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 (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 254 Breakaway Header, Vert., 4 Pos., 0.38 m Gold (Au) Pltg, Mating Pin Lg. 8.13mm, Bag 22-28-4044 Molex 1: 0,525 € 45.757In Stock	Mfr. Part No. 22-28-4044 Mouser Part No 538-22-28-4044	Molex	Headers & Wire Housings KK 254 Breakaway Header, Vert., 4 Pos., 0.38 m Gold (Au) Pltg, Mating Pin Lg. 8.13mm, Bag Learn More about Molex kk	Datasheet	45.757In Stock	0,525 € 0,463 € 0,444 € 0,402 € View 0,362 € 0,324 € 0,288 € 0,286 €	Min.: 1 Mult.: 1	Headers	Breakaway	4 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Gold		3.05 mm (0.12 in)	42375	KK	Board-to-Board, Wire-to-Board, Signal		- 40 C	+ 80 C	Bulk
Headers & Wire Housings KK 254 Breakaway Header, Vert., 6 Pos., 0.76 m Gold (Au) Pltg, Mating Pin Lg. 8.13mm, Bag 22-28-4067 Molex 1: 1,36 € 23.863In Stock	Mfr. Part No. 22-28-4067 Mouser Part No 538-22-28-4067	Molex	Headers & Wire Housings KK 254 Breakaway Header, Vert., 6 Pos., 0.76 m Gold (Au) Pltg, Mating Pin Lg. 8.13mm, Bag Learn More about Molex kk	Datasheet	23.863In Stock	1,36 € 1,22 € 1,20 € 1,11 € View 1,07 € 0,989 € 0,937 € 0,92 € 0,798 €	Min.: 1 Mult.: 1	Headers	Breakaway	6 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 KK 254 Breakaway Header, R/A SMT Compatible, 4 Pos., 0.38 m Gold (Au) Pltg, Mating Pin Lg. 6.2mm, Bag 22-28-8042 Molex 1: 0,464 € 68.507In Stock	Mfr. Part No. 22-28-8042 Mouser Part No 538-22-28-8042	Molex	Headers & Wire Housings KK 254 Breakaway Header, R/A SMT Compatible, 4 Pos., 0.38 m Gold (Au) Pltg, Mating Pin Lg. 6.2mm, Bag Learn More about Molex kk	Datasheet	68.507In Stock	0,464 € 0,415 € 0,388 € 0,358 € View 0,335 € 0,312 € 0,311 €	Min.: 1 Mult.: 1	Headers	Breakaway	4 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Gold	6.2 mm (0.244 in)	3.05 mm (0.12 in)	42377	KK	Board-to-Board, Wire-to-Board, Signal		- 40 C	+ 80 C	Bulk
Headers & Wire Housings KK 254 PCB Header, TH, Breakaway, Vert., 1 Circuit, Gold (Au) Flash Pltg, Tray Packaging, Lead-free 87891-0101 Molex 1: 0,447 € 7.912In Stock	Mfr. Part No. 87891-0101 Mouser Part No 538-87891-0101	Molex	Headers & Wire Housings KK 254 PCB Header, TH, Breakaway, Vert., 1 Circuit, Gold (Au) Flash Pltg, Tray Packaging, Lead-free	Datasheet	7.912In Stock	0,447 € 0,383 € 0,35 € 0,316 € View 0,289 € 0,243 € 0,227 € 0,217 € 0,199 €	Min.: 1 Mult.: 1			1 Position	2.54 mm (0.1 in)	1 Row		Solder Pin	Straight		Gold			87891	KK			- 55 C	+ 105 C	Tray
Headers & Wire Housings KK 396 Crimp Terminal 2578, 26-22 AWG, Bag, Brass, 0.38 m Selective Gold(Au) 08-55-0106 Molex 1: 0,396 € 18.159In Stock	Mfr. Part No. 08-55-0106 Mouser Part No 538-08-55-0106	Molex	Headers & Wire Housings KK 396 Crimp Terminal 2578, 26-22 AWG, Bag, Brass, 0.38 m Selective Gold(Au) Learn More about Molex kk	Datasheet	18.159In Stock	0,396 € 0,334 € 0,298 € 0,284 € View 0,218 € 0,208 € 0,199 € 0,177 € 0,176 €	Min.: 1 Mult.: 1	Contacts					Cable Mount / Free Hanging	Crimp		Socket (Female)	Gold			2578	KK		26 AWG to 22 AWG	- 40 C	+ 85 C	Bulk
