GENERAL PURPOSE Other Function Circular Connectors 2,400+

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Part RoHS Manufacturer Connector Type Option Reliability Contact Gender Dielectric Withstanding Voltage (V) No. of Connectors Configuration Panel Mount Body Length Body Diameter Insulation Resistance Mixed Contacts EMI Shielded Filter Feature Body Width Termination Contact Finish Body Depth Rated Voltage MIL Conformity Coupling Type Insulator Material No. of Rows Loaded Maximum Operating Temperature (Cel) DIN Conformance Board Mounting Option Contact Design IEC Conformity Minimum Operating Temperature Empty Shell Shell Finish Plating Thickness (inch) No. of Ports Contact Material UL Flammability Code Mating Contact Finish Polarization Key Additional Features Rated Current - Signal Reference Standard Insulator Color Polarization Rotation Degrees Total No. of Contacts Backshell Type Contact Arrangement Minimum Wire Size Durability Mating Contact Row Spacing (inch) Mounting Type Environmental Characteristics Maximum Wire Size Characteristic Impedance Sub-Category Shell Material Terminal Pitch (mm) Cable Types Mating Info. Mains Connector Rating Contact Sizes Contact Quantities Termination Type Minimum Withdrawal Force (N) Manufacturer Series Contact Resistance Body or Shell Style Mounting Style Minimum Insulation Diameter Contact Style JESD-609 Code Maximum Insertion Force (N) Mounting Option-2 Terminal Length Mounting Option-1 No. of Poles Shell Size

