Headers & Wire Housings – Mouser Singapore

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KK 254 RPC Headers

Molex KK 254 Reflow Process Compatible (RPC) Connector System supports a lead-free solder process and delivers up to 5A and 250V per circuit in a 2.54mm pitch package. KK 254 headers are designed to support RoHS lead-free initiatives. Designed with a nylon housing, the wire-to-board system can withstand temperatures up to +260°C. Molex KK 254 series connectors are ideal for use in industries such as automotive, medical, and consumer.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (SGD) Filter the results in the table by unit price based on your quantity.	Qty.	Product	Type	Number of Positions	Pitch	Number of Rows	Mounting Style	Termination Style	Mounting Angle	Contact Gender	Contact Plating	Mating Post Length	Termination Post Length	Series	Tradename	Application	Wire Gauge	Minimum Operating Temperature	Maximum Operating Temperature	Packaging
Headers & Wire Housings KK RPC 100 Hdr FrLk Vert08 Ckt 15Au T&R 171856-4008 Molex 1: $3.26 587In Stock	Mfr. Part No. 171856-4008 Mouser Part No 538-171856-4008	Molex	Headers & Wire Housings KK RPC 100 Hdr FrLk Vert08 Ckt 15Au T&R Learn More about Molex kk 254 rpc headers	Datasheet	587In Stock	Cut Tape $3.26 $2.84 $2.72 $2.54 Reel $1.86 View $2.30 $2.14 $1.75 $1.69	Min.: 1 Mult.: 1 : 1,050	Headers	Locking	8 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Gold	7.44 mm (0.293 in)	2.34 mm (0.092 in)	171856	KK	Wire-to-Board		- 40 C	+ 105 C	Reel, Cut Tape
Headers & Wire Housings KK Hdr RA 6 Ckt 2.54mm Pitch 15um Au 171857-1006 Molex 1: $2.28 1,155In Stock	Mfr. Part No. 171857-1006 Mouser Part No 538-171857-1006	Molex	Headers & Wire Housings KK Hdr RA 6 Ckt 2.54mm Pitch 15um Au Learn More about Molex kk 254 rpc headers	Datasheet	1,155In Stock	$2.28 $2.00 $1.63 $1.50 View $1.46 $1.35 $1.31 $1.16 $1.14	Min.: 1 Mult.: 1	Headers	Locking	6 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Gold	6.73 mm (0.265 in)	2.54 mm (0.1 in)	171857	KK	Wire-to-Board		- 40 C	+ 105 C	Bulk
Headers & Wire Housings KK RPC 100 Hdr FrLk Vert12 Ckt 15Au T&R 171856-4012 Molex 1: $4.99 532In Stock Factory Special Order	Mfr. Part No. 171856-4012 Mouser Part No 538-171856-4012 Factory Special Order	Molex	Headers & Wire Housings KK RPC 100 Hdr FrLk Vert12 Ckt 15Au T&R Learn More about Molex kk 254 rpc headers	Datasheet	532In Stock	Cut Tape $4.99 $4.54 $4.30 $4.00 Reel View $3.50 $3.03 $2.52 $2.46 $2.41	Min.: 1 Mult.: 1 : 750	Headers	Locking	12 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Gold	7.44 mm (0.293 in)	2.34 mm (0.092 in)	171856	KK	Wire-to-Board		- 40 C	+ 105 C	Reel, Cut Tape
