Headers & Wire Housings

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KK Connectors

Molex KK Interconnection System consists of connectors that form the building block for creating thousands of different configurations. This system offers polarization features that ensure correct mating. The system incorporates offset header entry holes that provide +180°C polarization and allows both power and signal to carry through the same housing. This connector system also enables loading with optional polarization keys and pegs that ensure the one-way mating of headers and housings. Molex KK Interconnection System comes with customizable KK headers that offer more polarization options and design configurations. These include headers with voided pins, customized pin lengths, kinked PC tails, and varying tin or gold plating options.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (JPY) 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 VERT B/A HDR 24P friction lock 41671-0023 Molex 1: ¥729.2 825In Stock	Mfr. Part # 41671-0023 Mouser Part # 538-41671-0023	Molex	Headers & Wire Housings VERT B/A HDR 24P friction lock Learn More about Molex kk	Datasheet	825In Stock	¥729.2 ¥664.4 ¥649.5 ¥647.8 View ¥591.3 ¥569.7 ¥526.5 ¥504.9	Min.: 1 Mult.: 1	Headers	Breakaway	24 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Gold	11.43 mm (0.45 in)	4.37 mm (0.172 in)	41671	KK	Wire-to-Board, Power		- 40 C	+ 80 C	Bulk
Headers & Wire Housings 6POS VERT .156 HDR 41791-0836 Molex 1: ¥358.8 5,872In Stock	Mfr. Part # 41791-0836 Mouser Part # 538-41791-0836	Molex	Headers & Wire Housings 6POS VERT .156 HDR Learn More about Molex kk	Datasheet	5,872In Stock	¥358.8 ¥305.6 ¥297.3 ¥295.7 View ¥252.5 ¥224.2 ¥217.6 ¥214.3 ¥186	Min.: 1 Mult.: 1	Headers	Locking	6 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Gold	11.43 mm (0.45 in)	3.56 mm (0.14 in)	41791	KK	Wire-to-Board, Power		- 40 C	+ 80 C	Bulk
Headers & Wire Housings KK CE TRM 22-30G FEM Reel of 1000 08-50-0031 (Mouser Reel) Molex 1,000: ¥12 107,000In Stock	Mfr. Part # 08-50-0031 (Mouser Reel) Mouser Part # 538-08-50-0031-MR	Molex	Headers & Wire Housings KK CE TRM 22-30G FEM Reel of 1000 Learn More about Molex kk	Datasheet	107,000In Stock	Reel ¥12	Min.: 1,000 Mult.: 1,000 : 1,000	Contacts					Cable Mount / Free Hanging	Crimp		Socket (Female)	Tin			4809	KK		30 AWG to 22 AWG	- 40 C	+ 80 C	Reel
Headers & Wire Housings KK 156 Term Crimp 22-26AWG 08-50-0112 Molex 1: ¥139.5 5,312In Stock	Mfr. Part # 08-50-0112 Mouser Part # 538-08-50-0112	Molex	Headers & Wire Housings KK 156 Term Crimp 22-26AWG Learn More about Molex kk	Datasheet	5,312In Stock	¥139.5 ¥120.8 ¥110.5 ¥99.5 View ¥90.9 ¥75.2 ¥70.4 ¥58	Min.: 1 Mult.: 1	Contacts					Cable Mount / Free Hanging	Crimp		Socket (Female)	Tin			2578	KK		26 AWG to 22 AWG	- 40 C	+ 80 C	Bulk
Headers & Wire Housings 13 CKT HOUSING 09-50-3131 Molex 1: ¥119.6 6,586In Stock	Mfr. Part # 09-50-3131 Mouser Part # 538-09-50-3131	Molex	Headers & Wire Housings 13 CKT HOUSING Learn More about Molex kk	Datasheet	6,586In Stock	¥119.6 ¥109.6 ¥103.3 ¥98.3 View ¥89.7 ¥89.4 ¥83.7	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	13 Position	3.96 mm (0.156 in)	1 Row	Cable Mount / Free Hanging	Crimp		Socket (Female)				2139	KK					Bulk