ZRLML-2020-32P

Amphenol

CIRCULAR CONNECTOR

GENERAL PURPOSE

MALE

NO

NO

9.25 inch

THREADED

107

-55 Cel

NO

ANODIC

CSA; UL

20

SOLID

CABLE

CORROSION/MOSITURE RESISTANT

ALUMINUM ALLOY

MULTIPLE MATING PARTS AVAILABLE

SOLDER

RECEPTACLE

20

0903300012

Franz Binder &

CIRCULAR CONNECTOR

GENERAL PURPOSE

FEMALE

NO

NO

NO

THREADED

POLYAMIDE

NO

NO

NO

NOT SPECIFIED

NOT SPECIFIED

12

SOLID

CABLE

POLYAMIDE

SOLDER

1-1589062-0

TE Connectivity

CIRCULAR CONNECTOR

GENERAL PURPOSE

FEMALE

ONE

NO

NO

NO

NO

NO

SNAP

200

NO

PREASSEM CONN

NO

-55 Cel

YES

NICKEL

1

NOT SPECIFIED

NOT SPECIFIED

POLARIZED

44

PANEL

30 AWG

ALUMINUM ALLOY

0.64

115/230VAC

RECEPTACLE

RND PIN-SKT

1-1589063-0

TE Connectivity

CIRCULAR CONNECTOR

GENERAL PURPOSE

ONE

NO

NO

NO

NO

NO

THREADED

200

NO

PREASSEM CONN

NO

-55 Cel

YES

NICKEL

1

NOT SPECIFIED

NOT SPECIFIED

7

30 AWG

ALUMINUM ALLOY

0.64

115/230VAC

PLUG

RND PIN-SKT

1-2823447-3

TE Connectivity

CIRCULAR CONNECTOR

GENERAL PURPOSE

MALE

ONE

NO

NO

YES

NO

NOT APPLICABLE

30 V

NO

70

NO

NO

-40 Cel

YES

NICKEL

1

NOT SPECIFIED

94V-0

NOT SPECIFIED

POLARIZED

2 A

UL

A

8

250 Cycles

CABLE

26 AWG

BRASS

2A

PLUG

RND PIN-SKT

1-293615-2

TE Connectivity

CIRCULAR CONNECTOR

GENERAL PURPOSE

FEMALE

ONE

NO

NO

NO

NO

NOT APPLICABLE

NO

POLYAMIDE

85

NO

NO

-40 Cel

YES

1

NOT SPECIFIED

NOT SPECIFIED

POLARIZED

20 A

B

5

18 AWG

CABLE

14 AWG

20A

CRIMP

RECEPTACLE

RND PIN-SKT

120-1840-000

ITT Cannon

CIRCULAR CONNECTOR

GENERAL PURPOSE

MALE AND FEMALE

NO

NO

NO

SNAP

NO

NO

YES

COPPER ALLOY

SILVER

COMPATIBLE CONTACTS: 030-2196-000; 031-1267-000; 030-2196-007; 031-1267-006; 030-2196-008

6

SOLID

CABLE

ELASTOMERIC

SS

RECEPTACLE

120-8551-102

ITT Cannon

CIRCULAR CONNECTOR

GENERAL PURPOSE

MALE AND FEMALE

NO

NO

NO

SNAP

NO

NO

YES

COPPER ALLOY

SILVER

COMPATIBLE CONTACTS: 330-8672-100; 031-8703-100; 121348-100; 121347-100

4

SOLID

CABLE

ELASTOMERIC

MSS

RECEPTACLE

4

132042-0671

ITT Cannon

CIRCULAR CONNECTOR

GENERAL PURPOSE

FEMALE

NO

NO

NO

SNAP

POLYSULFONE

NO

NO

NO

POLARIZED

7

SOLID

CABLE

SOLDER

RECEPTACLE

1553640

Phoenix Contact

CIRCULAR CONNECTOR

GENERAL PURPOSE

FEMALE

NO

NO

GOLD OVER NICKEL

NO

THREADED

NO

NO

NO

NOT SPECIFIED

NOT SPECIFIED

SHIELDED

8

SOLID

CABLE

SOCKET

e4

192900-0509

ITT Cannon

CIRCULAR CONNECTOR

GENERAL PURPOSE

FEMALE

YES

NO

NO

BAYONET

POLYAMIDE

NO

NO

YES

NOT SPECIFIED

NOT SPECIFIED

COMPATIBLE CONTACTS: 192990-0030; 192990-0050; 192990-0070; 192990-1250; 192990-0090

15

SOLID

PANEL

CORROSION RESISTANT

MULTIPLE MATING PARTS AVAILABLE

RECEPTACLE

16

21038122405

Harting Electronics & Kg

CIRCULAR CONNECTOR

GENERAL PURPOSE

FEMALE

NO

NO

NO

THREADED

NO

NO

YES

NOT SPECIFIED

NOT SPECIFIED

COMPATIBLE CONTACT: 21011009013

4

SOLID

CABLE

MULTIPLE MATING PARTS AVAILABLE

CRIMP

224064-E

TE Connectivity

CIRCULAR CONNECTOR

GENERAL PURPOSE

FEMALE

ONE

NO

NO

NO

NO

NO

85

NO

PREASSEM CONN

NO

-25 Cel

YES

1

POLARIZED

4 A

A

5

100 Cycles

BOARD

4A

SURFACE MOUNT

RECEPTACLE

RND PIN-SKT

6-1437719-0

TE Connectivity

CIRCULAR CONNECTOR

GENERAL PURPOSE

FEMALE

ONE

NO

NO

NO

NO

NOT APPLICABLE

NO

80

NO

PREASSEM CONN

NO

-40 Cel

YES

NICKEL

1

NOT SPECIFIED

94V-2

NOT SPECIFIED

SHIELDED

3 A

UL

5

SOLID

PANEL

BRASS

3A

SOLDER

RECEPTACLE

RND PIN-SKT

801-007-16MT8-13PA

Glenair

CIRCULAR CONNECTOR

GENERAL PURPOSE

MALE

.75 inch

NO

NO

1.13 inch

THREADED

LIQUID CRYSTAL POLYMER

175

-65 Cel

NO

NICKEL-PTFE

13

SOLID

CABLE

ENVIRONMENT RESISTANT

ALUMINIUM ALLOY

MULTIPLE MATING PARTS AVAILABLE

CRIMP

PLUG

8

801-007-16NF5-3SA

Glenair

CIRCULAR CONNECTOR

GENERAL PURPOSE

FEMALE

NO

NO

Gold (Au)

