Circular Metric Connectors

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M23 Standard Threaded & Checkmate™ Connectors

Amphenol Sine Systems M23 Standard Threaded and Checkmate™ Connectors are high-performance, cost-effective connectors designed with Checkmate quick-locking technology. These connectors feature superior environmental seal retention and are compatible with existing industry-wide standard products. The M23 standard connectors are available in 6, 8, 9, 12, 16, 17, and 19 positions. The M23 Checkmate quick-locking connectors feature the Metrifit™ strain relief system that provides 360° EMI/RFI shielding with advanced sealing capability (IP67). The Amphenol M23 Checkmate connectors have distinctive alignment arrows and quick locking reliability.

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Part #

Circular Metric Connectors 9POS RCPTCL 90 ROT STD FLANGE 25.7X25.7

MB5RJN0901
Amphenol SINE Systems
1: $33.46
13In Stock

Mfr. Part No.
MB5RJN0901

Mouser Part No
654-MB5RJN0901

Amphenol SINE Systems

Circular Metric Connectors 9POS RCPTCL 90 ROT STD FLANGE 25.7X25.7

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Datasheet

13In Stock

$33.46

$32.47

$29.66

$21.71

View

Min.: 1
Mult.: 1

Circular Metric Connectors

4 Signal, 4 Power + PE

M23

Crimp

10 A, 30 A

250 V, 630 V

IP67

M23

Circular Metric Connectors Cord Grip

MB6CG-S3
Amphenol SINE Systems
1: $12.79
143In Stock

Mfr. Part No.
MB6CG-S3

Mouser Part No
654-MB6CG-S3

Amphenol SINE Systems

Circular Metric Connectors Cord Grip

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Datasheet

143In Stock

$12.79

$11.63

$10.90

$10.38

View

Min.: 1
Mult.: 1

Circular Metric Connectors

M23

IP67

M23

Circular Metric Connectors 6POS RCPTCL 90 ROT LG FLANGE 28.0X28.0

MB7RJN0602
Amphenol SINE Systems
1: $29.66
50In Stock

Mfr. Part No.
MB7RJN0602

Mouser Part No
654-MB7RJN0602

Amphenol SINE Systems

Circular Metric Connectors 6POS RCPTCL 90 ROT LG FLANGE 28.0X28.0

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Datasheet

50In Stock

$29.66

$25.21

$23.63

$22.51

View

Min.: 1
Mult.: 1

Circular Metric Connectors

5 Signal + PE

M23

Crimp

28 A

630 V

IP67

M23

Circular Metric Connectors 8POS RCPTCL 90 ROT STD FLANGE 25.7X25.7

MB7RJN0801
Amphenol SINE Systems
1: $25.91
37In Stock

Mfr. Part No.
MB7RJN0801

Mouser Part No
654-MB7RJN0801

Amphenol SINE Systems

Circular Metric Connectors 8POS RCPTCL 90 ROT STD FLANGE 25.7X25.7

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Datasheet

37In Stock

$25.91

$23.13

$22.69

$22.68

$19.85

Min.: 1
Mult.: 1

Circular Metric Connectors

4 Signal, 3 Power + PE

M23

Crimp

10 A, 30 A

250 V, 630 V

IP67

M23

Circular Metric Connectors PLUG,STR, 12P P-TYPE, CHECKMATE

MA5CAP1200-S1
Amphenol SINE Systems
1: $24.97
1In Stock

Mfr. Part No.
MA5CAP1200-S1

Mouser Part No
654-MA5CAP1200-S1

Amphenol SINE Systems

Circular Metric Connectors PLUG,STR, 12P P-TYPE, CHECKMATE

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Datasheet

1In Stock

$24.97

$20.59

$19.52

$18.59

View

Min.: 1
Mult.: 1

Circular Metric Connectors

12 Contact

M23

10 A

160 VAC

IP67

M23

Circular Metric Connectors PLUG,STR, 16P P-TYPE, CHECKMATE

MA5CAP1600-S1
Amphenol SINE Systems
1: $23.56
19In Stock

Mfr. Part No.
MA5CAP1600-S1

Mouser Part No
654-MA5CAP1600-S1

Amphenol SINE Systems

Circular Metric Connectors PLUG,STR, 16P P-TYPE, CHECKMATE

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Datasheet

19In Stock

$23.56

$20.03

$18.77

$17.88

View

Min.: 1
Mult.: 1