Headers & Wire Housings KK 156 Crimp Housing 07 Ckt 09-50-8070 Molex 1: ¥66.4 10,096In Stock	Mfr. Part # 09-50-8070 Mouser Part # 538-09-50-8070	Molex	Headers & Wire Housings KK 156 Crimp Housing 07 Ckt Learn More about Molex kk	Datasheet	10,096In Stock	¥66.4 ¥57 ¥50 ¥44.2 View ¥39.7 ¥32.4 ¥30.2 ¥29.4 ¥25.6	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	7 Position	3.96 mm (0.156 in)	1 Row	Cable Mount / Free Hanging	Crimp		Socket (Female)				41695	KK	Wire-to-Board, Power				Bulk
Headers & Wire Housings 3P VERT HDR RND PIN 10-08-1031 Molex 1: ¥61.5 10,196In Stock	Mfr. Part # 10-08-1031 Mouser Part # 538-10-08-1031	Molex	Headers & Wire Housings 3P VERT HDR RND PIN Learn More about Molex kk	Datasheet	10,196In Stock	¥61.5 ¥55 ¥54.3 ¥49.3 View ¥44.2 ¥43.4 ¥37.5 ¥36.7 ¥36.5	Min.: 1 Mult.: 1	Headers	Unshrouded	3 Position	5.08 mm (0.2 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin			3003	KK					Bulk
Headers & Wire Housings KK Hdr Vrt 10 Ckt 3.96mm Pitch Sn 171813-0010 Molex 1: ¥232.5 4,439In Stock	Mfr. Part # 171813-0010 Mouser Part # 538-171813-0010	Molex	Headers & Wire Housings KK Hdr Vrt 10 Ckt 3.96mm Pitch Sn Learn More about Molex kk 396 rpc headers	Datasheet	4,439In Stock	¥232.5 ¥196 ¥189.4 ¥176.1 View ¥160.1 ¥144 ¥128.1 ¥124.9 ¥118.8	Min.: 1 Mult.: 1	Headers	Locking	10 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	11.38 mm (0.448 in)	2.37 mm (0.093 in)	171813	KK	Wire-to-Board		- 40 C	+ 105 C	Bulk
Headers & Wire Housings 10POS FEMALE HOUSING FRICTION LOCK 22-01-1102 Molex 1: ¥94.7 6,181In Stock	Mfr. Part # 22-01-1102 Mouser Part # 538-22-01-1102	Molex	Headers & Wire Housings 10POS FEMALE HOUSING FRICTION LOCK Learn More about Molex kk	Datasheet	6,181In Stock	¥94.7 ¥74.2 ¥66.3 ¥62.5 View ¥45.2 ¥43.5	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	10 Position	2.5 mm (0.098 in)	1 Row	Cable Mount / Free Hanging	Crimp		Socket (Female)				5051	KK	Wire-to-Board, Signal		- 40 C	+ 105 C	Bulk
Headers & Wire Housings 14P HOUSING W/RAMP 22-01-2147 Molex 1: ¥48.2 23,596In Stock	Mfr. Part # 22-01-2147 Mouser Part # 538-22-01-2147	Molex	Headers & Wire Housings 14P HOUSING W/RAMP Learn More about Molex kk	Datasheet	23,596In Stock	¥48.2 ¥40.7 ¥39	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	14 Position	2.54 mm (0.1 in)	1 Row	Cable Mount / Free Hanging	Crimp		Socket (Female)				2695	KK	Wire-to-Board, Signal				Bulk
Headers & Wire Housings .100 KK HEADER 22-03-2102 Molex 1: ¥122.9 4,224In Stock	Mfr. Part # 22-03-2102 Mouser Part # 538-22-03-2102	Molex	Headers & Wire Housings .100 KK HEADER Learn More about Molex kk	Datasheet	4,224In Stock	¥122.9 ¥104.3 ¥88.7 ¥79.2 View ¥75.4 ¥72.8 ¥61.5 ¥61.3	Min.: 1 Mult.: 1	Headers	Pin Strip	10 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	11.05 mm (0.435 in)	3.18 mm (0.125 in)	4030	KK	Board-to-Board, Wire-to-Board, Signal		- 40 C	+ 80 C
Headers & Wire Housings 2.50MM R/A HDR 2P friction lock 22-05-1022 Molex 1: ¥109.6 7,712In Stock	Mfr. Part # 22-05-1022 Mouser Part # 538-22-05-1022	Molex	Headers & Wire Housings 2.50MM R/A HDR 2P friction lock Learn More about Molex mini latch wire to board system	Datasheet	7,712In Stock	¥109.6 ¥89.7 ¥88 ¥79.1 View ¥77.6 ¥77.1	Min.: 1 Mult.: 1	Headers	Locking	2 Position	2.5 mm (0.098 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Tin	7.5 mm (0.295 in)	3.4 mm (0.134 in)	5046	Mini-Latch/KK	Wire-to-Board, Signal		- 40 C	+ 105 C	Bulk