Headers & Wire Housings KK 396 PC Board Conn., R/A, w/ Ramp, Phosphor Bronze, 3.68mm Tail Lg., 1.52 m Matte Tin (Sn) Pltg, 6 Pos. 09-48-1064 Molex 1: 0,92 € 6.961In Stock	Mfr. Part No. 09-48-1064 Mouser Part No 538-09-48-1064	Molex	Headers & Wire Housings KK 396 PC Board Conn., R/A, w/ Ramp, Phosphor Bronze, 3.68mm Tail Lg., 1.52 m Matte Tin (Sn) Pltg, 6 Pos. Learn More about Molex kk	Datasheet	6.961In Stock	0,92 € 0,832 € 0,755 € 0,726 € 0,722 €	Min.: 1 Mult.: 1	Headers	Receptacle	6 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Right Angle	Socket (Female)	Tin			41815	KK			- 40 C	+ 105 C	Tray
Headers & Wire Housings SPOX and KK 396 Wire-to-Board Header, Vert., w/ Friction Lock, 3 Pos. 09-65-2038 Molex 1: 0,241 € 28.838In Stock	Mfr. Part No. 09-65-2038 Mouser Part No 538-09-65-2038	Molex	Headers & Wire Housings SPOX and KK 396 Wire-to-Board Header, Vert., w/ Friction Lock, 3 Pos.	Datasheet	28.838In Stock	0,241 € 0,207 € 0,196 € 0,171 € View 0,157 € 0,15 € 0,145 € 0,126 € 0,115 €	Min.: 1 Mult.: 1	Headers	Receptacle	3 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin			5273	KK, SPOX			- 40 C	+ 105 C	Bulk
Headers & Wire Housings KK 254 Wire-to-Board Header, R/A, w/ Friction Lock, 10 Pos. 22-05-7108 Molex 1: 0,774 € 8.697In Stock	Mfr. Part No. 22-05-7108 Mouser Part No 538-22-05-7108	Molex	Headers & Wire Housings KK 254 Wire-to-Board Header, R/A, w/ Friction Lock, 10 Pos. Learn More about Molex kk	Datasheet	8.697In Stock	0,774 € 0,659 € 0,632 € 0,627 € View 0,57 € 0,513 € 0,467 € 0,438 € 0,428 €	Min.: 1 Mult.: 1	Headers	Locking	10 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Tin	6.71 mm (0.264 in)	3.8 mm (0.15 in)	7395	KK	Wire-to-Board, Signal		- 40 C	+ 105 C	Bulk
Headers & Wire Housings KK 254 Breakaway Header, Vert., 30 Pos., Tin (Sn) Pltg, Mating Pin Lg. 6.09mm, Bag 22-28-4300 Molex 1: 1,36 € 6.078In Stock	Mfr. Part No. 22-28-4300 Mouser Part No 538-22-28-4300	Molex	Headers & Wire Housings KK 254 Breakaway Header, Vert., 30 Pos., Tin (Sn) Pltg, Mating Pin Lg. 6.09mm, Bag Learn More about Molex kk	Datasheet	6.078In Stock	1,36 € 1,29 € 1,24 € 0,912 € View 0,869 € 0,84 € 0,835 €	Min.: 1 Mult.: 1	Headers	Breakaway	30 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 396 Breakaway Header, Vert., 3 Pos., Matte Tin (Sn) Pltg, Pin Lg. 26.21mm (1.032") 26-58-0030 Molex 1: 0,275 € 7.617In Stock	Mfr. Part No. 26-58-0030 Mouser Part No 538-26-58-0030	Molex	Headers & Wire Housings KK 396 Breakaway Header, Vert., 3 Pos., Matte Tin (Sn) Pltg, Pin Lg. 26.21mm (1.032") Learn More about Molex kk	Datasheet	7.617In Stock	0,275 € 0,272 € 0,20 € 0,19 € 0,183 €	Min.: 1 Mult.: 1	Headers	Unshrouded	3 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	19.43 mm (0.765 in)	3.56 mm (0.14 in)	41661	KK	Board-to-Board, Wire-to-Board, Signal		- 40 C	+ 80 C	Bulk
