Mini Plugs | McMaster-Carr

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Thermocouple Type

Thermocouple Sensor Connection

Flat-Pin Mini Thermocouple Connector

Round-Pin Thermocouple Connector

Electrical Connection

Audio

Flat-Pin Mini Thermocouple Connector

M22

Round-Pin Thermocouple Connector

Color

Connection Gender

Gender

Maximum Temperature

For Maximum Wire Gauge

Wire Connection

Material

Number of Poles

Pin Length

7/16"

1/2"

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

EAR99

For Wire Gauge

Shape

REACH

Electrical Connector Component

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Contact Material

RoHS

Compliant with Exemptions

Length

Distance Between Pins

Voltage

Panel Cutout Diameter

0.38"

0.945"

Housing Thread Location

67 Products

Thermocouple Connectors


Flat-Pin Mini Male Connector	Flat-Pin Mini Female Connector	Round-Pin Male Connector	Round-Pin Female Connector

Simplify connecting your thermocouple to thermometers and control panels—these connectors give your thermocouple a plug-in connection. To attach them to your thermocouple, first remove the panel on these connectors to expose the terminals. Then insert your thermocouple wire leads, tighten the terminals, and reattach the panel.

					Material		Male Connection		Female Connection
	Thermocouple Type	For Max. Wire Ga.	Color	Distance Between Pins	Body	Contact		Each		Each
Flat-Pin Mini Thermocouple Connectors—400° F Max. Temp.







				Screw-Terminal Wire Connection

				B	24	White	0.313"	Plastic	Copper	3869K117	00000	3869K125	00000


				C	23	Red	0.313"	Plastic	Tungsten	3869K143	00000	3869K144	00000
				E	24	Purple	0.313"	Plastic	Nickel	3869K113	0000	3869K121	0000
				J	24	Black	0.313"	Plastic	Iron	3869K33	0000	———	0
				K	24	Yellow	0.313"	Plastic	Nickel	3869K35	0000	———	0
				N	24	Orange	0.313"	Plastic	Nickel	3869K112	0000	3869K119	0000
				R	24	Green	0.313"	Plastic	Copper	3869K114	0000	3869K122	0000
				S	24	Green	0.313"	Plastic	Copper	3869K115	0000	3869K123	0000
				T	24	Blue	0.313"	Plastic	Copper	3869K37	0000	———	0
				U	24	White	0.313"	Plastic	Tungsten	3869K116	0000	3869K124	0000


				Flat-Pin Mini Thermocouple Connectors—800° F Max. Temp.







								Screw-Terminal Wire Connection

								J	24	Red	0.313"	Plastic	Iron	3869K41	0000	———	0


								K	24	Red	0.313"	Plastic	Nickel	3869K42	0000	———	0
								T	24	Red	0.313"	Plastic	Copper	3869K43	0000	———	0


								Round-Pin Thermocouple Connectors—400° F Max. Temp.







												Screw-Terminal Wire Connection

												B	14	White	0.438"	Plastic	Copper	3869K133	0000	3869K141	0000


												C	14	Brown	0.438"	Plastic	Tungsten	3869K134	00000	3869K142	00000
												E	14	Purple	0.438"	Plastic	Nickel	3869K128	0000	3869K136	0000
												N	14	Orange	0.438"	Plastic	Nickel	3869K127	0000	3869K135	0000
												R	14	Green	0.438"	Plastic	Copper	3869K129	0000	3869K137	0000
												S	14	Green	0.438"	Plastic	Copper	3869K131	0000	3869K138	0000
												U	14	White	0.438"	Plastic	Tungsten	3869K132	0000	3869K139	0000

Mini Splitters

Plug × Socket × Socket


2 Poles	3 Poles

4 Poles	5 Poles

6 Poles

Simplify wiring and reduce the number of cords in your automation setup. These splitters create a branch off a main cord or connect multiple devices with a mini connection to a single port in a junction box or I/O module. A threaded housing securely mates with other mini connectors to keep out contaminants and won’t come loose from shaking or vibration. They have a standard pole layout and housing thread size to reduce the chance you’ll mis-mate connectors.

Tee Splitters

IP68 Enclosure Rating and NEMA 6P Enclosure Rating—When mated, these connectors meet IP68 and NEMA 6P for protection against dust, submersion, washdowns, and weather.

