kr.

View

Min.: 1
Mult.: 1

Circular Metric Connectors

M12 B Code

Circular Metric Connectors M12 Circular Metric Connector, B Code, Plastic, 4A, 04 pins, Female Connector, Female Contact, Straight, Screw Thread, Solder, Field Installable, F4.5 - F6.5mm, IP68 Mated

MSBP-04BFFA-SL8001
Amphenol LTW
1: 60,43 kr.
Non-Stocked Lead-Time 5 Weeks

Mfr. Part No.
MSBP-04BFFA-SL8001

Mouser Part No
523-MSBP04BFFASL8001

Amphenol LTW

Circular Metric Connectors M12 Circular Metric Connector, B Code, Plastic, 4A, 04 pins, Female Connector, Female Contact, Straight, Screw Thread, Solder, Field Installable, F4.5 - F6.5mm, IP68 Mated

Learn More

Datasheet

Non-Stocked Lead-Time 5 Weeks

60,43 kr.

54,38 kr.

51,25 kr.

49,91 kr.

View

Min.: 1
Mult.: 1

Circular Metric Connectors

M12 B Code

Circular Metric Connectors M12 Circular Metric Connector, B Code, Plastic, 4A, 04 pins, Male Connector, Male Contact, Straight, Screw Thread, Solder, Field Installable, F4.5 - F6.5mm, IP68 Mated

MSBP-04BMMA-SL8001
Amphenol LTW
1: 56,62 kr.
Non-Stocked Lead-Time 5 Weeks

Mfr. Part No.
MSBP-04BMMA-SL8001

Mouser Part No
523-MSBP04BMMASL8001

Amphenol LTW

Circular Metric Connectors M12 Circular Metric Connector, B Code, Plastic, 4A, 04 pins, Male Connector, Male Contact, Straight, Screw Thread, Solder, Field Installable, F4.5 - F6.5mm, IP68 Mated

Learn More

Datasheet

Non-Stocked Lead-Time 5 Weeks

56,62 kr.

50,95 kr.

47,97 kr.

46,77 kr.

View

Min.: 1
Mult.: 1

Circular Metric Connectors

4 Contact

M12

Solder

B Coded

4 A

250 V

IP68

M12 B Code

M12 B-Code Circular Metric Connectors

Customer Service Office

Company

Resources

Support