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2.5mm Sealed Signal Double-Lock Connectors

TE Connectivity's (TE) 2.5mm Sealed Signal Double-Lock Connectors offer secondary locking safety combined with IP67-rated sealing protection. A space-saving 2.5mm centerline provides a compact design solution, while robust seals enable reliable performance in water-related or high-humidity environments. Contacts are on a miniature 2.5mm centerline spacing and accept 26AWG to 20AWG wire. Rated up to 3A maximum per line, TE 2.5mm Sealed Signal Double Lock Connectors are designed to help ease manual assembly, including a snag-proof latch, polarized terminals, and an optional terminal position assurance (TPA). Panel-mount and free-hanging configurations provide flexible design options for a range of applications. Cap and plug housings meet the glow wire test (+750°C, no flame) and UL 94V-0 requirements to meet global industry safety standards.

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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.
Headers & Wire Housings REAR WIRE SEAL 5PIN 2321922-5 TE Connectivity 1: $0.29 A tariff of 30% may be applied if shipping to the United States. 11,368In Stock	Mfr. Part # 2321922-5 Mouser Part # 571-2321922-5	TE Connectivity	Headers & Wire Housings REAR WIRE SEAL 5PIN Learn More about TE Connectivity 23219 connectors	Datasheet	11,368In Stock	$0.29 $0.243 $0.217 $0.207 View $0.185 $0.156 $0.149 $0.146 $0.135 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Headers & Wire Housings PERIMETER SEAL PLUG HOUSING 2PIN 2321920-2 TE Connectivity 1: $0.35 A tariff of 30% may be applied if shipping to the United States. 12,626In Stock	Mfr. Part # 2321920-2 Mouser Part # 571-2321920-2	TE Connectivity	Headers & Wire Housings PERIMETER SEAL PLUG HOUSING 2PIN Learn More about TE Connectivity 23219 connectors	Datasheet	12,626In Stock	$0.35 $0.301 $0.269 $0.256 View $0.229 $0.212 $0.209 $0.193 $0.166 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Headers & Wire Housings REAR WIRE SEAL 6PIN 2321922-6 TE Connectivity 1: $0.36 A tariff of 30% may be applied if shipping to the United States. 13,855In Stock	Mfr. Part # 2321922-6 Mouser Part # 571-2321922-6	TE Connectivity	Headers & Wire Housings REAR WIRE SEAL 6PIN Learn More about TE Connectivity 23219 connectors	Datasheet	13,855In Stock	$0.36 $0.319 $0.301 $0.288 View $0.233 $0.216 $0.209 $0.205 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Headers & Wire Housings PLUG HOUSING SDL2.5 WATERPROOF 2PIN 2321918-2 TE Connectivity 1: $0.46 A tariff of 30% may be applied if shipping to the United States. 9,851In Stock	Mfr. Part # 2321918-2 Mouser Part # 571-2321918-2	TE Connectivity	Headers & Wire Housings PLUG HOUSING SDL2.5 WATERPROOF 2PIN Learn More about TE Connectivity 23219 connectors	Datasheet	9,851In Stock	$0.46 $0.394 $0.352 $0.335 View $0.299 $0.286 $0.263 $0.249 $0.242 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Headers & Wire Housings PLUG HOUSING SDL2.5 WATERPROOF 5PIN 2321918-5 TE Connectivity 1: $1.28 A tariff of 30% may be applied if shipping to the United States. 