Headers & Wire Housings KK 100 Housing Crimp Pol Ramp 6 Ckt 10-11-2064 Molex 1: 0,232 € 24.537In Stock	Mfr. Part No. 10-11-2064 Mouser Part No 538-10-11-2064	Molex	Headers & Wire Housings KK 100 Housing Crimp Pol Ramp 6 Ckt Learn More about Molex kk	Datasheet	24.537In Stock	0,232 € 0,20 € 0,179 € 0,17 € View 0,152 € 0,144 € 0,139 €	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	6 Position	2.54 mm (0.1 in)	1 Row	Cable Mount / Free Hanging	Crimp	Straight	Socket (Female)				7880	KK
Headers & Wire Housings KK 254 Crimp Housing, Friction Ramp, 12 Pos., Natural 22-01-2127 Molex 1: 0,335 € 52.765In Stock	Mfr. Part No. 22-01-2127 Mouser Part No 538-22-01-2127	Molex	Headers & Wire Housings KK 254 Crimp Housing, Friction Ramp, 12 Pos., Natural Learn More about Molex kk	Datasheet	52.765In Stock	0,335 € 0,289 € 0,255 € 0,234 € 0,233 €	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	12 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 KK 254 Solid Header, Vert., w/ Friction Lock, 17 Pos., 0.51 m Gold (Au) Pltg, 3.56mm Tail Lg., Bag 22-11-2172 Molex 1: 2,02 € 1.391In Stock	Mfr. Part No. 22-11-2172 Mouser Part No 538-22-11-2172	Molex	Headers & Wire Housings KK 254 Solid Header, Vert., w/ Friction Lock, 17 Pos., 0.51 m Gold (Au) Pltg, 3.56mm Tail Lg., Bag Learn More about Molex kk	Datasheet	1.391In Stock	2,02 € 1,94 €	Min.: 1 Mult.: 1	Headers	Locking	17 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Gold	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 KK 254 PC Board Conn., R/A, End-to-End Stackable, 2.54 m Tin (Sn) Pltg, 5 Pos. 22-15-2056 Molex 1: 0,662 € 4.713In Stock	Mfr. Part No. 22-15-2056 Mouser Part No 538-22-15-2056	Molex	Headers & Wire Housings KK 254 PC Board Conn., R/A, End-to-End Stackable, 2.54 m Tin (Sn) Pltg, 5 Pos. Learn More about Molex kk	Datasheet	4.713In Stock	0,662 € 0,562 € 0,561 € 0,476 € View 0,425 € 0,405 € 0,397 € 0,361 € 0,344 €	Min.: 1 Mult.: 1	Headers	Socket Assembly	5 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Right Angle	Socket (Female)	Tin		3.35 mm (0.132 in)	4455	KK	Board-to-Board, Signal		- 40 C	+ 80 C	Tray
Headers & Wire Housings KK 396 Header, Vert., Friction Lock, 9 Pos., Gold (Au) Pltg 26-61-4090 Molex 1: 4,22 € 2.744In Stock	Mfr. Part No. 26-61-4090 Mouser Part No 538-26-61-4090	Molex	Headers & Wire Housings KK 396 Header, Vert., Friction Lock, 9 Pos., Gold (Au) Pltg Learn More about Molex kk	Datasheet	2.744In Stock	4,22 € 3,59 € 3,26 € 3,23 € View 3,04 € 2,93 € 2,72 € 2,44 € 2,37 €	Min.: 1 Mult.: 1	Headers	Locking	9 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 Assy Top 10 Ckts Tin 09-48-2103 Molex 1: 1,91 € 1.571In Stock	Mfr. Part No. 09-48-2103 Mouser Part No 538-09-48-2103	Molex	Headers & Wire Housings KK 156 PCB Assy Top 10 Ckts Tin Learn More about Molex kk	Datasheet	1.571In Stock	1,91 € 1,62 € 1,61 € 1,38 € View 1,36 € 1,20 € 1,01 € 0,997 €	Min.: 1 Mult.: 1	Headers	Receptacle	10 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Straight	Socket (Female)	Tin			41815	KK			- 40 C	+ 80 C