	Plug			Sockets
	No. of Poles	Face Dia.	Housing Thread Size	No. of Poles	Face Dia.	Housing Thread Size	Voltage	Current, amp	Housing Material	Temp. Range, ° F	Enclosure Rating	Certification		Each
Plug (UNS External Thread) × Socket (UNS Internal Thread)



		2	0.55"	7/8"-16	2	0.55"	7/8"-16	600V AC/600V DC	13	Polyurethane Rubber	0 to 175	IP68, NEMA 6P	UL Recognized Component, CSA Certified	5032N11	000000


		3	0.55"	7/8"-16	3	0.55"	7/8"-16	600V AC/600V DC	13	Polyurethane Rubber	0 to 175	IP68, NEMA 6P	UL Recognized Component, CSA Certified	5032N12	00000
		4	0.55"	7/8"-16	4	0.55"	7/8"-16	600V AC/600V DC	10	Polyurethane Rubber	0 to 175	IP68, NEMA 6P	UL Recognized Component, CSA Certified	5032N13	00000
		5	0.55"	7/8"-16	5	0.55"	7/8"-16	600V AC/600V DC	8	Polyurethane Rubber	0 to 175	IP68, NEMA 6P	UL Recognized Component, CSA Certified	5032N14	000000
		6	0.55"	7/8"-16	6	0.55"	7/8"-16	600V AC/600V DC	8	Polyurethane Rubber	0 to 175	IP68, NEMA 6P	UL Recognized Component, CSA Certified	5032N15	000000

Accessories for Mini Connectors

Caps


External Thread with Lanyard	Internal Thread with Lanyard

Caps protect connectors and maintain their IP and NEMA ratings when not in use.

		Thread
	For Face Dia.	Size	Type	Material	Temp. Range, ° F		Each
External Thread



		0.55"	7/8"-16	UNS	Epoxy-Coated Zinc Alloy	0 to 220	69005K21	000000


		Internal Thread



				0.55"	7/8"-16	UNS	Anodized Aluminum	0 to 220	69005K22	00000

Thread Adapters

Thread adapters connect plugs and sockets that both have internal threads.

	Thread
	Size	Type	Material	Temp. Range, ° F	Electrical Connector Component		Each
External Thread



		7/8"-16	UNS	Aluminum	-4 to 190	Adapter	69005K51	00000

Audio Equipment Connectors

Male Straight Plugs


1/4" Pin Dia.	3.5 mm Pin Dia.

	Pin Dia.	No. of Poles	Voltage	Current, amp	Wire Connection Method	For Wire Ga.	Housing Material	OD	Lg.	Temp. Range, ° F		Each
Push-In Housing



	Stereo	1/4"	3	48V DC/48V AC	7	Solder	14	Nickel-Plated Brass	0.47"	2.47"	-40 to 185	1760N25	000000


	Stereo	3.5 mm	3	250V AC/140V DC	4	Solder	16	Anodized Aluminum	0.41"	1.71"	0 to 145	1760N32	00000

Male 90° Elbow Plugs


1/4" Pin Dia.	3.5 mm Pin Dia.

	Pin Dia.	No. of Poles	Voltage	Current, amp	Wire Connection Method	For Wire Ga.	Housing Material	OD	Lg.	Temp. Range, ° F		Each
Push-In Housing



	Stereo	1/4"	3	48V DC/48V AC	7	Solder	14	Nickel-Plated Brass	0.5"	1.83"	-40 to 185	1760N27	000000


	Stereo	3.5 mm	3	250V AC/140V DC	4	Solder	16	Anodized Aluminum	0.41"	1.02"	0 to 145	1760N33	00000

Female Straight Sockets

Push In

	For Pin Dia., mm	No. of Poles	Voltage	Current, amp	Wire Connection Method	For Wire Ga.	Housing Material	Sleeve Material	OD	Lg.	Temp. Range, ° F		Each
Push-In Housing



	Stereo	3.5	2	250V AC/140V DC	4	Solder	16	Nickel-Plated Brass	Nickel-Plated Brass	0.41"	1.81"	-40 to 85	1760N34	000000

Female Panel-Mount Straight Receptacles

With Plug

Retaining

Spring

Off (Normally Open) Circuit Position—Receptacles with an off (normally open) circuit position turn equipment on when a device is plugged in.

													Mounting Thread
Audio Connection Channel	For Pin Dia.	No. of Poles	Circuit Position	Voltage, V DC	Current, amp	Wire Connection Method	For Wire Ga.	Housing Material	Sleeve Material	OD	Lg.	For Panel Cutout Dia.	Size	Type	Features	Temp. Range, ° F		Each



	Stereo	1/4"	3	Off (Normally Open)	25	1	Solder	16	Nickel-Plated Brass	Nickel-Plated Brass	0.75"	1.27"	0.38"	3/8"-32	UNEF	Plug Retaining Spring	0 to 145	1760N23	00000

Thermocouple Connector Adapters

Convert round-pin thermocouple connectors to flat-pin mini thermocouple connectors.