Circular Metric Connectors

16 Contact

M23

Crimp

9 A

125 VAC

IP67

M23

Circular Metric Connectors PLUG,STR,12P,E TYPE

MA7CAE1200-S3
Amphenol SINE Systems
1: $22.53
39In Stock

Mfr. Part No.
MA7CAE1200-S3

Mouser Part No
654-MA7CAE1200-S3

Amphenol SINE Systems

Circular Metric Connectors PLUG,STR,12P,E TYPE

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Datasheet

39In Stock

$22.53

$19.15

$17.95

$15.95

View

Min.: 1
Mult.: 1

Circular Metric Connectors

12 Contact

M23

Crimp

10 A

160 V

IP67

M23

Circular Metric Connectors PLUG,STR,16P,P TYPE

MA7CAP1600-S1
Amphenol SINE Systems
1: $19.01
16In Stock

Mfr. Part No.
MA7CAP1600-S1

Mouser Part No
654-MA7CAP1600-S1

Amphenol SINE Systems

Circular Metric Connectors PLUG,STR,16P,P TYPE

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Datasheet

16In Stock

$19.01

$16.85

$16.09

$15.70

View

Min.: 1
Mult.: 1

Circular Metric Connectors

16 Contact

M23

Crimp

9 A

125 V

IP67

M23

Circular Metric Connectors PLUG,STR,17P,P TYPE

MA7CAP1700-S1
Amphenol SINE Systems
1: $22.01
3In Stock

Mfr. Part No.
MA7CAP1700-S1

Mouser Part No
654-MA7CAP1700-S1

Amphenol SINE Systems

Circular Metric Connectors PLUG,STR,17P,P TYPE

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Datasheet

3In Stock

$22.01

$18.52

$17.54

$15.89

View

Min.: 1
Mult.: 1

Circular Metric Connectors

17 Contact

M23

Crimp

9 A

125 V

IP67

M23

Circular Metric Connectors 12POS RCPTCL 90 ROT STD FLANGE 25.7X25.7

MA7RAE1201
Amphenol SINE Systems
1: $27.64
11In Stock

Mfr. Part No.
MA7RAE1201

Mouser Part No
654-MA7RAE1201

Amphenol SINE Systems

Circular Metric Connectors 12POS RCPTCL 90 ROT STD FLANGE 25.7X25.7

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Datasheet

11In Stock

$27.64

$23.50

$22.03

$20.98

View

Min.: 1
Mult.: 1

Circular Metric Connectors

12 Contact

M23

Crimp

10 A

160 V

IP67

M23

Circular Metric Connectors PLUG E TYPE CW F 12POS STRT CHECKMATE

MA2CAE1200
Amphenol SINE Systems
1: $20.19
176Expected 15/06/2026

Mfr. Part No.
MA2CAE1200

Mouser Part No
654-MA2CAE1200

Amphenol SINE Systems

Circular Metric Connectors PLUG E TYPE CW F 12POS STRT CHECKMATE

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Datasheet

176Expected 15/06/2026

$20.19

$18.50

$14.45

$13.30

Quote

Min.: 1
Mult.: 1

Circular Metric Connectors

12 Contact

M23

Crimp

10 A

160 V

IP67

M23

Circular Metric Connectors RECEPTACLE,STR,12POS CHECKMATE

MA2LAP1200
Amphenol SINE Systems
1: $8.87
200Expected 26/05/2026

Mfr. Part No.
MA2LAP1200

Mouser Part No
654-MA2LAP1200

Amphenol SINE Systems

Circular Metric Connectors RECEPTACLE,STR,12POS CHECKMATE

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Datasheet

200Expected 26/05/2026

$8.87

$8.23

$7.88

$7.62

View

Min.: 1
Mult.: 1

Circular Metric Connectors

12 Contact

M23

Crimp

10 A

160 V

IP67

M23

Circular Metric Connectors PLUG F 6POS HC CRIMP SHORT HOUSING CM

MB2CKN0600
Amphenol SINE Systems
1: $23.04
199Expected 17/06/2026

Mfr. Part No.
MB2CKN0600

Mouser Part No
654-MB2CKN0600

Amphenol SINE Systems

Circular Metric Connectors PLUG F 6POS HC CRIMP SHORT HOUSING CM

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Datasheet

199Expected 17/06/2026

$23.04

$19.58

$18.36

$17.48

View

Min.: 1
Mult.: 1

Circular Metric Connectors

6 Contact

M23

Crimp

28 A

630 VAC

IP67

M23

Circular Metric Connectors M23 Circular Metric Connector, Metal, 28A, 06 pins, Female Connector, Male Contact, Straight, Screw Thread, Crimp, Field Installable, F8.5 - F17.5mm, IP67 Mated