Headers & Wire Housings 6P RT ANGL PCB RECEP 22-16-2061 Molex 1: ¥448.5 1,233In Stock	Mfr. Part # 22-16-2061 Mouser Part # 538-22-16-2061	Molex	Headers & Wire Housings 6P RT ANGL PCB RECEP Learn More about Molex kk	Datasheet	1,233In Stock	¥448.5 ¥372.1 ¥358.8 ¥310.6 View ¥305.6 ¥289 ¥240.8 ¥237.5 ¥225.9	Min.: 1 Mult.: 1	Headers	Socket Assembly	6 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Right Angle	Socket (Female)	Gold		3.35 mm (0.132 in)	4455	KK	Board-to-Board, Signal		- 40 C	+ 80 C	Tray
Headers & Wire Housings 2.54MM BOARD CONN Top Entry 4 CKT 22-18-2041 Molex 1: ¥117.9 5,651In Stock	Mfr. Part # 22-18-2041 Mouser Part # 538-22-18-2041	Molex	Headers & Wire Housings 2.54MM BOARD CONN Top Entry 4 CKT Learn More about Molex kk	Datasheet	5,651In Stock	¥117.9 ¥100.5 ¥85.4 ¥58.1 View ¥53.2 ¥52	Min.: 1 Mult.: 1	Headers	Socket Assembly	4 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Socket (Female)	Gold		3.35 mm (0.132 in)	4455	KK	Board-to-Board, Signal		- 40 C	+ 80 C	Tray
Headers & Wire Housings KK 100 Hdr FrLk Vert 6Ckt(4 Void)Tin 22-23-2069 Molex 1: ¥53.2 14,055In Stock	Mfr. Part # 22-23-2069 Mouser Part # 538-22-23-2069	Molex	Headers & Wire Housings KK 100 Hdr FrLk Vert 6Ckt(4 Void)Tin	Datasheet	14,055In Stock	¥53.2 ¥45.3 ¥40 ¥34.7 View ¥24.9 ¥24.3 ¥20.4 ¥17.1	Min.: 1 Mult.: 1	Headers	Locking	6 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	7.49 mm (0.295 in)	3.56 mm (0.14 in)	6373	KK	Wire-to-Board, Signal		- 40 C	+ 80 C
Headers & Wire Housings .100 KK HEADER 22-23-2171 Molex 1: ¥184.4 8,700In Stock	Mfr. Part # 22-23-2171 Mouser Part # 538-22-23-2171	Molex	Headers & Wire Housings .100 KK HEADER Learn More about Molex kk	Datasheet	8,700In Stock	¥184.4 ¥158.5 ¥157.5 ¥141 View ¥140.4 ¥127.2 ¥115.3 ¥113.4 ¥97	Min.: 1 Mult.: 1	Headers	Locking	17 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	7.49 mm (0.295 in)	3.56 mm (0.14 in)	6373	KK	Wire-to-Board, Signal		- 40 C	+ 80 C	Bulk
Headers & Wire Housings BRKAWY HDR VERT 2P 22-28-4022 Molex 1: ¥38.2 76,830In Stock	Mfr. Part # 22-28-4022 Mouser Part # 538-22-28-4022	Molex	Headers & Wire Housings BRKAWY HDR VERT 2P Learn More about Molex kk	Datasheet	76,830In Stock	¥38.2 ¥29.2 ¥24.3 ¥21.6 View ¥14.9 ¥14.3 ¥12 ¥11.1 ¥10	Min.: 1 Mult.: 1	Headers	Breakaway	2 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	7.49 mm (0.295 in)	3.05 mm (0.12 in)	42375	KK	Board-to-Board, Wire-to-Board, Signal		- 40 C	+ 80 C	Bulk
Headers & Wire Housings 2.54MM BREAKAWAY Vertical 14 CKT Tin 22-28-4140 Molex 1: ¥151.2 18,008In Stock	Mfr. Part # 22-28-4140 Mouser Part # 538-22-28-4140	Molex	Headers & Wire Housings 2.54MM BREAKAWAY Vertical 14 CKT Tin Learn More about Molex kk	Datasheet	18,008In Stock	¥151.2 ¥127.7 ¥120.9 ¥108.5 View ¥96.7 ¥87.4 ¥81.9 ¥78.1 ¥62.1	Min.: 1 Mult.: 1	Headers	Breakaway	14 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	6.09 mm (0.24 in)	3.18 mm (0.125 in)	42375	KK	Board-to-Board, Wire-to-Board, Signal		- 40 C	+ 80 C	Bulk
