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 2.54MM HDR VT 6P 295/120 SN 22-28-4062 Molex 1: ¥76.4 16,921In Stock	Mfr. Part # 22-28-4062 Mouser Part # 538-22-28-4062	Molex	Headers & Wire Housings 2.54MM HDR VT 6P 295/120 SN Learn More about Molex kk	Datasheet	16,921In Stock	¥76.4 ¥64.9 ¥57 ¥50.5 View ¥45.3 ¥37 ¥34.7 ¥31.6 ¥27.6	Min.: 1 Mult.: 1	Headers	Breakaway	6 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	7.49 mm (0.295 in)	3.05 mm (0.12 in)	42375	KK					Bulk
Headers & Wire Housings 7P VERT HEADER Sn 22-28-4070 Molex 1: ¥66.4 48,301In Stock	Mfr. Part # 22-28-4070 Mouser Part # 538-22-28-4070	Molex	Headers & Wire Housings 7P VERT HEADER Sn Learn More about Molex kk	Datasheet	48,301In Stock	¥66.4 ¥58.1 ¥57 ¥51 View ¥43.2 ¥42.9 ¥35.2 ¥32.1 ¥31.6	Min.: 1 Mult.: 1	Headers	Breakaway	7 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	6.09 mm (0.24 in)		42375	KK	Board-to-Board, Wire-to-Board, Signal		- 40 C	+ 80 C	Bulk
Headers & Wire Housings KK 100 Hdr Assy Bkwy Bkwy 02 Ckt 15 SGold 22-28-5024 Molex 1: ¥48.2 19,176In Stock	Mfr. Part # 22-28-5024 Mouser Part # 538-22-28-5024	Molex	Headers & Wire Housings KK 100 Hdr Assy Bkwy Bkwy 02 Ckt 15 SGold Learn More about Molex kk	Datasheet	19,176In Stock	¥48.2 ¥42.4 ¥41 ¥37.4 View ¥33.7 ¥26.2	Min.: 1 Mult.: 1	Headers	Breakaway	2 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Gold			42375	KK	Board-to-Board, Wire-to-Board, Signal		- 40 C	+ 80 C	Bulk
Headers & Wire Housings BKWY HDR R/A 16P tin 22-28-8160 Molex 1: ¥204.3 6,429In Stock	Mfr. Part # 22-28-8160 Mouser Part # 538-22-28-8160	Molex	Headers & Wire Housings BKWY HDR R/A 16P tin Learn More about Molex kk	Datasheet	6,429In Stock	¥204.3 ¥174.4 ¥169.4 ¥147.5 View ¥143.2 ¥128.9 ¥114.3 ¥108.3 ¥89.2	Min.: 1 Mult.: 1	Headers	Breakaway	16 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Tin			42377	KK					Bulk
Headers & Wire Housings BREAKAWAY HEADER square pin 26-48-2095 Molex 1: ¥642.8 1,100In Stock	Mfr. Part # 26-48-2095 Mouser Part # 538-26-48-2095	Molex	Headers & Wire Housings BREAKAWAY HEADER square pin Learn More about Molex kk	Datasheet	1,100In Stock	¥642.8 ¥584.7 ¥553.1 ¥514.9 View ¥450.1 ¥438.5 ¥342.2 ¥340.5 ¥333.9	Min.: 1 Mult.: 1	Headers	Breakaway	9 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
Headers & Wire Housings VERT PCB HDR 7P TIN FRICTION LOCK 26-60-4070 Molex 1: ¥124.6 10,647In Stock 590Expected 10/19/2026	Mfr. Part # 26-60-4070 Mouser Part # 538-26-60-4070	Molex	Headers & Wire Housings VERT PCB HDR 7P TIN FRICTION LOCK Learn More about Molex kk	Datasheet	10,647In Stock 590Expected 10/19/2026	¥124.6 ¥108.6 ¥96.2 ¥86.2 View ¥78.4 ¥69.4 ¥67.8 ¥64.8 ¥63.5	Min.: 1 Mult.: 1	Headers	Shrouded	7 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin			41791	KK	Wire-to-Board, Power		- 40 C	+ 80 C	Bulk
Headers & Wire Housings .156 KK HEADER 26-61-4140 Molex 1: ¥905.2 1,325In Stock	Mfr. Part # 26-61-4140 Mouser Part # 538-26-61-4140	Molex	Headers & Wire Housings .156 KK HEADER Learn More about Molex kk	Datasheet	1,325In Stock	¥905.2 ¥715.9 ¥710.9 ¥709.2 ¥684.3	Min.: 1 Mult.: 1	Headers	Locking	14 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 156 Hdr FrLk 4Ckt w/Ckt 2 Voided Tin 26-62-4040 Molex 1: ¥66.4 33,359In Stock	Mfr. Part # 26-62-4040 Mouser Part # 538-26-62-4040	Molex	Headers & Wire Housings KK 156 Hdr FrLk 4Ckt w/Ckt 2 Voided Tin Learn More about Molex kk	Datasheet	33,359In Stock	¥66.4 ¥56 ¥55.3 ¥48.2 View ¥42 ¥40.2 ¥36.5 ¥35.4 ¥34.5	Min.: 1 Mult.: 1	Headers	Locking	4 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	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 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 156 PCB Bottom 4Ckt No Ramp 41815-0329 Molex 1: ¥112.9 200In Stock	Mfr. Part # 41815-0329 Mouser Part # 538-41815-0329	Molex	Headers & Wire Housings KK 156 PCB Bottom 4Ckt No Ramp	Datasheet	200In Stock	¥112.9 ¥98.5 ¥90 ¥81.2 View ¥74.2 ¥61.5 ¥52.7 ¥50 ¥49.2	Min.: 1 Mult.: 1	Headers	Socket Assembly		3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Straight	Socket (Female)	Tin			41815	KK			- 40 C	+ 105 C
Headers & Wire Housings RA FRICTION LK 13 solid header 26-60-5130 Molex 1: ¥250.8 693In Stock	Mfr. Part # 26-60-5130 Mouser Part # 538-26-60-5130	Molex	Headers & Wire Housings RA FRICTION LK 13 solid header Learn More about Molex kk	Datasheet	693In Stock	¥250.8 ¥219.3 ¥209.3 ¥196 View ¥177.7 ¥162.4 ¥149.8 ¥140.5 ¥137.7	Min.: 1 Mult.: 1	Headers	Locking	13 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Tin	11.43 mm (0.45 in)	3.96 mm (0.156 in)	41792	KK	Wire-to-Board, Power		- 40 C	+ 80 C	Bulk
Headers & Wire Housings 2.54MM SRSW TH W/O CAP 6CKT 87891-0606 Molex 1: ¥144.5 3,522In Stock	Mfr. Part # 87891-0606 Mouser Part # 538-87891-0606	Molex	Headers & Wire Housings 2.54MM SRSW TH W/O CAP 6CKT	Datasheet	3,522In Stock	¥144.5 ¥124.7 ¥114.1 ¥102.8 View ¥94 ¥77.7 ¥72.8 ¥62.1 ¥61.5	Min.: 1 Mult.: 1	Headers	Breakaway	6 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	5.84 mm (0.23 in)	2.97 mm (0.117 in)	87891	KK	Board-to-Board, Wire-to-Board, Signal		- 55 C	+ 105 C	Tray
Headers & Wire Housings KK 156 PCB Assy Top 06 Ckts Tin 09-48-2063 Molex 1: ¥247.5 777In Stock	Mfr. Part # 09-48-2063 Mouser Part # 538-09-48-2063	Molex	Headers & Wire Housings KK 156 PCB Assy Top 06 Ckts Tin Learn More about Molex kk	Datasheet	777In Stock	¥247.5 ¥127.7 ¥123.7 ¥121.1	Min.: 1 Mult.: 1	Headers	Receptacle	6 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Straight	Socket (Female)	Tin		3.05 mm (0.12 in)	41815	KK			- 40 C	+ 80 C
Headers & Wire Housings .156 KK HEADER 26-64-5050 Molex 1: ¥162.8 1,677In Stock	Mfr. Part # 26-64-5050 Mouser Part # 538-26-64-5050	Molex	Headers & Wire Housings .156 KK HEADER Learn More about Molex kk	Datasheet	1,677In Stock	¥162.8 ¥90.4 ¥78.1 ¥76.4	Min.: 1 Mult.: 1	Headers	Locking	5 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Tin	11.43 mm (0.45 in)	3.96 mm (0.156 in)	42492	KK	Wire-to-Board, Power		- 40 C	+ 80 C	Bulk
Headers & Wire Housings KK 156 Crimp Housing Housing Ramp 16 Ckt 26-03-4161 Molex 1: ¥101.3 3,544In Stock	Mfr. Part # 26-03-4161 Mouser Part # 538-26-03-4161	Molex	Headers & Wire Housings KK 156 Crimp Housing Housing Ramp 16 Ckt Learn More about Molex kk	Datasheet	3,544In Stock	¥101.3 ¥100 ¥99.8 ¥32.9	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	16 Position	3.96 mm (0.156 in)	1 Row	Cable Mount / Free Hanging	Crimp	Straight	Socket (Female)				6442	KK	Wire-to-Board, Power		- 40 C	+ 80 C	Bulk
Headers & Wire Housings R/A B/A HDR 7P TIN SQUARE PIN 26-48-1072 Molex 1: ¥189.4 3,000In Stock	Mfr. Part # 26-48-1072 Mouser Part # 538-26-48-1072	Molex	Headers & Wire Housings R/A B/A HDR 7P TIN SQUARE PIN Learn More about Molex kk	Datasheet	3,000In Stock	¥189.4 ¥179.4 ¥163.1 ¥146.7 View ¥133.5 ¥125.1 ¥93.8	Min.: 1 Mult.: 1	Headers	Breakaway	7 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Tin	14.55 mm (0.573 in)	4.95 mm (0.195 in)	41662	KK					Bulk
