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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 centreline 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 centreline 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, polarised 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 (HKD) Filter the results in the table by unit price based on your quantity.	Qty.
Headers & Wire Housings PERIMETER SEAL PLUG HOUSING 2PIN 2321920-2 TE Connectivity 1: HK$2.88 12,626In Stock	Mfr. Part No. 2321920-2 Mouser Part No 571-2321920-2	TE Connectivity	Headers & Wire Housings PERIMETER SEAL PLUG HOUSING 2PIN Learn More about TE Connectivity 23219 connectors	Datasheet	12,626In Stock	HK$2.88 HK$2.47 HK$2.21 HK$2.10 View HK$1.88 HK$1.74 HK$1.62 HK$1.59 HK$1.41	Min.: 1 Mult.: 1
Headers & Wire Housings REAR WIRE SEAL 5PIN 2321922-5 TE Connectivity 1: HK$2.38 11,368In Stock	Mfr. Part No. 2321922-5 Mouser Part No 571-2321922-5	TE Connectivity	Headers & Wire Housings REAR WIRE SEAL 5PIN Learn More about TE Connectivity 23219 connectors	Datasheet	11,368In Stock	HK$2.38 HK$2.00 HK$1.78 HK$1.70 View HK$1.52 HK$1.28 HK$1.17 HK$1.16 HK$1.04	Min.: 1 Mult.: 1
Headers & Wire Housings REAR WIRE SEAL 6PIN 2321922-6 TE Connectivity 1: HK$2.96 13,855In Stock	Mfr. Part No. 2321922-6 Mouser Part No 571-2321922-6	TE Connectivity	Headers & Wire Housings REAR WIRE SEAL 6PIN Learn More about TE Connectivity 23219 connectors	Datasheet	13,855In Stock	HK$2.96 HK$2.62 HK$2.47 HK$2.37 View HK$1.92 HK$1.78 HK$1.72 HK$1.69 HK$1.61	Min.: 1 Mult.: 1
Headers & Wire Housings PLUG HOUSING SDL2.5 WATERPROOF 5PIN 2321918-5 TE Connectivity 1: HK$10.52 4,911In Stock	Mfr. Part No. 2321918-5 Mouser Part No 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	HK$10.52 HK$8.96 HK$7.99 HK$7.61 View HK$7.13 HK$6.80 HK$6.10 HK$6.04	Min.: 1 Mult.: 1
Headers & Wire Housings RECEPTACLE HOUSING FREE HANGING 6PIN 2321924-6 TE Connectivity 1: HK$11.43 5,234In Stock	Mfr. Part No. 2321924-6 Mouser Part No 571-2321924-6	TE Connectivity	Headers & Wire Housings RECEPTACLE HOUSING FREE HANGING 6PIN Learn More about TE Connectivity 23219 connectors	Datasheet	5,234In Stock	HK$11.43 HK$9.78 HK$8.71 HK$8.30 View HK$7.75 HK$7.38 HK$6.91 HK$6.36 HK$5.62	Min.: 1 Mult.: 1
Headers & Wire Housings RECEPTACLE HOUSING FREE HANGING 4PIN 2321924-4 TE Connectivity 1: HK$10.77 5,288In Stock	Mfr. Part No. 2321924-4 Mouser Part No 571-2321924-4	TE Connectivity	Headers & Wire Housings RECEPTACLE HOUSING FREE HANGING 4PIN Learn More about TE Connectivity 23219 connectors	Datasheet	5,288In Stock	HK$10.77 HK$9.21 HK$8.18 HK$8.00 View HK$7.50 HK$7.13 HK$6.63 HK$5.97 HK$5.84	Min.: 1 Mult.: 1
Headers & Wire Housings PLUG HOUSING SDL2.5 WATERPROOF 3PIN 2321918-3 TE Connectivity 1: HK$4.11 6,173In Stock	Mfr. Part No. 2321918-3 Mouser Part No 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	HK$4.11 HK$3.64 HK$3.40 HK$3.28 View HK$2.94 HK$2.76 HK$2.56	Min.: 1 Mult.: 1
Headers & Wire Housings RECEPTACLE HOUSING FREE HANGING 2PIN 2321924-2 TE Connectivity 1: HK$8.55 5,698In Stock	Mfr. Part No. 2321924-2 Mouser Part No 571-2321924-2	TE Connectivity	Headers & Wire Housings RECEPTACLE HOUSING FREE HANGING 2PIN Learn More about TE Connectivity 23219 connectors	Datasheet	5,698In Stock	HK$8.55 HK$7.30 HK$6.51 HK$6.21 View HK$5.81 HK$5.54 HK$4.97 HK$4.73 HK$4.36	Min.: 1 Mult.: 1