4,911In Stock	Mfr. Part # 2321918-5 Mouser Part # 571-2321918-5	TE Connectivity	Headers & Wire Housings PLUG HOUSING SDL2.5 WATERPROOF 5PIN Learn More about TE Connectivity 23219 connectors	Datasheet	4,911In Stock	$1.28 $1.09 $0.972 $0.926 View $0.868 $0.827 $0.742 $0.735 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Headers & Wire Housings RECEPTACLE HOUSING FREE HANGING 6PIN 2321924-6 TE Connectivity 1: $1.39 A tariff of 30% may be applied if shipping to the United States. 5,234In Stock	Mfr. Part # 2321924-6 Mouser Part # 571-2321924-6	TE Connectivity	Headers & Wire Housings RECEPTACLE HOUSING FREE HANGING 6PIN Learn More about TE Connectivity 23219 connectors	Datasheet	5,234In Stock	$1.39 $1.19 $1.06 $1.01 View $0.943 $0.898 $0.841 $0.774 $0.708 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Headers & Wire Housings RECEPTACLE HOUSING FREE HANGING 4PIN 2321924-4 TE Connectivity 1: $1.32 A tariff of 30% may be applied if shipping to the United States. 5,288In Stock	Mfr. Part # 2321924-4 Mouser Part # 571-2321924-4	TE Connectivity	Headers & Wire Housings RECEPTACLE HOUSING FREE HANGING 4PIN Learn More about TE Connectivity 23219 connectors	Datasheet	5,288In Stock	$1.32 $1.13 $1.01 $0.973 View $0.912 $0.868 $0.807 $0.726 $0.71 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Headers & Wire Housings PLUG HOUSING SDL2.5 WATERPROOF 3PIN 2321918-3 TE Connectivity 1: $0.56 A tariff of 30% may be applied if shipping to the United States. 6,173In Stock	Mfr. Part # 2321918-3 Mouser Part # 571-2321918-3	TE Connectivity	Headers & Wire Housings PLUG HOUSING SDL2.5 WATERPROOF 3PIN Learn More about TE Connectivity 23219 connectors	Datasheet	6,173In Stock	$0.56 $0.496 $0.46 $0.435 View $0.392 $0.35 $0.332 $0.325 $0.319 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Headers & Wire Housings RECEPTACLE HOUSING FREE HANGING 2PIN 2321924-2 TE Connectivity 1: $1.04 A tariff of 30% may be applied if shipping to the United States. 6,048In Stock	Mfr. Part # 2321924-2 Mouser Part # 571-2321924-2	TE Connectivity	Headers & Wire Housings RECEPTACLE HOUSING FREE HANGING 2PIN Learn More about TE Connectivity 23219 connectors	Datasheet	6,048In Stock	$1.04 $0.888 $0.792 $0.755 View $0.707 $0.674 $0.605 $0.575 $0.531 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Headers & Wire Housings RECEPTACLE HOUSING PANEL MOUNT 4PIN 2321926-4 TE Connectivity 1: $0.74 A tariff of 30% may be applied if shipping to the United States. 3,953In Stock	Mfr. Part # 2321926-4 Mouser Part # 571-2321926-4	TE Connectivity	Headers & Wire Housings RECEPTACLE HOUSING PANEL MOUNT 4PIN Learn More about TE Connectivity 23219 connectors	Datasheet	3,953In Stock	$0.74 $0.628 $0.561 $0.534 View $0.476 $0.383 $0.368 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Headers & Wire Housings PERIMETER SEAL PLUG HOUSING 3PIN 2321920-3 TE Connectivity 1: $0.36 A tariff of 30% may be applied if shipping to the United States. 7,455In Stock	Mfr. Part # 2321920-3 Mouser Part # 571-2321920-3	TE Connectivity	Headers & Wire Housings PERIMETER SEAL PLUG HOUSING 3PIN Learn More about TE Connectivity 23219 connectors	Datasheet	7,455In Stock	$0.36 $0.312 $0.284 $0.273 View $0.225 $0.215 $0.201 $0.20 $0.199 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Headers & Wire Housings PERIMETER SEAL PLUG HOUSING 5PIN 2321920-5 TE Connectivity 1: $0.34 A tariff of 30% may be applied if shipping to the United States. 