NO

THREADED

NO

NO

NO

CADMIUM WITH CHROMATE PLATED

BERYLLIUM COPPER

GOLD

POLARIZED

3

SOLID

CABLE

ALUMINUM ALLOY

MULTIPLE MATING PARTS AVAILABLE

CRIMP

PLUG

e4

5

830178-1

TE Connectivity

CIRCULAR CONNECTOR

GENERAL PURPOSE

FEMALE

NO

NO

NO

NO

NOT APPLICABLE

10000 V

NO

THREADED

125

NO

NO

-55 Cel

YES

1

NOT SPECIFIED

NOT SPECIFIED

1

SOLID

PANEL

115/230VAC

SOLDER

RECEPTACLE

RND PIN-SKT

8713U1

Abb Installation Products

CIRCULAR CONNECTOR

GENERAL PURPOSE

MALE

NO

NO

NO

SNAP

NO

NO

NO

NOT SPECIFIED

NOT SPECIFIED

4

SOLID

CABLE

CORROSION RESISTANT

COPPER-FREE ALUMINUM

PLUG

8713U1R

Abb Installation Products

CIRCULAR CONNECTOR

GENERAL PURPOSE

FEMALE

NO

NO

NO

SNAP

NO

NO

NO

NOT SPECIFIED

NOT SPECIFIED

4

SOLID

CABLE

CORROSION RESISTANT

COPPER-FREE ALUMINUM

PLUG

HDP24-24-21PN

TE Connectivity

CIRCULAR CONNECTOR

GENERAL PURPOSE

MALE

ONE

NO

1.648 inch

NO

NO

NO

2 inch

NOT APPLICABLE

1.875 inch

250 V

NO

GLASS FILLED POLYAMIDE

125

NO

NO

-55 Cel

YES

1

NOT SPECIFIED

94V-0

NOT SPECIFIED

POLARIZED

25 A

UL

21

SOLID

PANEL

115/230VAC

RECEPTACLE

.1 inch

RND PIN-SKT

W/STRAIN RELIEF

24

HDP26-24-19SE

TE Connectivity

CIRCULAR CONNECTOR

GENERAL PURPOSE

FEMALE

ONE

NO

1.521 inch

NO

NO

NO

1.95 inch

NOT APPLICABLE

1.95 inch

250 V

NO

GLASS FILLED POLYAMIDE

125

NO

NO

-55 Cel

YES

1

NOT SPECIFIED

94V-0

NOT SPECIFIED

POLARIZED

25 A

UL

19

SOLID

CABLE

115/230VAC

PLUG

.053 inch

RND PIN-SKT

W/STRAIN RELIEF

SKWR12XG

Abb Installation Products

CIRCULAR CONNECTOR

GENERAL PURPOSE

FEMALE

NO

NO

NO

SNAP

NO

NO

NO

NOT SPECIFIED

NOT SPECIFIED

12

SOLID

CABLE

CORROSION RESISTANT

COPPER-FREE ALUMINUM

RECEPTACLE

SLPRBTPSR

Amphenol

CIRCULAR CONNECTOR

GENERAL PURPOSE

FEMALE

NO

NO

NOT APPLICABLE

.99 inch

SNAP

125

-40 Cel

NO

NOT SPECIFIED

NOT SPECIFIED

UL

1

SOLID

CABLE AND PANEL

MULTIPLE MATING PARTS AVAILABLE

CRIMP

RECEPTACLE

SRCN6A13-3S

Japan Aviation Electronics Industry

CIRCULAR CONNECTOR

GENERAL PURPOSE

FEMALE

NO

NO

SILVER

NO

THREADED

85

NO

NO

-25 Cel

NO

NICKEL

COPPER ALLOY

SILVER

POLARIZED

3

SOLID

PANEL

ALUMINUM ALLOY

MULTIPLE MATING PARTS AVAILABLE

SOLDER

PLUG

e4

13

T4111411041-000

TE Connectivity

GENERAL PURPOSE

MALE

ONE

NO

NO

YES

NO

250 V

NO

THREADED

85

NO

PREASSEM CONN

NO

-40 Cel

YES

NICKEL

1

POLARIZED

4 A

B

4

24 AWG

100 Cycles

18 AWG

BRASS

4A

PLUG

RND PIN-SKT

20

XS5W-T421-GMC-K

Omron

CIRCULAR CONNECTOR

GENERAL PURPOSE

MALE

NO

NO

GOLD OVER NICKEL

NO

SNAP

NO

NO

NO

NOT SPECIFIED

NOT SPECIFIED

STANDARD: UL94V-0, SHIELDED

4

SOLID

CABLE

ENVIRONMENT RESISTANT