LJ23-06DFMC-SL7001
Amphenol LTW
1: $65.82
10Expected 01/04/2026

Mfr. Part No.
LJ23-06DFMC-SL7001

Mouser Part No
523-LJ2306DFMCSL7001

Amphenol LTW

Circular Metric Connectors M23 Circular Metric Connector, Metal, 28A, 06 pins, Female Connector, Male Contact, Straight, Screw Thread, Crimp, Field Installable, F8.5 - F17.5mm, IP67 Mated

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Datasheet

10Expected 01/04/2026

$65.82

$56.58

$53.30

$50.76

$48.34

Min.: 1
Mult.: 1

Circular Metric Connectors

M23

Circular Metric Connectors 12pos Straight Male Receptacle Kit

MA2LAE1200-KIT
Amphenol SINE Systems
1: $36.45
10Expected 09/06/2026

Mfr. Part No.
MA2LAE1200-KIT

Mouser Part No
654-MA2LAE1200-KIT

Amphenol SINE Systems

Circular Metric Connectors 12pos Straight Male Receptacle Kit

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Datasheet

10Expected 09/06/2026

$36.45

$30.90

$29.04

$27.65

View

Min.: 1
Mult.: 1

Circular Metric Connectors

12 Contact

M23

Crimp

B Coded

10 A

160 V

IP67

M23

Circular Metric Connectors 12pos Straight F Receptacle Kit

MA2LAP1200S-KIT
Amphenol SINE Systems
1: $31.83
9Expected 15/06/2026

Mfr. Part No.
MA2LAP1200S-KIT

Mouser Part No
654-MA2LAP1200S-KIT

Amphenol SINE Systems

Circular Metric Connectors 12pos Straight F Receptacle Kit

Learn More

Datasheet

9Expected 15/06/2026

$31.83

$31.82

$31.06

$29.34

View

Min.: 1
Mult.: 1

Circular Metric Connectors

12 Contact

M23

Crimp

B Coded

10 A

160 V

IP67

M23

Circular Metric Connectors 17POS 90Deg Rot RCPT Standard Flange

MA5RAE1701
Amphenol SINE Systems
1: $31.06
10Expected 20/05/2026

Mfr. Part No.
MA5RAE1701

Mouser Part No
654-MA5RAE1701

Amphenol SINE Systems

Circular Metric Connectors 17POS 90Deg Rot RCPT Standard Flange

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Datasheet

10Expected 20/05/2026

$31.06

$26.40

$24.43

$23.19

View

Min.: 1
Mult.: 1

Circular Metric Connectors

17 Contact

M23

Crimp

9 A

125 V

IP67

M23

Bulk

Circular Metric Connectors 6pos Straight Male Receptacle Kit

MB2LLN0600-KIT
Amphenol SINE Systems
1: $21.33
9Expected 17/03/2026

Mfr. Part No.
MB2LLN0600-KIT

Mouser Part No
654-MB2LLN0600-KIT

Amphenol SINE Systems

Circular Metric Connectors 6pos Straight Male Receptacle Kit

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Datasheet

9Expected 17/03/2026

$21.33

$20.25

$19.54

$18.44

View

Min.: 1
Mult.: 1

Circular Metric Connectors

6 Contact

M23

Crimp

B Coded

28 A

630 VAC

IP67

M23

Circular Metric Connectors PLUG,STRAIGHT 9(4+5)POS

MB7CKN0900-S2
Amphenol SINE Systems
100: $21.38
100Factory Stock Available

Mfr. Part No.
MB7CKN0900-S2

Mouser Part No
654-MB7CKN0900-S2

Amphenol SINE Systems

Circular Metric Connectors PLUG,STRAIGHT 9(4+5)POS

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Datasheet

100Factory Stock Available

More Info Available

$21.38

$20.06

$18.25

View

Min.: 100
Mult.: 100

Circular Metric Connectors

4 Signal, 4 Power + PE

M23

Crimp

10 A, 30 A

250 V, 630 V

IP67

M23

Circular Metric Connectors M23 Circular Metric Connector, Metal, 28A, 06 pins, Female Connector, Female Contact, Straight, Screw Thread, Crimp, Field Installable, F8.5 - F17.5mm, IP67 Mated