Headers & Wire Housings KK TERM 22-30G Reel of 10000 08-56-0109 Molex 10,000: $0.282 110,000In Stock 40,000On Order	Mfr. Part No. 08-56-0109 Mouser Part No 538-08-56-0109	Molex	Headers & Wire Housings KK TERM 22-30G Reel of 10000 Learn More about Molex kk 254 rpc headers	Datasheet	110,000In Stock 40,000On Order	Reel $0.282	Min.: 10,000 Mult.: 10,000 : 10,000	Contacts					Cable Mount / Free Hanging	Crimp		Socket (Female)	Gold			2759	KK	Wire-to-Board, Signal	30 AWG to 22 AWG	- 40 C	+ 80 C	Reel
Headers & Wire Housings KK Hdr RA 2 Ckt 2.54mm Pitch 15um Au 171857-1002 Molex 1: $1.32 30,366In Stock	Mfr. Part No. 171857-1002 Mouser Part No 538-171857-1002	Molex	Headers & Wire Housings KK Hdr RA 2 Ckt 2.54mm Pitch 15um Au Learn More about Molex kk 254 rpc headers	Datasheet	30,366In Stock	$1.32 $1.12 $0.952 $0.849 View $0.805 $0.778 $0.713	Min.: 1 Mult.: 1	Headers	Locking	2 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Gold	6.73 mm (0.265 in)	2.54 mm (0.1 in)	171857	KK	Wire-to-Board		- 40 C	+ 105 C	Bulk
Headers & Wire Housings KK Hdr RA 4 Ckt 2.54mm Pitch Sn 171857-0004 Molex 1: $0.476 17,477In Stock	Mfr. Part No. 171857-0004 Mouser Part No 538-171857-0004	Molex	Headers & Wire Housings KK Hdr RA 4 Ckt 2.54mm Pitch Sn Learn More about Molex kk 254 rpc headers	Datasheet	17,477In Stock	$0.476 $0.398 $0.374 $0.321 View $0.286 $0.248 $0.237 $0.226 $0.216	Min.: 1 Mult.: 1	Headers	Locking	4 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Tin	6.73 mm (0.265 in)	2.54 mm (0.1 in)	171857	KK	Wire-to-Board		- 40 C	+ 105 C	Bulk
Headers & Wire Housings KK Hdr Vrt 2 Ckt 2.54mm Pitch Sn 171856-0002 Molex 1: $0.367 14,150In Stock 34,200Expected 3/12/2026	Mfr. Part No. 171856-0002 Mouser Part No 538-171856-0002	Molex	Headers & Wire Housings KK Hdr Vrt 2 Ckt 2.54mm Pitch Sn Learn More about Molex kk 254 rpc headers	Datasheet	14,150In Stock 34,200Expected 3/12/2026	$0.367 $0.32 $0.303 $0.253 View $0.233 $0.22 $0.215 $0.207 $0.197	Min.: 1 Mult.: 1	Headers	Locking	2 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	7.44 mm (0.293 in)	2.34 mm (0.092 in)	171856	KK	Wire-to-Board		- 40 C	+ 105 C	Bulk
Headers & Wire Housings KK Hdr Vrt 4 Ckt 2.54mm Pitch Sn 171856-0004 Molex 1: $0.34 18,853In Stock	Mfr. Part No. 171856-0004 Mouser Part No 538-171856-0004	Molex	Headers & Wire Housings KK Hdr Vrt 4 Ckt 2.54mm Pitch Sn Learn More about Molex kk 254 rpc headers	Datasheet	18,853In Stock	$0.34 $0.294 $0.25 $0.223 View $0.193 $0.184 $0.178	Min.: 1 Mult.: 1	Headers	Locking	4 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	7.44 mm (0.293 in)	2.34 mm (0.092 in)	171856	KK	Wire-to-Board		- 40 C	+ 105 C	Bulk
Headers & Wire Housings KK Hdr Vrt 4 Ckt 2.54mm Pitch 15um Au 171856-1004 Molex 1: $1.02 5,476In Stock 22,800Expected 28/1/2027	Mfr. Part No. 171856-1004 Mouser Part No 538-171856-1004	Molex	Headers & Wire Housings KK Hdr Vrt 4 Ckt 2.54mm Pitch 15um Au Learn More about Molex kk 254 rpc headers	Datasheet	5,476In Stock 22,800Expected 28/1/2027	$1.02 $0.891 $0.874 $0.805 View $0.772 $0.713 $0.685 $0.645 $0.641	Min.: 1 Mult.: 1	Headers	Locking	4 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Gold	7.44 mm (0.293 in)	2.34 mm (0.092 in)	171856	KK	Wire-to-Board		- 40 C	+ 105 C	Bulk