POLYAMIDE/POLYBUTYLENE TEREPHTHALATE

PLUG

e4

1641785

Phoenix Contact

CIRCULAR CONNECTOR

GENERAL PURPOSE

MALE

NO

NO

Gold (Au) - with Nickel (Ni) barrier

NO

THREADED

NO

NO

NO

NOT SPECIFIED

NOT SPECIFIED

4

SOLID

CABLE

PLUG

e4

205839-3

TE Connectivity

CIRCULAR CONNECTOR

GENERAL PURPOSE

FEMALE

ONE

NO

NO

NO

NO

NOT APPLICABLE

250 V

NO

THREADED

POLYETHYLENE

105

NO

NO

-55 Cel

YES

1

NOT SPECIFIED

94V-0

NOT SPECIFIED

POLARIZED

COMPATIBLE CONTACTS: 66505-3; 66505-9; 66683-2; 66569-2; 66569-3

7.5 A

UL

BLACK

28

SOLID

CABLE

MULTIPLE MATING PARTS AVAILABLE

7.5A

CRIMP

PLUG

STRAIGHT

.068 inch

RND PIN-SKT

SCREW

15/16-20 UNEF-2A

17

205841-2

TE Connectivity

CIRCULAR CONNECTOR

GENERAL PURPOSE

MALE

ONE

NO

NO

NO

NO

NOT APPLICABLE

250 V

NO

THREADED

POLYETHYLENE

105

NO

NO

-55 Cel

YES

1

NOT SPECIFIED

94V-0

NOT SPECIFIED

POLARIZED

COMPATIBLE CONTACTS: 66507-3; 66507-9; 66682-2; 66570-2; 66570-3

7.5 A

UL

BLACK

8

SOLID

CABLE

205838-1

7.5A

CRIMP

RECEPTACLE

STRAIGHT

.068 inch

RND PIN-SKT

SCREW

5/8-24 UNEF-2A

11

208489-1

TE Connectivity

CIRCULAR CONNECTOR

GENERAL PURPOSE

MALE

ONE

NO

NO

NO

NO

NOT APPLICABLE

600 V

NO

THREADED

POLYETHYLENE

105

NO

NO

-55 Cel

YES

NICKEL

1

NOT SPECIFIED

94V-0

NOT SPECIFIED

POLARIZED

COMPATIBLE CONTACTS: 66425-6; 66425-7; 66429-3; 164159-3; 164162-1

13 A

UL

BLACK

A

16

SOLID

30 AWG

PANEL

14 AWG

ZINC ALLOY

MULTIPLE MATING PARTS AVAILABLE

13A

CRIMP/SOLDER

RECEPTACLE

STRAIGHT

.105 inch

RND PIN-SKT

SCREW

15/16-20 UNEF-2A

22

2273011-1

TE Connectivity

CIRCULAR CONNECTOR

GENERAL PURPOSE

ONE

NO

NO

NO

NO

NOT APPLICABLE

30 V

NO

PLASTIC

80

NO

NO

-40 Cel

YES

1

NOT SPECIFIED

NOT SPECIFIED

POLARIZED

BLUE

4

SOLID

22 AWG

115/230VAC

RND PIN-SKT

FDBA50-12-10SN-K-090

TE Connectivity

CIRCULAR CONNECTOR

GENERAL PURPOSE

ONE

NO

NO

NO

NO

115 V

NO

200

NO

NO

-65 Cel

YES

ANODIZED

1

7.5 A

N

10

24 AWG

500 Cycles

PANEL

20 AWG

ALUMINUM ALLOY

7.5A

CRIMP

RECEPTACLE

RND PIN-SKT

12

HDP24-24-35SN-L017

TE Connectivity

CIRCULAR CONNECTOR

GENERAL PURPOSE

FEMALE

ONE

NO

1.802 inch

NO

NO

NO

2 inch

NOT APPLICABLE

1.875 inch

250 V

NO

GLASS FILLED POLYAMIDE

125

NO

NO

-55 Cel

YES

1

NOT SPECIFIED

94V-0

NOT SPECIFIED

POLARIZED

13 A

UL

35

SOLID

PANEL

115/230VAC

RECEPTACLE

.04 inch

RND PIN-SKT

W/STRAIN RELIEF

HEN.0M.303.XLNP

Lemo Usa

CIRCULAR CONNECTOR

GENERAL PURPOSE

FEMALE

NO

NO

NO

THREADED

NO

NO

NO

NOT SPECIFIED

NOT SPECIFIED

POLARIZED

3

SOLID

CABLE AND PANEL

FLUID/VIBRATION RESISTANT

ALUMINUM ALLOY

MULTIPLE MATING PARTS AVAILABLE

CRIMP

SOCKET

HR10-7P-6S(73)