Headers & Wire Housings KK 100 Hdr Assy Bkwy Bkwy 15 Ckt 15 SGold 22-28-4153 Molex 1: ¥270.7 3,201In Stock	Mfr. Part # 22-28-4153 Mouser Part # 538-22-28-4153	Molex	Headers & Wire Housings KK 100 Hdr Assy Bkwy Bkwy 15 Ckt 15 SGold Learn More about Molex kk	Datasheet	3,201In Stock	¥270.7 ¥265.8 ¥262.4 ¥257.5 View ¥250.8 ¥171.1 ¥166.1	Min.: 1 Mult.: 1	Headers	Breakaway	15 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Gold	6.09 mm (0.24 in)	3.18 mm (0.125 in)	42375	KK	Board-to-Board, Wire-to-Board, Signal		- 40 C	+ 80 C	Bulk
Headers & Wire Housings 2.54MM BREAKAWAY Vertical 20 CKT Gold 22-28-4204 Molex 1: ¥327.2 2,471In Stock	Mfr. Part # 22-28-4204 Mouser Part # 538-22-28-4204	Molex	Headers & Wire Housings 2.54MM BREAKAWAY Vertical 20 CKT Gold Learn More about Molex kk	Datasheet	2,471In Stock	¥327.2 ¥304 ¥282.4 ¥269.1 View ¥267.4 ¥257.5	Min.: 1 Mult.: 1	Headers	Breakaway	20 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Gold	8.13 mm (0.32 in)	3.05 mm (0.12 in)	42375	KK	Board-to-Board, Wire-to-Board, Signal		- 40 C	+ 80 C	Bulk
Headers & Wire Housings 36P 1 ROW VERT HDR 22-28-4362 Molex 1: ¥265.8 4,963In Stock	Mfr. Part # 22-28-4362 Mouser Part # 538-22-28-4362	Molex	Headers & Wire Housings 36P 1 ROW VERT HDR Learn More about Molex kk	Datasheet	4,963In Stock	¥265.8 ¥242.5 ¥240.8 ¥209.3 View ¥199.3 ¥189.4 ¥171.1 ¥161.1	Min.: 1 Mult.: 1	Headers	Breakaway	36 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	7.49 mm (0.295 in)	3.05 mm (0.12 in)	42375	KK	Board-to-Board, Wire-to-Board, Signal		- 40 C	+ 80 C	Bulk
Headers & Wire Housings KK 100 Hdr Assy Bkwy Assy Bkwy 03 Ckt Tin 22-28-5032 Molex 1: ¥43.2 18,407In Stock	Mfr. Part # 22-28-5032 Mouser Part # 538-22-28-5032	Molex	Headers & Wire Housings KK 100 Hdr Assy Bkwy Assy Bkwy 03 Ckt Tin Learn More about Molex kk	Datasheet	18,407In Stock	¥43.2 ¥35.9 ¥31.7 ¥27.6 View ¥24.4 ¥20.3 ¥18.9 ¥18.4 ¥13.3	Min.: 1 Mult.: 1	Headers	Breakaway	3 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	7.49 mm (0.295 in)	3.43 mm (0.135 in)	42375	KK	Board-to-Board, Wire-to-Board, Signal		- 40 C	+ 80 C	Bulk
Headers & Wire Housings 2.54MM HDR RA 3P 052/120 SN 22-28-6030 Molex 1: ¥33.2 59,687In Stock	Mfr. Part # 22-28-6030 Mouser Part # 538-22-28-6030	Molex	Headers & Wire Housings 2.54MM HDR RA 3P 052/120 SN Learn More about Molex kk	Datasheet	59,687In Stock	¥33.2 ¥28.1 ¥23.9 ¥21.4 View ¥20.4 ¥18.6	Min.: 1 Mult.: 1	Headers	Breakaway	3 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Tin			42376	KK	Board-to-Board, Wire-to-Board, Signal		- 40 C	+ 80 C	Bulk
Headers & Wire Housings 2.54MM BREAKAWAY RA 3 CKT Gold 22-28-8032 Molex 1: ¥59.8 30,692In Stock	Mfr. Part # 22-28-8032 Mouser Part # 538-22-28-8032	Molex	Headers & Wire Housings 2.54MM BREAKAWAY RA 3 CKT Gold Learn More about Molex kk	Datasheet	30,692In Stock	¥59.8 ¥52 ¥50.7 ¥45.8 View ¥34.4 ¥31.6 ¥31.1 ¥29.9 ¥28.2	Min.: 1 Mult.: 1	Headers	Breakaway	3 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Gold			42377	KK	Board-to-Board, Wire-to-Board, Signal		- 40 C	+ 80 C	Bulk
Headers & Wire Housings 2.54MM BREAKAWAY RA 9 CKT Gold 22-28-8093 Molex 1: ¥149.5 3,597In Stock	Mfr. Part # 22-28-8093 Mouser Part # 538-22-28-8093	Molex	Headers & Wire Housings 2.54MM BREAKAWAY RA 9 CKT Gold Learn More about Molex kk	Datasheet	3,597In Stock	¥149.5 ¥125.6 ¥120.6 ¥112.9 View ¥102.6 ¥92.4 ¥84 ¥78.7 ¥77.1	Min.: 1 Mult.: 1	Headers	Breakaway	9 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Gold	8.23 mm (0.324 in)	3.05 mm (0.12 in)	42377	KK