Headers & Wire Housings KK RPC 100 Hdr FrLk Vert 03 Ckt Tin T&R 171856-3003 Molex 1: $1.29 2,886In Stock	Mfr. Part No. 171856-3003 Mouser Part No 538-171856-3003	Molex	Headers & Wire Housings KK RPC 100 Hdr FrLk Vert 03 Ckt Tin T&R Learn More about Molex kk 254 rpc headers	Datasheet	2,886In Stock	Cut Tape $1.29 $1.09 $0.904 $0.836 Reel $0.753 View $0.806 $0.734	Min.: 1 Mult.: 1 : 1,050	Headers	Locking	3 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	7.44 mm (0.293 in)	2.34 mm (0.092 in)	171856	KK	Wire-to-Board		- 40 C	+ 105 C	Reel, Cut Tape
Headers & Wire Housings KK Hdr RA 3 Ckt 2.54mm Pitch Sn 171857-0003 Molex 1: $0.476 60,957In Stock	Mfr. Part No. 171857-0003 Mouser Part No 538-171857-0003	Molex	Headers & Wire Housings KK Hdr RA 3 Ckt 2.54mm Pitch Sn Learn More about Molex kk 254 rpc headers	Datasheet	60,957In Stock	$0.476 $0.40 $0.34 $0.303 View $0.287 $0.262 $0.249 $0.212	Min.: 1 Mult.: 1	Headers	Locking	3 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Tin	6.73 mm (0.265 in)	2.54 mm (0.1 in)	171857	KK	Wire-to-Board		- 40 C	+ 105 C	Bulk
Headers & Wire Housings KK Hdr RA 3 Ckt 2.54mm Pitch 15um Au 171857-1003 Molex 1: $1.73 4,330In Stock	Mfr. Part No. 171857-1003 Mouser Part No 538-171857-1003	Molex	Headers & Wire Housings KK Hdr RA 3 Ckt 2.54mm Pitch 15um Au Learn More about Molex kk 254 rpc headers	Datasheet	4,330In Stock	$1.73 $1.47 $1.25 $1.11 View $1.08 $1.05 $0.96	Min.: 1 Mult.: 1	Headers	Locking	3 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Gold	6.73 mm (0.265 in)	2.54 mm (0.1 in)	171857	KK	Wire-to-Board		- 40 C	+ 105 C	Bulk
Headers & Wire Housings KK Hdr RA 8 Ckt 2.54mm Pitch 15um Au 171857-1008 Molex 1: $3.32 1,651In Stock	Mfr. Part No. 171857-1008 Mouser Part No 538-171857-1008	Molex	Headers & Wire Housings KK Hdr RA 8 Ckt 2.54mm Pitch 15um Au Learn More about Molex kk 254 rpc headers	Datasheet	1,651In Stock	$3.32 $2.83 $2.56 $2.35 View $2.24 $2.08 $2.03 $1.97 $1.75	Min.: 1 Mult.: 1	Headers	Locking	8 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Gold	6.73 mm (0.265 in)	2.54 mm (0.1 in)	171857	KK	Wire-to-Board		- 40 C	+ 105 C	Bulk
Headers & Wire Housings KK Hdr Vrt 3 Ckt 2.54mm Pitch Sn 171856-0003 Molex 1: $0.503 993In Stock 22,800Expected 22/2/2027	Mfr. Part No. 171856-0003 Mouser Part No 538-171856-0003	Molex	Headers & Wire Housings KK Hdr Vrt 3 Ckt 2.54mm Pitch Sn Learn More about Molex kk 254 rpc headers	Datasheet	993In Stock 22,800Expected 22/2/2027	$0.503 $0.432 $0.43 $0.367 View $0.328 $0.287 $0.269 $0.262	Min.: 1 Mult.: 1	Headers	Locking	3 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	7.44 mm (0.293 in)	2.34 mm (0.092 in)	171856	KK	Wire-to-Board		- 40 C	+ 105 C	Bulk