Hirose Electric

CIRCULAR CONNECTOR

GENERAL PURPOSE

COMMERCIAL

FEMALE

1000000000 ohm

NO

NO

Gold (Au)

1.122 inch

NO

SNAP

85

NO

NO

-25 Cel

NO

NICKEL PLATED

1

NOT SPECIFIED

NOT SPECIFIED

POLARIZED HOUSING

POLARIZED

2 A

6

SOLID

1000 Cycles

CABLE

DIN Connectors

ZINC ALLOY AND BRASS

MULTIPLE MATING PARTS AVAILABLE

SOLDER LUG

10 mohm

PLUG

STRAIGHT

RND PIN-SKT

e4

LOCKING

7

SLPPB50BSB2EH

Amphenol

CIRCULAR CONNECTOR

GENERAL PURPOSE

MALE

NO

NO

NOT APPLICABLE

1.142 inch

SNAP

125

-40 Cel

NO

NOT SPECIFIED

NOT SPECIFIED

UL

1

SOLID

CABLE

ENVIRONMENT RESISTANT

MULTIPLE MATING PARTS AVAILABLE

CRIMP

PLUG

SV70-8

Lumberg Connect

CIRCULAR CONNECTOR

GENERAL PURPOSE

COMMERCIAL

MALE

10000000000 ohm

NO

YES

Gold Flash (Au) - with Silver (Ag) barrier

1.65 inch

NO

THREADED

POLYAMIDE

85

NO

YES

-40 Cel

NO

NICKEL PLATED

1

NOT SPECIFIED

NOT SPECIFIED

POLAR PIN POSITION

STANDARD: IEC 60130-9

5 A

VDE

7

SOLID

CABLE

DIN Connectors

COPPER-ZINC ALLOY

MULTIPLE MATING PARTS AVAILABLE

SOLDER

5 mohm

PLUG

STRAIGHT

RND PIN-SKT

.386 inch

LOCKING

T4111001031-000

TE Connectivity

CIRCULAR CONNECTOR

GENERAL PURPOSE

MALE

ONE

NO

NO

NO

NO

NOT APPLICABLE

250 V

NO

THREADED

POLYBUTYLENE TEREPHTHALATE

85

NO

PREASSEM CONN

NO

-40 Cel

YES

1

NOT SPECIFIED

NOT SPECIFIED

POLARIZED

4 A

A

2

24 AWG

100 Cycles

18 AWG

4A

PLUG

RND PIN-SKT

20

T4113412051-000

TE Connectivity

CIRCULAR CONNECTOR

GENERAL PURPOSE

MALE

ONE

NO

NO

YES

NO

NOT APPLICABLE

60 V

NO

THREADED

85

NO

PREASSEM CONN

NO

-40 Cel

YES

NICKEL

1

NOT SPECIFIED

NOT SPECIFIED

POLARIZED

4 A

B

5

24 AWG

100 Cycles

18 AWG

BRASS

4A

PLUG

RND PIN-SKT

20

T4133412041-000

TE Connectivity

GENERAL PURPOSE

FEMALE

ONE

NO

NO

NO

NO

250 V

NO

85

NO

PREASSEM CONN

NO

-40 Cel

YES

NICKEL

1

POLARIZED

4 A

B

4

24 AWG

18 AWG

BRASS

4A

RECEPTACLE

RND PIN-SKT

18

TAD14141111-200

TE Connectivity

CIRCULAR CONNECTOR

GENERAL PURPOSE

ONE

NO

NO

YES

NO

250 V

NO

NO

NO

YES

1

POLARIZED

BLACK

4

22 AWG

115/230VAC

RND PIN-SKT

1-2273002-1

TE Connectivity

CIRCULAR CONNECTOR

GENERAL PURPOSE

ONE

NO

NO

NO

NO

30 V

NO

PLASTIC

80

NO

NO

-30 Cel

YES

1

POLARIZED

BLUE

4

22 AWG

115/230VAC

RND PIN-SKT

1-2823449-1

TE Connectivity

CIRCULAR CONNECTOR

GENERAL PURPOSE

MALE

ONE

NO

NO

YES

NO

NOT APPLICABLE

250 V

NO

70

NO

NO

-40 Cel

YES

NICKEL

1

NOT SPECIFIED

94V-0

NOT SPECIFIED

POLARIZED

4 A

UL

A

5

250 Cycles

CABLE

22 AWG

BRASS

4A

PLUG

RND PIN-SKT

1500350

Phoenix Contact

CIRCULAR CONNECTOR

GENERAL PURPOSE

FEMALE

NO

NO

Gold (Au)