10,952In Stock	Mfr. Part # 2321920-5 Mouser Part # 571-2321920-5	TE Connectivity	Headers & Wire Housings PERIMETER SEAL PLUG HOUSING 5PIN Learn More about TE Connectivity 23219 connectors	Datasheet	10,952In Stock	$0.34 $0.293 $0.262 $0.249 View $0.223 $0.202 $0.191 $0.187 $0.179 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Headers & Wire Housings PERIMETER SEAL PLUG HOUSING 6PIN 2321920-6 TE Connectivity 1: $0.47 A tariff of 30% may be applied if shipping to the United States. 15,889In Stock	Mfr. Part # 2321920-6 Mouser Part # 571-2321920-6	TE Connectivity	Headers & Wire Housings PERIMETER SEAL PLUG HOUSING 6PIN Learn More about TE Connectivity 23219 connectors	Datasheet	15,889In Stock	$0.47 $0.396 $0.353 $0.339 View $0.278 $0.263 $0.25 $0.243 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Headers & Wire Housings RECEPTACLE HOUSING FREE HANGING 3PIN 2321924-3 TE Connectivity 1: $1.07 A tariff of 30% may be applied if shipping to the United States. 5,476In Stock	Mfr. Part # 2321924-3 Mouser Part # 571-2321924-3	TE Connectivity	Headers & Wire Housings RECEPTACLE HOUSING FREE HANGING 3PIN Learn More about TE Connectivity 23219 connectors	Datasheet	5,476In Stock	$1.07 $0.699 $0.592 $0.578 View $0.532 $0.516 $0.51 $0.507 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Headers & Wire Housings RECEPTACLE HOUSING PANEL MOUNT 3PIN 2321926-3 TE Connectivity / AMP 1: $1.29 A tariff of 30% may be applied if shipping to the United States. 3,574In Stock	Mfr. Part # 2321926-3 Mouser Part # 571-2321926-3	TE Connectivity / AMP	Headers & Wire Housings RECEPTACLE HOUSING PANEL MOUNT 3PIN Learn More about TE Connectivity / AMP te connectivity 23219 connectors	Datasheet	3,574In Stock	$1.29 $1.10 $0.818 $0.793 View $0.763 $0.721 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Headers & Wire Housings RECEPTACLE HOUSING PANEL MOUNT 5PIN 2321926-5 TE Connectivity 1: $1.64 A tariff of 30% may be applied if shipping to the United States. 1,529In Stock	Mfr. Part # 2321926-5 Mouser Part # 571-2321926-5	TE Connectivity	Headers & Wire Housings RECEPTACLE HOUSING PANEL MOUNT 5PIN Learn More about TE Connectivity 23219 connectors	Datasheet	1,529In Stock	$1.64 $1.45 $1.36 $1.30 View $1.19 $1.12 $0.959 $0.891 $0.865 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Headers & Wire Housings PERIMETER SEAL PLUG HOUSING 4PIN 2321920-4 TE Connectivity 1: $0.37 A tariff of 30% may be applied if shipping to the United States. 10,214In Stock	Mfr. Part # 2321920-4 Mouser Part # 571-2321920-4	TE Connectivity	Headers & Wire Housings PERIMETER SEAL PLUG HOUSING 4PIN Learn More about TE Connectivity 23219 connectors	Datasheet	10,214In Stock	$0.37 $0.317 $0.283 $0.27 View $0.241 $0.212 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Headers & Wire Housings REAR WIRE SEAL 2PIN 2321922-2 TE Connectivity 1: $0.40 A tariff of 44% may be applied if shipping to the United States. 19,996In Stock	Mfr. Part # 2321922-2 Mouser Part # 571-2321922-2	TE Connectivity	Headers & Wire Housings REAR WIRE SEAL 2PIN Learn More about TE Connectivity 23219 connectors	Datasheet	19,996In Stock	$0.40 $0.34 $0.303 $0.289 View $0.258 $0.23 $0.217 $0.213 $0.208 A tariff of 44% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Headers & Wire Housings REAR WIRE SEAL 4PIN 2321922-4 TE Connectivity 1: $0.31 A tariff of 30% may be applied if shipping to the United States. 