Headers & Wire Housings KK Hdr Vrt 5 Ckt 2.54mm Pitch Sn 171856-0005 Molex 1: $0.558 2,109In Stock 11,400Expected 28/1/2027	Mfr. Part No. 171856-0005 Mouser Part No 538-171856-0005	Molex	Headers & Wire Housings KK Hdr Vrt 5 Ckt 2.54mm Pitch Sn Learn More about Molex kk 254 rpc headers	Datasheet	2,109In Stock 11,400Expected 28/1/2027	$0.558 $0.491 $0.472 $0.427 View $0.394 $0.375 $0.362 $0.324 $0.307	Min.: 1 Mult.: 1	Headers	Locking	5 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	7.44 mm (0.293 in)	2.34 mm (0.092 in)	171856	KK	Wire-to-Board		- 40 C	+ 105 C	Bulk
Headers & Wire Housings KK Hdr Vrt 6 Ckt 2.54mm Pitch Sn 171856-0006 Molex 1: $0.626 14,358In Stock	Mfr. Part No. 171856-0006 Mouser Part No 538-171856-0006	Molex	Headers & Wire Housings KK Hdr Vrt 6 Ckt 2.54mm Pitch Sn Learn More about Molex kk 254 rpc headers	Datasheet	14,358In Stock	$0.626 $0.555 $0.548 $0.498 View $0.461 $0.416 $0.389 $0.371	Min.: 1 Mult.: 1	Headers	Locking	6 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	7.44 mm (0.293 in)	2.34 mm (0.092 in)	171856	KK	Wire-to-Board		- 40 C	+ 105 C	Bulk
Headers & Wire Housings KK Hdr Vrt 7 Ckt 2.54mm Pitch Sn 171856-0007 Molex 1: $0.925 620In Stock	Mfr. Part No. 171856-0007 Mouser Part No 538-171856-0007	Molex	Headers & Wire Housings KK Hdr Vrt 7 Ckt 2.54mm Pitch Sn Learn More about Molex kk 254 rpc headers	Datasheet	620In Stock	$0.925 $0.79 $0.672 $0.60 View $0.571 $0.559 $0.51 $0.476	Min.: 1 Mult.: 1	Headers	Locking	7 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	7.44 mm (0.293 in)	2.34 mm (0.092 in)	171856	KK	Wire-to-Board		- 40 C	+ 105 C	Bulk
Headers & Wire Housings KK Hdr Vrt 9 Ckt 2.54mm Pitch Sn 171856-0009 Molex 1: $1.02 1,178In Stock	Mfr. Part No. 171856-0009 Mouser Part No 538-171856-0009	Molex	Headers & Wire Housings KK Hdr Vrt 9 Ckt 2.54mm Pitch Sn Learn More about Molex kk 254 rpc headers	Datasheet	1,178In Stock	$1.02 $0.865 $0.736 $0.657 View $0.624 $0.612 $0.556 $0.53	Min.: 1 Mult.: 1	Headers	Locking	9 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	7.44 mm (0.293 in)	2.34 mm (0.092 in)	171856	KK	Wire-to-Board		- 40 C	+ 105 C	Bulk
Headers & Wire Housings KK Hdr Vrt 10 Ckt 2.54mm Pitch Sn 171856-0010 Molex 1: $1.35 1,928In Stock	Mfr. Part No. 171856-0010 Mouser Part No 538-171856-0010	Molex	Headers & Wire Housings KK Hdr Vrt 10 Ckt 2.54mm Pitch Sn Learn More about Molex kk 254 rpc headers	Datasheet	1,928In Stock	$1.35 $1.14 $0.97 $0.866 View $0.821 $0.794 $0.706	Min.: 1 Mult.: 1	Headers	Locking	10 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	7.44 mm (0.293 in)	2.34 mm (0.092 in)	171856	KK	Wire-to-Board		- 40 C	+ 105 C	Bulk
Headers & Wire Housings KK Hdr Vrt 3 Ckt 2.54mm Pitch 15um Au 171856-1003 Molex 1: $0.979 8In Stock 22,800Expected 31/12/2026	Mfr. Part No. 171856-1003 Mouser Part No 538-171856-1003	Molex	Headers & Wire Housings KK Hdr Vrt 3 Ckt 2.54mm Pitch 15um Au Learn More about Molex kk 254 rpc headers	Datasheet	8In Stock 22,800Expected 31/12/2026	$0.979 $0.854 $0.726 $0.649 View $0.56 $0.533 $0.518	Min.: 1 Mult.: 1	Headers	Locking	3 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Gold	7.44 mm (0.293 in)	2.34 mm (0.092 in)	171856	KK	Wire-to-Board		- 40 C	+ 105 C	Bulk
