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	Minimum Operating Temperature	Maximum Operating Temperature	Packaging
Headers & Wire Housings KK 156 PCB Assy Top 04 Ckts Tin 09-48-2043 Molex 1: ¥151.2 2,980In Stock	Mfr. Part # 09-48-2043 Mouser Part # 538-09-48-2043	Molex	Headers & Wire Housings KK 156 PCB Assy Top 04 Ckts Tin Learn More about Molex kk	Datasheet	2,980In Stock	¥151.2 ¥128.1 ¥122.7 ¥77.7 View ¥76.9 ¥74.2 ¥71.6 ¥71.4	Min.: 1 Mult.: 1	Headers	Receptacle	4 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 PCB CONNECTO 09-48-4059 Molex 1: ¥162.8 1,885In Stock	Mfr. Part # 09-48-4059 Mouser Part # 538-09-48-4059	Molex	Headers & Wire Housings .156 KK PCB CONNECTO Learn More about Molex kk	Datasheet	1,885In Stock	¥162.8 ¥136.9 ¥126.4 ¥119.3 View ¥114.9 ¥99.5 ¥92.4	Min.: 1 Mult.: 1	Headers	Socket Assembly	5 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Bottom Entry	Socket (Female)	Tin			41815	KK				Tray
Headers & Wire Housings HSG 5P W/O LKG RAMP 09-50-7051 Molex 1: ¥26.6 17,260In Stock	Mfr. Part # 09-50-7051 Mouser Part # 538-09-50-7051	Molex	Headers & Wire Housings HSG 5P W/O LKG RAMP Learn More about Molex kk	Datasheet	17,260In Stock	¥26.6 ¥22.8 ¥19.3 ¥16.1 View ¥12 ¥11.6 ¥10.5 ¥10.1 ¥9.5	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	5 Position	3.96 mm (0.156 in)	1 Row	Cable Mount / Free Hanging	Crimp		Socket (Female)				2139	KK				Bulk
Headers & Wire Housings 5CKT CRMP TRM HOUSE 09-50-8050 Molex 1: ¥33.2 14,945In Stock	Mfr. Part # 09-50-8050 Mouser Part # 538-09-50-8050	Molex	Headers & Wire Housings 5CKT CRMP TRM HOUSE Learn More about Molex kk	Datasheet	14,945In Stock	¥33.2 ¥28.1 ¥25.2 ¥23.9 View ¥19.3 ¥19.1 ¥18.9	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	5 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 KK RPC 254 Hdr FrLk R/A 07 Ckt 15Au T&R 171857-4007 Molex 1: ¥397 1,608In Stock	Mfr. Part # 171857-4007 Mouser Part # 538-171857-4007	Molex	Headers & Wire Housings KK RPC 254 Hdr FrLk R/A 07 Ckt 15Au T&R Learn More about Molex kk 254 rpc headers	Datasheet	1,608In Stock	Cut Tape ¥397 ¥345.5 ¥332.2 ¥308.9 Reel ¥210.9 View ¥280.7 ¥257.5 ¥232.5 ¥189.4	Min.: 1 Mult.: 1 : 2,700	Headers	Locking	7 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Gold		2.54 mm (0.1 in)	171857	KK	Wire-to-Board	- 40 C	+ 105 C	Reel, Cut Tape
Headers & Wire Housings 3 Circuit Friction Lock Solid Body KK100 Header Assembly 22-04-5032 Molex 1: ¥49.8 9,673In Stock	Mfr. Part # 22-04-5032 Mouser Part # 538-22-04-5032	Molex	Headers & Wire Housings 3 Circuit Friction Lock Solid Body KK100 Header Assembly Learn More about Molex kk	Datasheet	9,673In Stock	¥49.8 ¥41.9 ¥37 ¥32.1 View ¥17.9 ¥17.3 ¥17.1	Min.: 1 Mult.: 1	Headers	Locking	3 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	7.49 mm (0.295 in)	3.56 mm (0.14 in)	6373	KK		- 40 C	+ 80 C