Headers & Wire Housings RECEPTACLE HOUSING PANEL MOUNT 4PIN 2321926-4 TE Connectivity 1: HK$6.08 3,953In Stock	Mfr. Part No. 2321926-4 Mouser Part No 571-2321926-4	TE Connectivity	Headers & Wire Housings RECEPTACLE HOUSING PANEL MOUNT 4PIN Learn More about TE Connectivity 23219 connectors	Datasheet	3,953In Stock	HK$6.08 HK$5.16 HK$4.61 HK$4.39 View HK$3.91 HK$3.15 HK$3.02	Min.: 1 Mult.: 1
Headers & Wire Housings PLUG HOUSING SDL2.5 WATERPROOF 2PIN 2321918-2 TE Connectivity 1: HK$3.78 9,851In Stock	Mfr. Part No. 2321918-2 Mouser Part No 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	HK$3.78 HK$3.24 HK$2.89 HK$2.75 View HK$2.46 HK$2.41 HK$2.16 HK$2.02 HK$1.99	Min.: 1 Mult.: 1
Headers & Wire Housings PERIMETER SEAL PLUG HOUSING 5PIN 2321920-5 TE Connectivity 1: HK$2.79 10,952In Stock	Mfr. Part No. 2321920-5 Mouser Part No 571-2321920-5	TE Connectivity	Headers & Wire Housings PERIMETER SEAL PLUG HOUSING 5PIN Learn More about TE Connectivity 23219 connectors	Datasheet	10,952In Stock	HK$2.79 HK$2.41 HK$2.15 HK$2.05 View HK$1.83 HK$1.66 HK$1.57 HK$1.54 HK$1.47	Min.: 1 Mult.: 1
Headers & Wire Housings PERIMETER SEAL PLUG HOUSING 6PIN 2321920-6 TE Connectivity 1: HK$3.86 15,889In Stock	Mfr. Part No. 2321920-6 Mouser Part No 571-2321920-6	TE Connectivity	Headers & Wire Housings PERIMETER SEAL PLUG HOUSING 6PIN Learn More about TE Connectivity 23219 connectors	Datasheet	15,889In Stock	HK$3.86 HK$3.26 HK$2.90 HK$2.79 View HK$2.29 HK$2.16 HK$2.06 HK$2.00	Min.: 1 Mult.: 1
Headers & Wire Housings PERIMETER SEAL PLUG HOUSING 3PIN 2321920-3 TE Connectivity 1: HK$2.96 7,455In Stock	Mfr. Part No. 2321920-3 Mouser Part No 571-2321920-3	TE Connectivity	Headers & Wire Housings PERIMETER SEAL PLUG HOUSING 3PIN Learn More about TE Connectivity 23219 connectors	Datasheet	7,455In Stock	HK$2.96 HK$2.56 HK$2.33 HK$2.24 View HK$1.85 HK$1.77 HK$1.65 HK$1.64	Min.: 1 Mult.: 1
Headers & Wire Housings RECEPTACLE HOUSING FREE HANGING 3PIN 2321924-3 TE Connectivity 1: HK$8.71 5,476In Stock	Mfr. Part No. 2321924-3 Mouser Part No 571-2321924-3	TE Connectivity	Headers & Wire Housings RECEPTACLE HOUSING FREE HANGING 3PIN Learn More about TE Connectivity 23219 connectors	Datasheet	5,476In Stock	HK$8.71 HK$5.32 HK$4.73 HK$4.63 View HK$4.23 HK$4.18 HK$4.17	Min.: 1 Mult.: 1
Headers & Wire Housings RECEPTACLE HOUSING PANEL MOUNT 3PIN 2321926-3 TE Connectivity / AMP 1: HK$10.60 3,574In Stock	Mfr. Part No. 2321926-3 Mouser Part No 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	HK$10.60 HK$9.04 HK$6.46 HK$6.44 View HK$6.27 HK$5.93	Min.: 1 Mult.: 1
Headers & Wire Housings RECEPTACLE HOUSING PANEL MOUNT 5PIN 2321926-5 TE Connectivity 1: HK$13.32 1,529In Stock	Mfr. Part No. 2321926-5 Mouser Part No 571-2321926-5	TE Connectivity	Headers & Wire Housings RECEPTACLE HOUSING PANEL MOUNT 5PIN Learn More about TE Connectivity 23219 connectors	Datasheet	1,529In Stock	HK$13.32 HK$11.84 HK$11.01 HK$10.60 View HK$9.78 HK$9.29 HK$7.88 HK$7.19 HK$7.11	Min.: 1 Mult.: 1
