Headers & Wire Housings – Mouser Estonia

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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 (EUR) 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: 2,06 € 602In 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	602In Stock	Cut Tape 2,06 € 1,80 € 1,72 € 1,61 € Reel 1,19 € View 1,45 € 1,34 € 1,11 € 1,08 €	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: 1,44 € 1.175In 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	1.175In Stock	1,44 € 1,26 € 1,08 € 0,989 € View 0,946 € 0,877 € 0,826 € 0,761 € 0,732 €	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: 3,16 € 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 3,16 € 2,87 € 2,72 € 2,53 € Reel View 2,21 € 1,92 € 1,70 € 1,63 €	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: 0,178 € 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 0,178 €	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: 0,834 € 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	0,834 € 0,708 € 0,602 € 0,537 € View 0,509 € 0,476 € 0,451 €	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: 0,301 € 17.614In 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	17.614In Stock	0,301 € 0,252 € 0,237 € 0,203 € View 0,181 € 0,159 € 0,156 €	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: 0,241 € 15.752In Stock 34.200Expected 12/3/2026	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	15.752In Stock 34.200Expected 12/3/2026	0,241 € 0,203 € 0,193 € 0,162 € View 0,149 € 0,141 € 0,138 € 0,131 € 0,125 €	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: 0,215 € 21.228In 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	21.228In Stock	0,215 € 0,186 € 0,158 € 0,148 €	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: 0,645 € 5.616In Stock	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	5.616In Stock	0,645 € 0,563 € 0,553 € 0,509 € View 0,488 € 0,451 € 0,433 € 0,408 € 0,405 €	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: 0,817 € 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 0,817 € 0,737 € Reel 0,737 €	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 15um Au 171857-1003 Molex 1: 1,09 € 4.830In 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	4.830In Stock	1,09 € 0,929 € 0,789 € 0,704 € View 0,684 € 0,664 € 0,607 €	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: 2,10 € 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	2,10 € 1,79 € 1,62 € 1,49 € View 1,42 € 1,32 € 1,28 € 1,25 € 1,11 €	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 5 Ckt 2.54mm Pitch Sn 171856-0005 Molex 1: 0,353 € 2.622In Stock	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	2.622In Stock	0,353 € 0,31 € 0,298 € 0,27 € View 0,249 € 0,237 € 0,229 € 0,205 € 0,194 €	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 3 Ckt 2.54mm Pitch Sn 171856-0003 Molex 1: 0,335 € 1.328In Stock	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	1.328In Stock	0,335 € 0,283 € 0,277 € 0,24 € View 0,192 € 0,172 € 0,168 € 0,159 €	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 6 Ckt 2.54mm Pitch Sn 171856-0006 Molex 1: 0,447 € 3.078In Stock 11.400Expected 12/10/2026	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	3.078In Stock 11.400Expected 12/10/2026	0,447 € 0,382 € 0,379 € 0,327 € View 0,292 € 0,27 € 0,26 € 0,24 € 0,236 €	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: 0,585 € 645In 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	645In Stock	0,585 € 0,50 € 0,425 € 0,379 € View 0,361 € 0,353 € 0,323 € 0,301 €	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: 0,645 € 1.188In 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	1.188In Stock	0,645 € 0,547 € 0,465 € 0,415 € View 0,395 € 0,387 € 0,352 € 0,335 €	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: 0,851 € 1.935In 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	1.935In Stock	0,851 € 0,722 € 0,613 € 0,548 € View 0,519 € 0,502 € 0,461 €	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: 0,619 € 5In Stock 22.800Expected 12/31/2026	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	5In Stock 22.800Expected 12/31/2026	0,619 € 0,54 € 0,459 € 0,41 € View 0,354 € 0,337 € 0,328 €	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: 1,07 € 827In 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	827In Stock	1,07 € 0,903 € 0,767 € 0,685 € View 0,621 € 0,613 € 0,574 €	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: 1,17 € 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	1,17 € 0,998 € 0,845 € 0,754 € View 0,705 € 0,697 € 0,641 €	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: 1,20 € 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 1,20 € 1,02 € 0,98 € 0,94 € Reel 0,94 €	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: 1,19 € 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 1,19 € 1,01 € 0,913 € Reel 0,913 €	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: 2,18 € 165In 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	165In Stock	Cut Tape 2,18 € 1,90 € 1,81 € 1,48 € Reel 1,15 € View 1,21 € 1,19 € 1,14 € 1,12 €	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
Headers & Wire Housings KK Hdr RA 2 Ckt 2.54mm Pitch Sn 171857-0002 Molex 1: 0,284 € 3.531In Stock 34.200Expected 12/10/2026	Mfr. Part No. 171857-0002 Mouser Part No 538-171857-0002	Molex	Headers & Wire Housings KK Hdr RA 2 Ckt 2.54mm Pitch Sn Learn More about Molex kk 254 rpc headers	Datasheet	3.531In Stock 34.200Expected 12/10/2026	0,284 € 0,243 € 0,237 € 0,202 € View 0,179 € 0,163 € 0,153 € 0,144 € 0,137 €	Min.: 1 Mult.: 1	Headers	Locking	2 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

KK 254 RPC Headers

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