Headers & Wire Housings KK 396 PC Board Conn., Top Entry, w/ Ramp, Brass, 3.05mm Tail Lg., 0.38 m Gold (Au) Selective Pltg, 10 Pos. 09-48-3106 Molex 1: 2,28 € 2.141In Stock	Mfr. Part No. 09-48-3106 Mouser Part No 538-09-48-3106	Molex	Headers & Wire Housings KK 396 PC Board Conn., Top Entry, w/ Ramp, Brass, 3.05mm Tail Lg., 0.38 m Gold (Au) Selective Pltg, 10 Pos. Learn More about Molex kk	Datasheet	2.141In Stock	2,28 € 2,04 € 1,92 € 1,72 € 1,65 €	Min.: 1 Mult.: 1	Headers	Socket Assembly	10 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Straight	Socket (Female)	Gold		3.05 mm (0.12 in)	41815	KK					Tray
Headers & Wire Housings KK 396 PC Board Conn., R/A, w/ Ramp, Brass, 3.68mm Tail Lg., 0.38 m Gold (Au) Selective Pltg, 15 Pos. 09-48-3155 Molex 1: 4,68 € 522In Stock	Mfr. Part No. 09-48-3155 Mouser Part No 538-09-48-3155	Molex	Headers & Wire Housings KK 396 PC Board Conn., R/A, w/ Ramp, Brass, 3.68mm Tail Lg., 0.38 m Gold (Au) Selective Pltg, 15 Pos. Learn More about Molex kk	Datasheet	522In Stock	4,68 € 4,26 € 3,16 € 3,10 € View 3,01 € 2,72 € 2,61 € 2,51 € 2,42 €	Min.: 1 Mult.: 1	Headers	Receptacle	15 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Right Angle	Socket (Female)	Gold			41815	KK			- 40 C	+ 80 C	Tray
Headers & Wire Housings 8CKT HOUSING 10-11-2083 Molex 1: 0,181 € 29.659In Stock	Mfr. Part No. 10-11-2083 Mouser Part No 538-10-11-2083	Molex	Headers & Wire Housings 8CKT HOUSING Learn More about Molex kk	Datasheet	29.659In Stock	0,181 € 0,18 € 0,168 €	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	8 Position	2.54 mm (0.1 in)	1 Row	Cable Mount / Free Hanging	Crimp	Straight	Socket (Female)				7880	KK High Pressure					Bulk
Headers & Wire Housings KK 254 Wire-to-Board Header, Single Row, Vert., 7 Pos., PA Polyamide Nylon, Gold (Au) Pltg 22-10-2071 Molex 1: 1,48 € 13.832In Stock	Mfr. Part No. 22-10-2071 Mouser Part No 538-22-10-2071	Molex	Headers & Wire Housings KK 254 Wire-to-Board Header, Single Row, Vert., 7 Pos., PA Polyamide Nylon, Gold (Au) Pltg Learn More about Molex kk	Datasheet	13.832In Stock	1,48 € 1,26 € 1,08 € 0,92 € View 0,869 € 0,852 € 0,724 €	Min.: 1 Mult.: 1	Headers	Pin Strip	7 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Gold	7.49 mm (0.295 in)	3.43 mm (0.135 in)	4030	KK	Board-to-Board, Wire-to-Board, Signal		- 40 C	+ 80 C	Bulk