Headers & Wire Housings KK Hdr Vrt 6 Ckt 2.54mm Pitch 15um Au 171856-1006 Molex 1: $1.69 812In Stock	Mfr. Part No. 171856-1006 Mouser Part No 538-171856-1006	Molex	Headers & Wire Housings KK Hdr Vrt 6 Ckt 2.54mm Pitch 15um Au Learn More about Molex kk 254 rpc headers	Datasheet	812In Stock	$1.69 $1.43 $1.21 $1.08 View $0.982 $0.97 $0.908	Min.: 1 Mult.: 1	Headers	Locking	6 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Gold	7.44 mm (0.293 in)	2.34 mm (0.092 in)	171856	KK	Wire-to-Board		- 40 C	+ 105 C	Bulk
Headers & Wire Housings KK Hdr Vrt 7 Ckt 2.54mm Pitch 15um Au 171856-1007 Molex 1: $1.85 815In Stock	Mfr. Part No. 171856-1007 Mouser Part No 538-171856-1007	Molex	Headers & Wire Housings KK Hdr Vrt 7 Ckt 2.54mm Pitch 15um Au Learn More about Molex kk 254 rpc headers	Datasheet	815In Stock	$1.85 $1.58 $1.34 $1.19 View $1.12 $1.10 $1.01	Min.: 1 Mult.: 1	Headers	Locking	7 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Gold	7.44 mm (0.293 in)	2.34 mm (0.092 in)	171856	KK	Wire-to-Board		- 40 C	+ 105 C	Bulk
Headers & Wire Housings KK RPC 100 Hdr FrLk Vert 08 Ckt Tin T&R 171856-3008 Molex 1: $1.90 6In Stock	Mfr. Part No. 171856-3008 Mouser Part No 538-171856-3008	Molex	Headers & Wire Housings KK RPC 100 Hdr FrLk Vert 08 Ckt Tin T&R Learn More about Molex kk 254 rpc headers	Datasheet	6In Stock	Cut Tape $1.90 $1.62 $1.55 $1.46 Reel $1.05 View $1.31 $1.18 $0.993	Min.: 1 Mult.: 1 : 1,050	Headers	Locking	8 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	7.44 mm (0.293 in)	2.34 mm (0.092 in)	171856	KK	Wire-to-Board		- 40 C	+ 105 C	Reel, Cut Tape
Headers & Wire Housings KK RPC 100 Hdr FrLk Vert04 Ckt 15Au T&R 171856-4004 Molex 1: $1.88 304In Stock	Mfr. Part No. 171856-4004 Mouser Part No 538-171856-4004	Molex	Headers & Wire Housings KK RPC 100 Hdr FrLk Vert04 Ckt 15Au T&R Learn More about Molex kk 254 rpc headers	Datasheet	304In Stock	Cut Tape $1.88 $1.60 $1.32 $1.22 $1.18 Reel $1.12	Min.: 1 Mult.: 1 : 1,050	Headers	Locking	4 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Gold	7.44 mm (0.293 in)	2.34 mm (0.092 in)	171856	KK	Wire-to-Board		- 40 C	+ 105 C	Reel, Cut Tape
Headers & Wire Housings KK RPC 100 Hdr FrLk Vert05 Ckt 15Au T&R 171856-4005 Molex 1: $3.44 155In Stock	Mfr. Part No. 171856-4005 Mouser Part No 538-171856-4005	Molex	Headers & Wire Housings KK RPC 100 Hdr FrLk Vert05 Ckt 15Au T&R Learn More about Molex kk 254 rpc headers	Datasheet	155In Stock	Cut Tape $3.44 $3.01 $2.87 $2.23 Reel $1.78 View $1.92 $1.88 $1.73 $1.67	Min.: 1 Mult.: 1 : 1,050	Headers	Locking	5 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Gold	7.44 mm (0.293 in)	2.34 mm (0.092 in)	171856	KK	Wire-to-Board		- 40 C	+ 105 C	Reel, Cut Tape

KK 254 RPC Headers

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