						Material
	Thermocouple Type	Max. Temp., ° F	Color	Pin Lg.	Distance Between Pins	Body	Contact		Each
Female Round-Pin Thermocouple Connector × Male Flat-Pin Mini Thermocouple Connector



		B	400	White	7/16"	0.438"	Plastic	Platinum	3869K221	000000


		C	400	Brown	7/16"	0.438"	Plastic	Tungsten	3869K222	00000
		E	400	Purple	7/16"	0.438"	Plastic	Nickel	3869K216	00000
		N	400	Orange	7/16"	0.438"	Plastic	Nickel	3869K215	00000
		R	400	Green	7/16"	0.438"	Plastic	Platinum	3869K217	00000
		S	400	Green	7/16"	0.438"	Plastic	Platinum	3869K218	00000
		T	400	Blue	7/16"	0.438"	Plastic	Copper	3869K214	00000
		U	400	White	7/16"	0.438"	Plastic	Copper	3869K219	00000

Circuit Board Audio Equipment Connectors

Add a spot on your circuit board for plugging in headphones and other audio equipment. To install these connectors, push their contacts through the holes in your circuit board, then solder them in place.

Straight Receptacles

Off (Normally Open) Circuit Position—Connectors with an off (normally open) circuit position turn equipment on when a device is plugged in.

On (Normally Closed) Circuit Position—Connectors with an on (normally closed) circuit position turn equipment off when a device is plugged in.

	For Pin Dia.	No. of Poles	Voltage, V DC	Current, amp	Color	Housing Material	Lg.	Wd.	Ht.	Temp. Range, ° F		Each
Off (Normally Open) Circuit Position



	Stereo	1/4"	3	25	7	Black	Plastic	0.62"	0.62"	1.11"	0 to 145	5734N15	00000


	On (Normally Closed) Circuit Position



			Stereo	1/4"	3	25	1	Black	Plastic	0.62"	0.62"	1.11"	0 to 145	5734N14	0000

90° Elbow Receptacles

Off (Normally Open) Circuit Position—Connectors with an off (normally open) circuit position turn equipment on when a device is plugged in.

On (Normally Closed) Circuit Position—Connectors with an on (normally closed) circuit position turn equipment off when a device is plugged in.

	For Pin Dia., mm	No. of Poles	Voltage, V DC	Current, amp	Color	Housing Material	Lg.	Wd.	Ht.	Temp. Range, ° F	Features		Each
Off (Normally Open) Circuit Position



	Stereo	3.5	3	12	1	Black	Plastic	0.55"	0.45"	0.24"	0 to 145	Clear Cover	5734N13	00000


	On (Normally Closed) Circuit Position



			Stereo	3.5	3	12	1	Black	Plastic	0.55"	0.45"	0.24"	0 to 145	Clear Cover	5734N12	0000

Audio Equipment Adapters

Extend an audio connection by plugging a cord into each end of these adapters.

	Resistance, ohm	Housing Material	Color		Each
Socket × Socket



	3.5	20	Plastic	Black	8317T9	00000

Panel-Mount Audio Equipment Adapters

Connect two stereo cords through a panel with these adapters. Use the included mounting hardware to install them directly into panel cutouts.

				Mounting
	Stereo Connection Size, mm	Resistance	For Panel Cutout Dia.	Fasteners Included	No. of Holes	Hole Dia.	Housing Material	Color		Each
Socket



		3.5	Not Rated	0.945"	Yes	2	0.14"	Chrome-Plated Zinc Alloy	Black	4915N111	000000


		3.5	Not Rated	0.945"	Yes	2	0.14"	Nickel-Plated Zinc Alloy	—	4915N112	00000

Panel-Mount Audio Equipment Connectors


Stereo Connector	Plastic Cap

These connectors mount to panels of any thickness, as long as you drill a mounting hole first.

Off (Normally Open) Circuit Position—Connectors with an off (normally open) circuit position turn equipment on when a device is plugged in.

On (Normally Closed) Circuit Position—Connectors with an on (normally closed) circuit position turn equipment off when a device is plugged in.

Caps—Protect connectors when not in use by covering them with caps (sold separately). Caps are tethered, so you can open them in any direction for access from any angle.

	Receptacles									Caps
						Mounting
	Features	Audio Connection Channel	Wire Connection Method	Housing Material	For Panel Cutout Dia.	Hole Dia.	Fasteners Included		Each		Each
Off (Normally Open) Receptacles







				3.5 mm Audio × Hardwire

				3 Conductor	Stereo	Solder	Nickel-Plated Plastic	0.945"	0.138"	Yes	4540N15	000000	5286N17	00000


				3 Conductor	Stereo	Solder	Black Chrome-Plated Plastic	0.945"	0.138"	Yes	4540N13	00000	5286N17	0000


				On (Normally Closed) Receptacles







								3.5 mm Audio × Hardwire

								5 Conductor	Stereo	Solder	Black Chrome-Plated Plastic	0.945"	0.138"	Yes	4540N12	00000	5286N17	0000