Headers & Wire Housings 13 CKT R/A HEADER 22-05-2131 Molex 1: ¥184.4 3,965In Stock	Mfr. Part # 22-05-2131 Mouser Part # 538-22-05-2131	Molex	Headers & Wire Housings 13 CKT R/A HEADER Learn More about Molex kk	Datasheet	3,965In Stock	¥184.4 ¥157 ¥156.8 ¥133.4 View ¥133.2 ¥113.4 ¥110 ¥105.5 ¥95.8	Min.: 1 Mult.: 1	Headers	Pin Strip	13 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Tin			4094	KK				Bulk
Headers & Wire Housings KK 100 HDR FRLK RTAN 28 CKT TIN 22-05-3281 Molex 1: ¥310.6 1,616In Stock	Mfr. Part # 22-05-3281 Mouser Part # 538-22-05-3281	Molex	Headers & Wire Housings KK 100 HDR FRLK RTAN 28 CKT TIN Learn More about Molex kk	Datasheet	1,616In Stock	¥310.6 ¥270.7 ¥259.1 ¥242.5 View ¥219.3 ¥202.6 ¥187.7 ¥169.4 ¥165.1	Min.: 1 Mult.: 1	Headers	Locking	28 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Tin	6.71 mm (0.264 in)	3.58 mm (0.141 in)	7478	KK	Wire-to-Board, Signal	- 40 C	+ 80 C	Bulk
Headers & Wire Housings KK 100 PCB Assy RtAn 02 Ckt Gold 22-16-2021 Molex 1: ¥154.5 1,885In Stock	Mfr. Part # 22-16-2021 Mouser Part # 538-22-16-2021	Molex	Headers & Wire Housings KK 100 PCB Assy RtAn 02 Ckt Gold Learn More about Molex kk	Datasheet	1,885In Stock	¥154.5 ¥130.4 ¥125.1 ¥117.1 View ¥106.5 ¥95.8 ¥87.2 ¥78.1 ¥77.6	Min.: 1 Mult.: 1	Headers	Socket Assembly	2 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 2 CKT 22-18-2021 Molex 1: ¥59.8 4,420In Stock	Mfr. Part # 22-18-2021 Mouser Part # 538-22-18-2021	Molex	Headers & Wire Housings 2.54MM BOARD CONN Top Entry 2 CKT Learn More about Molex kk	Datasheet	4,420In Stock	¥59.8 ¥50.3 ¥42.7 ¥38.2 View ¥36 ¥32.7 ¥27.9 ¥25.6	Min.: 1 Mult.: 1	Headers	Socket Assembly	2 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 2.54MM HDR VT 4P 295/120 SN 22-28-4042 Molex 1: ¥54.8 11,461In Stock	Mfr. Part # 22-28-4042 Mouser Part # 538-22-28-4042	Molex	Headers & Wire Housings 2.54MM HDR VT 4P 295/120 SN Learn More about Molex kk	Datasheet	11,461In Stock	¥54.8 ¥46.8 ¥41.4 ¥35.9 View ¥31.7 ¥23.3 ¥22.9 ¥21.4 ¥19.9	Min.: 1 Mult.: 1	Headers	Breakaway	4 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 05 Ckt Tin 22-28-5051 Molex 1: ¥66.4 7,736In Stock	Mfr. Part # 22-28-5051 Mouser Part # 538-22-28-5051	Molex	Headers & Wire Housings KK 100 Hdr Assy Bkwy Assy Bkwy 05 Ckt Tin Learn More about Molex kk	Datasheet	7,736In Stock	¥66.4 ¥56.3 ¥49.5 ¥43.9 View ¥30.1 ¥29.9 ¥27.2 ¥27.1 ¥26.9	Min.: 1 Mult.: 1	Headers	Breakaway	5 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	8.13 mm (0.32 in)	3.43 mm (0.135 in)	42375	KK	Board-to-Board, Wire-to-Board, Signal	- 40 C	+ 80 C	Bulk
Headers & Wire Housings KK 100 Hdr Assy Bkwy Bkwy 06 Ckt 15 SGold 22-28-5063 Molex 1: ¥174.4 11,148In Stock	Mfr. Part # 22-28-5063 Mouser Part # 538-22-28-5063	Molex	Headers & Wire Housings KK 100 Hdr Assy Bkwy Bkwy 06 Ckt 15 SGold Learn More about Molex kk	Datasheet	11,148In Stock	¥174.4 ¥147.5 ¥125.4 ¥112 View ¥106.5 ¥100.2 ¥92.8	Min.: 1 Mult.: 1	Headers	Breakaway	6 Position	2.54 mm (0.1 in)	1 Row	Kinked Pin	Solder Pin	Straight	Pin (Male)	Gold	6.09 mm (0.24 in)	3.43 mm (0.135 in)	42375	KK				Bulk