Headers & Wire Housings Mini-Latch / KK Wire-to-Board Header, Vert., w/ Friction Ramp, 5 Pos., Gold (Au) Pltg, Natural 22-11-1051 Molex 1: 1,01 € 8.924In Stock	Mfr. Part No. 22-11-1051 Mouser Part No 538-22-11-1051	Molex	Headers & Wire Housings Mini-Latch / KK Wire-to-Board Header, Vert., w/ Friction Ramp, 5 Pos., Gold (Au) Pltg, Natural Learn More about Molex mini latch wire to board system	Datasheet	8.924In Stock	1,01 € 0,886 € 0,643 € 0,636 € View 0,628 € 0,549 € 0,501 € 0,497 € 0,479 €	Min.: 1 Mult.: 1	Headers	Locking	5 Position	2.5 mm (0.098 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Gold	7.5 mm (0.295 in)	3.4 mm (0.134 in)	5045	Mini-Latch/KK	Wire-to-Board, Signal		- 40 C	+ 105 C	Bulk
Headers & Wire Housings KK 254 Header, Vert., Square Pin, Friction Lock, 9 Pos., 7.5mm Mating Pin Lg., 3.56mm Tail Lg., 2.54 m Matte Tin (Sn) Pltg 22-27-2091 Molex 1: 0,757 € 8.862In Stock	Mfr. Part No. 22-27-2091 Mouser Part No 538-22-27-2091	Molex	Headers & Wire Housings KK 254 Header, Vert., Square Pin, Friction Lock, 9 Pos., 7.5mm Mating Pin Lg., 3.56mm Tail Lg., 2.54 m Matte Tin (Sn) Pltg Learn More about Molex kk	Datasheet	8.862In Stock	0,757 € 0,641 € 0,611 € 0,544 € View 0,485 € 0,44 € 0,414 € 0,394 € 0,375 €	Min.: 1 Mult.: 1	Headers	Locking	9 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	7.49 mm (0.295 in)	3.56 mm (0.14 in)	6410	KK	Wire-to-Board, Signal		- 40 C	+ 80 C	Bulk
Headers & Wire Housings KK 396 Wire-to-Board Header, Vert., Round Pin, w/ Polarizing Wall, 4 Pos., Tin (Sn) Pltg 26-19-2041 Molex 1: 0,688 € 3.707In Stock	Mfr. Part No. 26-19-2041 Mouser Part No 538-26-19-2041	Molex	Headers & Wire Housings KK 396 Wire-to-Board Header, Vert., Round Pin, w/ Polarizing Wall, 4 Pos., Tin (Sn) Pltg Learn More about Molex kk	Datasheet	3.707In Stock	0,688 € 0,583 € 0,495 € 0,441 € View 0,416 € 0,403 € 0,359 € 0,348 €	Min.: 1 Mult.: 1	Headers	Shrouded	4 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin		4.45 mm (0.175 in)	3190	KK	Wire-to-Board, Power		- 40 C	+ 80 C	Bulk
Headers & Wire Housings KK 254 Crimp Housing, Friction Ramp, 3 Pos., Black 50-29-1558 Molex 1: 0,112 € 34.960In Stock	Mfr. Part No. 50-29-1558 Mouser Part No 538-50-29-1558	Molex	Headers & Wire Housings KK 254 Crimp Housing, Friction Ramp, 3 Pos., Black	Datasheet	34.960In Stock	0,112 € 0,094 € 0,084 € 0,079 € View 0,071 € 0,065 € 0,064 € 0,062 € 0,059 €	Min.: 1 Mult.: 1	Headers		3 Position	2.54 mm (0.1 in)	1 Row				Socket (Female)				2695	KK	Wire-to-Board, Signal				Bulk
Headers & Wire Housings STRT HDR ASSY 6P 22-03-2062 Molex 1: 0,37 € 8.619In Stock	Mfr. Part No. 22-03-2062 Mouser Part No 538-22-03-2062	Molex	Headers & Wire Housings STRT HDR ASSY 6P Learn More about Molex kk	Datasheet	8.619In Stock	0,37 € 0,336 € 0,321 € 0,31 € View 0,262 € 0,255 €	Min.: 1 Mult.: 1	Headers	Pin Strip	6 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin			4030	KK	Board-to-Board, Wire-to-Board, Signal		- 40 C	+ 80 C