Headers & Wire Housings CRIMP TERM 18-22AWG 08-52-0131 Molex 7,000: ¥11.6 14,000In Stock	Mfr. Part # 08-52-0131 Mouser Part # 538-08-52-0131	Molex	Headers & Wire Housings CRIMP TERM 18-22AWG Learn More about Molex kk	Datasheet	14,000In Stock	Reel ¥11.6 ¥11.1	Min.: 7,000 Mult.: 7,000 : 7,000	Contacts					Cable Mount / Free Hanging	Crimp		Socket (Female)	Tin			8818	KK		22 AWG to 18 AWG	- 40 C	+ 105 C	Reel
Headers & Wire Housings 9P TERM HOUSING 09-50-7091 Molex 1: ¥39.9 11,320In Stock	Mfr. Part # 09-50-7091 Mouser Part # 538-09-50-7091	Molex	Headers & Wire Housings 9P TERM HOUSING Learn More about Molex kk	Datasheet	11,320In Stock	¥39.9 ¥35 ¥34.9	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	9 Position	3.96 mm (0.156 in)	1 Row	Cable Mount / Free Hanging	Crimp		Socket (Female)				2139	KK					Bulk
Headers & Wire Housings HOUSING 20 POSITION 09-50-7201 Molex 1: ¥84.7 6,093In Stock	Mfr. Part # 09-50-7201 Mouser Part # 538-09-50-7201	Molex	Headers & Wire Housings HOUSING 20 POSITION Learn More about Molex kk	Datasheet	6,093In Stock	¥84.7 ¥84.2 ¥38.9	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	20 Position	3.96 mm (0.156 in)	1 Row	Cable Mount / Free Hanging	Crimp		Socket (Female)				2139	KK					Bulk
Headers & Wire Housings HDR STRT RND PIN 5P 10-08-1051 Molex 1: ¥111.3 2,570In Stock	Mfr. Part # 10-08-1051 Mouser Part # 538-10-08-1051	Molex	Headers & Wire Housings HDR STRT RND PIN 5P Learn More about Molex kk	Datasheet	2,570In Stock	¥111.3 ¥94.7 ¥92.2 ¥66.1 View ¥62.1 ¥60.8 ¥58	Min.: 1 Mult.: 1	Headers	Unshrouded	5 Position	5.08 mm (0.2 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin			3003	KK					Bulk
Headers & Wire Housings 6CKT RA PCB CONN 22-16-2060 Molex 1: ¥214.3 1,643In Stock	Mfr. Part # 22-16-2060 Mouser Part # 538-22-16-2060	Molex	Headers & Wire Housings 6CKT RA PCB CONN Learn More about Molex kk	Datasheet	1,643In Stock	¥214.3 ¥181 ¥131.6 ¥129.4 View ¥118.4 ¥110.5 ¥110.1 ¥99.2	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 BREAKAWAY RA 16 CKT Gold 22-28-8163 Molex 1: ¥332.2 1,763In Stock	Mfr. Part # 22-28-8163 Mouser Part # 538-22-28-8163	Molex	Headers & Wire Housings 2.54MM BREAKAWAY RA 16 CKT Gold Learn More about Molex kk	Datasheet	1,763In Stock	¥332.2 ¥327.2 ¥320.6 ¥308.9 View ¥305.6 ¥280.7 ¥264.1 ¥245.8	Min.: 1 Mult.: 1	Headers	Breakaway	16 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	Board-to-Board, Wire-to-Board, Signal		- 40 C	+ 80 C	Bulk
Headers & Wire Housings RA FRICTION LK HDR 3 with snap in pegs 26-60-7030 Molex 1: ¥86.4 1,829In Stock	Mfr. Part # 26-60-7030 Mouser Part # 538-26-60-7030	Molex	Headers & Wire Housings RA FRICTION LK HDR 3 with snap in pegs Learn More about Molex kk	Datasheet	1,829In Stock	¥86.4 ¥73.7 ¥66.4 ¥62.3	Min.: 1 Mult.: 1	Headers	Locking	3 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Tin	11.43 mm (0.45 in)	3.3 mm (0.13 in)	42892	KK	Wire-to-Board, Power		- 40 C	+ 80 C	Bulk
Headers & Wire Housings .156 KK HEADER 26-64-4090 Molex 1: ¥259.1 1,099In Stock	Mfr. Part # 26-64-4090 Mouser Part # 538-26-64-4090	Molex	Headers & Wire Housings .156 KK HEADER Learn More about Molex kk	Datasheet	1,099In Stock	¥259.1 ¥219.3 ¥184.4 ¥171.1 View ¥167.8 ¥159.1 ¥140.5 ¥138.5	Min.: 1 Mult.: 1	Headers	Locking	9 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	11.43 mm (0.45 in)	3.56 mm (0.14 in)	42491	KK	Wire-to-Board, Power		- 40 C	+ 80 C	Bulk