LJ23-06DFFC-SL7002
Amphenol LTW
1: $65.71
Non-Stocked Lead-Time 5 Weeks

Mfr. Part No.
LJ23-06DFFC-SL7002

Mouser Part No
523-LJ2306DFFCSL7002

Amphenol LTW

Circular Metric Connectors M23 Circular Metric Connector, Metal, 28A, 06 pins, Female Connector, Female Contact, Straight, Screw Thread, Crimp, Field Installable, F8.5 - F17.5mm, IP67 Mated

Learn More

Datasheet

Non-Stocked Lead-Time 5 Weeks

$65.71

$57.65

$52.69

$51.44

View

Min.: 1
Mult.: 1

Circular Metric Connectors

M23

Circular Metric Connectors M23 Circular Metric Connector, Metal, 28A, 06 pins, Male Connector, Female Contact, Hexagonal, Screw Thread, Crimp, Receptacle, Front Fastened, IP67 Unmated

LJ23-06PMFC-SF7001
Amphenol LTW
1: $55.18
Non-Stocked Lead-Time 5 Weeks

Mfr. Part No.
LJ23-06PMFC-SF7001

Mouser Part No
523-LJ2306PMFCSF7001

Amphenol LTW

Circular Metric Connectors M23 Circular Metric Connector, Metal, 28A, 06 pins, Male Connector, Female Contact, Hexagonal, Screw Thread, Crimp, Receptacle, Front Fastened, IP67 Unmated

Learn More

Datasheet

Non-Stocked Lead-Time 5 Weeks

$55.18

$47.22

$44.26

$41.88

View

Min.: 1
Mult.: 1

Circular Metric Connectors

M23

Circular Metric Connectors M23 Circular Metric Connector, Metal, 28A, 06 pins, Male Connector, Male Contact, Hexagonal, Screw Thread, Crimp, Receptacle, Front Fastened, IP67 Unmated

LJ23-06PMMC-SF7001
Amphenol LTW
1: $50.86
Non-Stocked Lead-Time 5 Weeks

Mfr. Part No.
LJ23-06PMMC-SF7001

Mouser Part No
523-LJ2306PMMCSF7001

Amphenol LTW

Circular Metric Connectors M23 Circular Metric Connector, Metal, 28A, 06 pins, Male Connector, Male Contact, Hexagonal, Screw Thread, Crimp, Receptacle, Front Fastened, IP67 Unmated

Learn More

Datasheet

Non-Stocked Lead-Time 5 Weeks

$50.86

$43.69

$40.96

$38.55

View

Min.: 1
Mult.: 1

Circular Metric Connectors

6 Contact

Crimp

IP67

M23

Circular Metric Connectors M23 Circular Metric Connector, Metal, 28A, 06 pins, Male Connector, Male Contact, Hexagonal, Screw Thread, Crimp, Receptacle, Front Fastened, IP67 Unmated

LJ23-06PMMC-SF7002
Amphenol LTW
1: $46.95
Non-Stocked Lead-Time 5 Weeks

Mfr. Part No.
LJ23-06PMMC-SF7002

Mouser Part No
523-LJ2306PMMCSF7002

Amphenol LTW

Circular Metric Connectors M23 Circular Metric Connector, Metal, 28A, 06 pins, Male Connector, Male Contact, Hexagonal, Screw Thread, Crimp, Receptacle, Front Fastened, IP67 Unmated

Learn More

Datasheet

Non-Stocked Lead-Time 5 Weeks

$46.95

$40.40

$37.95

$35.53

View

Min.: 1
Mult.: 1

Circular Metric Connectors

M23

Circular Metric Connectors 2mm Socket Contact. Wire range 12AWG

65-80041
Amphenol SINE Systems
1: $2.35
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
65-80041

Mouser Part No
523-65-80041

Amphenol SINE Systems

Circular Metric Connectors 2mm Socket Contact. Wire range 12AWG

Datasheet

Non-Stocked Lead-Time 14 Weeks

$2.35

$2.00

$1.78

$1.70

View

Min.: 1
Mult.: 1

Circular Metric Connectors

M23

Bulk

Circular Metric Connectors Straight plug, threaded coupling

MA1CAE1900
Amphenol SINE Systems
1: $16.39
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
MA1CAE1900

Mouser Part No
523-MA1CAE1900

Amphenol SINE Systems

Circular Metric Connectors Straight plug, threaded coupling

Learn More

Datasheet

Non-Stocked Lead-Time 14 Weeks

$16.39

$16.11

$15.87

$10.85

View

Min.: 1
Mult.: 1

Circular Metric Connectors

63 VDC

IP67

M23

Bulk

M23 Standard Threaded & Checkmate™ Connectors

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