15,631In Stock	Mfr. Part # 2321922-4 Mouser Part # 571-2321922-4	TE Connectivity	Headers & Wire Housings REAR WIRE SEAL 4PIN Learn More about TE Connectivity 23219 connectors	Datasheet	15,631In Stock	$0.31 $0.259 $0.232 $0.217 View $0.197 $0.162 $0.161 $0.16 $0.155 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Headers & Wire Housings REAR WIRE SEAL 3PIN 2321922-3 TE Connectivity 1: $0.34 A tariff of 30% may be applied if shipping to the United States. 3,119In Stock	Mfr. Part # 2321922-3 Mouser Part # 571-2321922-3	TE Connectivity	Headers & Wire Housings REAR WIRE SEAL 3PIN Learn More about TE Connectivity 23219 connectors	Datasheet	3,119In Stock	$0.34 $0.288 $0.257 $0.245 View $0.205 $0.182 $0.174 $0.17 $0.167 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Terminals RECEPTACLE TERMINAL LOOSE PIECE 1-2321921-1 TE Connectivity / AMP 1: $0.10 A tariff of 30% may be applied if shipping to the United States. 19,695In Stock	Mfr. Part # 1-2321921-1 Mouser Part # 571-1-2321921-1	TE Connectivity / AMP	Terminals RECEPTACLE TERMINAL LOOSE PIECE Learn More about TE Connectivity / AMP te connectivity 23219 connectors	Datasheet	19,695In Stock	$0.10 $0.07 $0.063 $0.06 View $0.052 $0.048 $0.046 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Terminals TAB TER SDL2.5 WATERPR LOOSE PIECE 1-2321928-1 TE Connectivity / AMP 1: $0.11 A tariff of 30% may be applied if shipping to the United States. 13,037In Stock	Mfr. Part # 1-2321928-1 Mouser Part # 571-1-2321928-1	TE Connectivity / AMP	Terminals TAB TER SDL2.5 WATERPR LOOSE PIECE Learn More about TE Connectivity / AMP te connectivity 23219 connectors	Datasheet	13,037In Stock	$0.11 $0.093 $0.084 $0.08 View $0.07 $0.064 $0.06 $0.059 $0.044 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Headers & Wire Housings PLUG HOUSING SDL2.5 WATERPROOF 4PIN 2321918-4 TE Connectivity 1: $0.98 A tariff of 30% may be applied if shipping to the United States. 1,878In Stock 6,000Expected 3/22/2027	Mfr. Part # 2321918-4 Mouser Part # 571-2321918-4	TE Connectivity	Headers & Wire Housings PLUG HOUSING SDL2.5 WATERPROOF 4PIN Learn More about TE Connectivity 23219 connectors	Datasheet	1,878In Stock 6,000Expected 3/22/2027	$0.98 $0.836 $0.746 $0.711 View $0.66 $0.622 $0.568 $0.544 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Headers & Wire Housings PLUG HOUSING SDL2.5 WATERPROOF 6PIN 2321918-6 TE Connectivity 1: $1.55 A tariff of 30% may be applied if shipping to the United States. 8In Stock	Mfr. Part # 2321918-6 Mouser Part # 571-2321918-6	TE Connectivity	Headers & Wire Housings PLUG HOUSING SDL2.5 WATERPROOF 6PIN Learn More about TE Connectivity 23219 connectors	Datasheet	8In Stock	$1.55 $1.33 $1.18 $1.16 View $1.09 $1.04 $0.975 $0.902 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Headers & Wire Housings RECEPTACLE TERMINAL 2321921-1 TE Connectivity 11,000: $0.043 A tariff of 30% may be applied if shipping to the United States. 11,000In Stock 66,000Expected 11/11/2026	Mfr. Part # 2321921-1 Mouser Part # 571-2321921-1	TE Connectivity	Headers & Wire Housings RECEPTACLE TERMINAL Learn More about TE Connectivity 23219 connectors	Datasheet	11,000In Stock 66,000Expected 11/11/2026	Reel $0.043 A tariff of 30% may be applied if shipping to the United States.	Min.: 11,000 Mult.: 11,000 : 11,000

2.5mm Sealed Signal Double-Lock Connectors

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