NO

THREADED

NO

YES

NO

NICKEL PLATED

NOT SPECIFIED

NOT SPECIFIED

POLARIZED; STANDARD: IEC 61076-2-104

3

SOLID

CABLE AND PANEL

BRASS

SOCKET

e4

206306-1

TE Connectivity

CIRCULAR CONNECTOR

GENERAL PURPOSE

FEMALE

ONE

NO

NO

NO

NO

NOT APPLICABLE

600 V

NO

THREADED

GLASS FILLED POLYAMIDE

105

NO

NO

-55 Cel

YES

1

NOT SPECIFIED

94V-0

NOT SPECIFIED

POLARIZED

COMPATIBLE CONTACTS: 66424-6; 66424-7; 66428-3; 66428-4; 66405-4

UL

BLACK

A

37

SOLID

PANEL

MULTIPLE MATING PARTS AVAILABLE

115/230VAC

CRIMP

RECEPTACLE

STRAIGHT

RND PIN-SKT

SCREW

1-3/8 - 18 UNEF-2A

23

206437-1

TE Connectivity

CIRCULAR CONNECTOR

GENERAL PURPOSE

MALE

ONE

NO

NO

NO

NO

NOT APPLICABLE

250 V

NO

THREADED

POLYETHYLENE

105

NO

NO

-55 Cel

YES

1

NOT SPECIFIED

94V-0

NOT SPECIFIED

POLARIZED

COMPATIBLE CONTACTS: 66507-3; 66507-9; 66682-2; 66570-2; 66570-3

7.5 A

UL

BLACK

57

SOLID

CABLE

7.5A

CRIMP

PLUG

STRAIGHT

.068 inch

RND PIN-SKT

SCREW

1-3/8 - 18 UNEF-2A

23

2101551-1

TE Connectivity

CIRCULAR CONNECTOR

GENERAL PURPOSE

MALE

ONE

NO

NO

NO

NO

NO

SNAP

125

NO

NO

-55 Cel

YES

1

NOT SPECIFIED

NOT SPECIFIED

POLARIZED

40

COPPER ALLOY

115/230VAC

PLUG

RND PIN-SKT

5

211766-1

TE Connectivity

CIRCULAR CONNECTOR

GENERAL PURPOSE

FEMALE

ONE

NO

NO

NO

NO

600 V

NO

THREADED

GLASS FILLED POLYAMIDE66

105

NO

NO

-55 Cel

YES

1

NOT SPECIFIED

94V-0

NOT SPECIFIED

POLARIZED

COMPATIBLE CONTACTS: 66424-6; 66424-7; 66428-3; 66428-4; 66405-4

UL

BLACK

A

9

SOLID

CABLE

GLASS FILLED POLYAMIDE66

211767-1

115/230VAC

CRIMP

PLUG

STRAIGHT

RND PIN-SKT

SCREW

15/16-20 UNEF-2A

17

Other Function Circular Connectors

Other function circular connectors are a type of electrical connector that are used in a variety of applications, where specific features are required for specialized functionality. They are designed to be rugged and reliable, and can withstand harsh environmental conditions, including moisture, dust, and extreme temperatures.

Other function circular connectors are available in a range of sizes and configurations, with different shell sizes, pin counts, and connector types. They may include features such as sealing, grounding, or EMI shielding to ensure reliable performance in demanding applications.

One advantage of other function circular connectors is their ability to provide specialized functionality, depending on the specific requirements of the application. For example, connectors may include fiber optic, power, or signal contacts, or may be designed for use in high-vibration or high-pressure environments.

Other function circular connectors are commonly used in a variety of industrial applications, including robotics, automation, and machine tools. They may be used to connect sensors, control systems, and other electronic equipment, and may be subject to rigorous testing and qualification requirements to ensure their reliability and performance.