Headers & Wire Housings PERIMETER SEAL PLUG HOUSING 4PIN 2321920-4 TE Connectivity 1: HK$3.04 10,214In Stock	Mfr. Part No. 2321920-4 Mouser Part No 571-2321920-4	TE Connectivity	Headers & Wire Housings PERIMETER SEAL PLUG HOUSING 4PIN Learn More about TE Connectivity 23219 connectors	Datasheet	10,214In Stock	HK$3.04 HK$2.61 HK$2.33 HK$2.22 View HK$1.98 HK$1.74	Min.: 1 Mult.: 1
Headers & Wire Housings REAR WIRE SEAL 2PIN 2321922-2 TE Connectivity 1: HK$3.29 19,496In Stock	Mfr. Part No. 2321922-2 Mouser Part No 571-2321922-2	TE Connectivity	Headers & Wire Housings REAR WIRE SEAL 2PIN Learn More about TE Connectivity 23219 connectors	Datasheet	19,496In Stock	HK$3.29 HK$2.79 HK$2.49 HK$2.38 View HK$2.12 HK$1.89 HK$1.78 HK$1.75 HK$1.71	Min.: 1 Mult.: 1
Headers & Wire Housings REAR WIRE SEAL 4PIN 2321922-4 TE Connectivity 1: HK$2.55 15,631In Stock	Mfr. Part No. 2321922-4 Mouser Part No 571-2321922-4	TE Connectivity	Headers & Wire Housings REAR WIRE SEAL 4PIN Learn More about TE Connectivity 23219 connectors	Datasheet	15,631In Stock	HK$2.55 HK$2.13 HK$1.91 HK$1.82 View HK$1.62 HK$1.37 HK$1.36 HK$1.33	Min.: 1 Mult.: 1
Headers & Wire Housings REAR WIRE SEAL 3PIN 2321922-3 TE Connectivity 1: HK$2.79 3,119In Stock	Mfr. Part No. 2321922-3 Mouser Part No 571-2321922-3	TE Connectivity	Headers & Wire Housings REAR WIRE SEAL 3PIN Learn More about TE Connectivity 23219 connectors	Datasheet	3,119In Stock	HK$2.79 HK$2.37 HK$2.11 HK$2.01 View HK$1.69 HK$1.50 HK$1.43 HK$1.40 HK$1.37	Min.: 1 Mult.: 1
Terminals RECEPTACLE TERMINAL LOOSE PIECE 1-2321921-1 TE Connectivity / AMP 1: HK$0.822 19,695In Stock	Mfr. Part No. 1-2321921-1 Mouser Part No 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	HK$0.822 HK$0.575 HK$0.518 HK$0.493 View HK$0.411 HK$0.37 HK$0.362 HK$0.345 HK$0.337	Min.: 1 Mult.: 1
Terminals TAB TER SDL2.5 WATERPR LOOSE PIECE 1-2321928-1 TE Connectivity / AMP 1: HK$0.904 13,037In Stock	Mfr. Part No. 1-2321928-1 Mouser Part No 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	HK$0.904 HK$0.764 HK$0.69 HK$0.658 View HK$0.575 HK$0.526 HK$0.493 HK$0.485 HK$0.362	Min.: 1 Mult.: 1
Headers & Wire Housings PLUG HOUSING SDL2.5 WATERPROOF 4PIN 2321918-4 TE Connectivity 1: HK$8.06 1,878In Stock 6,000Expected 1/2/2027	Mfr. Part No. 2321918-4 Mouser Part No 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 1/2/2027	HK$8.06 HK$6.87 HK$6.13 HK$5.84 View HK$5.47 HK$5.32 HK$4.95 HK$4.40 HK$4.26	Min.: 1 Mult.: 1
Headers & Wire Housings PLUG HOUSING SDL2.5 WATERPROOF 6PIN 2321918-6 TE Connectivity 1: HK$12.74 8In Stock	Mfr. Part No. 2321918-6 Mouser Part No 571-2321918-6	TE Connectivity	Headers & Wire Housings PLUG HOUSING SDL2.5 WATERPROOF 6PIN Learn More about TE Connectivity 23219 connectors	Datasheet	8In Stock	HK$12.74 HK$10.93 HK$9.70 HK$9.54 View HK$8.96 HK$8.55 HK$8.01 HK$7.41	Min.: 1 Mult.: 1
Headers & Wire Housings RECEPTACLE TERMINAL 2321921-1 TE Connectivity 11,000: HK$0.353 77,000In Stock	Mfr. Part No. 2321921-1 Mouser Part No 571-2321921-1	TE Connectivity	Headers & Wire Housings RECEPTACLE TERMINAL Learn More about TE Connectivity 23219 connectors	Datasheet	77,000In Stock	Reel HK$0.353	Min.: 11,000 Mult.: 11,000 : 11,000

2.5mm Sealed Signal Double-Lock Connectors

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