Headers & Wire Housings KK 100 Hdr Assy RA B Bkwy 28 Ckt 15 SGold 22-28-6283 Molex 1: ¥923.5 522In Stock	Mfr. Part # 22-28-6283 Mouser Part # 538-22-28-6283	Molex	Headers & Wire Housings KK 100 Hdr Assy RA B Bkwy 28 Ckt 15 SGold Learn More about Molex kk	Datasheet	522In Stock	¥923.5 ¥785.7 ¥784 ¥667.7 View ¥611.2 ¥594.6 ¥559.8 ¥558.1	Min.: 1 Mult.: 1	Headers	Breakaway	28 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Gold	10.29 mm (0.405 in)	3.05 mm (0.12 in)	42376	KK	Board-to-Board, Wire-to-Board, Signal	- 40 C	+ 80 C	Bulk
Headers & Wire Housings HEADER 22-28-8040 Molex 1: ¥56.5 11,354In Stock	Mfr. Part # 22-28-8040 Mouser Part # 538-22-28-8040	Molex	Headers & Wire Housings HEADER Learn More about Molex kk	Datasheet	11,354In Stock	¥56.5 ¥48.8 ¥44.3 ¥38.5 View ¥34.1 ¥27.4 ¥24.4 ¥23.9 ¥20.6	Min.: 1 Mult.: 1	Headers	Breakaway	4 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Tin			42377	KK	Board-to-Board, Wire-to-Board, Signal	- 40 C	+ 80 C	Bulk
Headers & Wire Housings KK 100 Hdr Assy Bkwy Assy Bkwy 09 Ckt Tin 22-30-3093 Molex 1: ¥94.7 3,387In Stock	Mfr. Part # 22-30-3093 Mouser Part # 538-22-30-3093	Molex	Headers & Wire Housings KK 100 Hdr Assy Bkwy Assy Bkwy 09 Ckt Tin Learn More about Molex kk	Datasheet	3,387In Stock	¥94.7 ¥82.2 ¥75.2 ¥67.8 View ¥62 ¥52.2 ¥49 ¥45.2 ¥43.7	Min.: 1 Mult.: 1	Headers	Breakaway	9 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	10.29 mm (0.405 in)	3.43 mm (0.135 in)	42375	KK
Headers & Wire Housings 3.96mm KK Hdr Vt RPi Hdr Vt RPin VrA 8Ckt 26-20-2081 Molex 1: ¥219.3 2,536In Stock	Mfr. Part # 26-20-2081 Mouser Part # 538-26-20-2081	Molex	Headers & Wire Housings 3.96mm KK Hdr Vt RPi Hdr Vt RPin VrA 8Ckt Learn More about Molex kk	Datasheet	2,536In Stock	¥219.3 ¥192.7 ¥181 ¥176.1 View ¥147.8 ¥139.7 ¥136.7 ¥123.9	Min.: 1 Mult.: 1	Headers	Pin Strip	8 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	11.43 mm (0.45 in)	4.45 mm (0.175 in)	3192	KK	Board-to-Board, Wire-to-Board, Power	- 40 C	+ 80 C	Bulk
Headers & Wire Housings 156 Bkwy 7 CKT 26-48-2071 Molex 1: ¥617.9 1,781In Stock	Mfr. Part # 26-48-2071 Mouser Part # 538-26-48-2071	Molex	Headers & Wire Housings 156 Bkwy 7 CKT Learn More about Molex kk	Datasheet	1,781In Stock	¥617.9 ¥561.4 ¥533.2 ¥495 View ¥433.5 ¥420.2 ¥315.6 ¥313.9	Min.: 1 Mult.: 1	Headers	Breakaway	7 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Gold			41661	KK	Wire-to-Board, Power	- 40 C	+ 80 C	Bulk
Headers & Wire Housings 9P HEADER GOLD 26-48-2096 Molex 1: ¥686 525In Stock	Mfr. Part # 26-48-2096 Mouser Part # 538-26-48-2096	Molex	Headers & Wire Housings 9P HEADER GOLD Learn More about Molex kk	Datasheet	525In Stock	¥686 ¥677.7 ¥672.7 ¥669.4 View ¥664.4 ¥611.2 ¥594.6 ¥506.6 ¥496.6	Min.: 1 Mult.: 1	Headers	Breakaway	9 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Gold			41672	KK	Wire-to-Board, Power	- 40 C	+ 80 C	Bulk
Headers & Wire Housings 10P HEADER GOLD 26-48-2106 Molex 1: ¥752.4 751In Stock	Mfr. Part # 26-48-2106 Mouser Part # 538-26-48-2106	Molex	Headers & Wire Housings 10P HEADER GOLD Learn More about Molex kk	Datasheet	751In Stock	¥752.4 ¥742.5 ¥735.8 ¥732.5 View ¥727.5 ¥676 ¥656.1 ¥578 ¥541.5	Min.: 1 Mult.: 1	Headers	Breakaway	10 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Gold	11.43 mm (0.45 in)	5.38 mm (0.212 in)	41672	KK	Wire-to-Board, Power	- 40 C	+ 80 C	Bulk
Headers & Wire Housings KK 156 Hdr Assy Flat Flat Bkwy 24 ckt Tin 26-58-0240 Molex 1: ¥588 1,131In Stock	Mfr. Part # 26-58-0240 Mouser Part # 538-26-58-0240	Molex	Headers & Wire Housings KK 156 Hdr Assy Flat Flat Bkwy 24 ckt Tin Learn More about Molex kk	Datasheet	1,131In Stock	¥588 ¥534.8 ¥506.6 ¥471.7 View ¥411.9 ¥398.6 ¥300.6 ¥297.3	Min.: 1 Mult.: 1	Headers	Unshrouded	24 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin			41661	KK	Board-to-Board, Wire-to-Board, Signal	- 40 C	+ 80 C	Bulk
Headers & Wire Housings KK 156 Hdr FrLk Peg 05 Ckt Tin 27-62-4052 Molex 1: ¥48.2 5,042In Stock	Mfr. Part # 27-62-4052 Mouser Part # 538-27-62-4052	Molex	Headers & Wire Housings KK 156 Hdr FrLk Peg 05 Ckt Tin Learn More about Molex kk	Datasheet	5,042In Stock	¥48.2 ¥46.2 ¥45.3 ¥44.3 View ¥43.7 ¥42.2 ¥39.5 ¥38.2	Min.: 1 Mult.: 1	Headers	Locking	5 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
Headers & Wire Housings 2.54 MM KK PCB CONN 16CKT 38-00-1406 Molex 1: ¥666.1 908In Stock	Mfr. Part # 38-00-1406 Mouser Part # 538-38-00-1406	Molex	Headers & Wire Housings 2.54 MM KK PCB CONN 16CKT Learn More about Molex kk	Datasheet	908In Stock	¥666.1 ¥485 ¥456.8 ¥410.3 View ¥405.3 ¥388.7 ¥387 ¥382	Min.: 1 Mult.: 1	Headers	Socket Assembly	16 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Bottom Entry	Socket (Female)	Tin		3.3 mm (0.13 in)	4455	KK	Board-to-Board, Signal	- 40 C	+ 105 C	Tray
Headers & Wire Housings KK 156 Hdr Assy FrLk k Bkwy 10 ckt 15 SAu 41671-0009 Molex 1: ¥480 1,345In Stock	Mfr. Part # 41671-0009 Mouser Part # 538-41671-0009	Molex	Headers & Wire Housings KK 156 Hdr Assy FrLk k Bkwy 10 ckt 15 SAu Learn More about Molex kk	Datasheet	1,345In Stock	¥480 ¥433.5 ¥410.3 ¥378.7 View ¥377 ¥362.1 ¥358.8 ¥345.5	Min.: 1 Mult.: 1	Headers	Breakaway	10 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 KK 156 Hdr Assy FrLk k Bkwy 04 ckt 30 SAu 41671-0026 Molex 1: ¥320.6 2,888In Stock	Mfr. Part # 41671-0026 Mouser Part # 538-41671-0026	Molex	Headers & Wire Housings KK 156 Hdr Assy FrLk k Bkwy 04 ckt 30 SAu Learn More about Molex kk	Datasheet	2,888In Stock	¥320.6 ¥279 ¥267.4 ¥249.2 View ¥225.9 ¥207.6 ¥184.4 ¥174.4 ¥165.8	Min.: 1 Mult.: 1	Headers	Breakaway	4 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