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 (CLP) 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 4P VERT HDR 15u Au 22-28-4044 Molex 1: $581 45.875In Stock	Mfr. Part # 22-28-4044 Mouser Part # 538-22-28-4044	Molex	Headers & Wire Housings 4P VERT HDR 15u Au Learn More about Molex kk	Datasheet	45.875In Stock	$581 $523 $520 $473 View $419 $396 $354	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 RA SMT B/A HDR 4P 22-28-8042 Molex 1: $387 68.507In Stock	Mfr. Part # 22-28-8042 Mouser Part # 538-22-28-8042	Molex	Headers & Wire Housings RA SMT B/A HDR 4P Learn More about Molex kk	Datasheet	68.507In Stock	$387 $386	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 100 Hdr Assy Bkwy Bkwy 06 Ckt 30 SGold 22-28-4067 Molex 1: $1.618 23.869In Stock	Mfr. Part # 22-28-4067 Mouser Part # 538-22-28-4067	Molex	Headers & Wire Housings KK 100 Hdr Assy Bkwy Bkwy 06 Ckt 30 SGold Learn More about Molex kk	Datasheet	23.869In Stock	$1.618 $1.492 $1.470 $1.379 View $1.356 $1.276 $1.242 $1.219 $991	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 HSG 8P WITH LKG RAMP 22-01-2087 Molex 1: $273 22.342In Stock	Mfr. Part # 22-01-2087 Mouser Part # 538-22-01-2087	Molex	Headers & Wire Housings HSG 8P WITH LKG RAMP Learn More about Molex kk	Datasheet	22.342In Stock	$273 $240 $226 $196 View $173 $145 $137 $130 $124	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	8 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 100 Hdr Flat 04 Ckt W/VOID TIN 22-04-2041 Molex 1: $330 20.743In Stock	Mfr. Part # 22-04-2041 Mouser Part # 538-22-04-2041	Molex	Headers & Wire Housings KK 100 Hdr Flat 04 Ckt W/VOID TIN Learn More about Molex kk	Datasheet	20.743In Stock	$330 $283 $240 $214 View $197 $193 $178 $177	Min.: 1 Mult.: 1	Headers	Pin Strip	4 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	7.49 mm (0.295 in)	3.43 mm (0.135 in)	4380	KK			- 40 C	+ 80 C
Headers & Wire Housings VERT SOLID HDR 18P friction lock 22-23-2181 Molex 1: $1.265 5.739In Stock	Mfr. Part # 22-23-2181 Mouser Part # 538-22-23-2181	Molex	Headers & Wire Housings VERT SOLID HDR 18P friction lock Learn More about Molex kk	Datasheet	5.739In Stock	$1.265 $1.219 $1.208	Min.: 1 Mult.: 1	Headers	Locking	18 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 3.96mm KK Hdr Vt Pol Pol-W RPin VrA 8Ckt 26-19-2081 Molex 1: $1.982 2.464In Stock	Mfr. Part # 26-19-2081 Mouser Part # 538-26-19-2081	Molex	Headers & Wire Housings 3.96mm KK Hdr Vt Pol Pol-W RPin VrA 8Ckt	Datasheet	2.464In Stock	$1.982 $1.720 $1.253 $1.242 View $1.173 $1.151 $1.103	Min.: 1 Mult.: 1	Headers	Shrouded	8 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 100 PCB Assy Btm Assy Btm 08 Ckt Tin 38-00-1398 Molex 1: $2.620 4.826In Stock	Mfr. Part # 38-00-1398 Mouser Part # 538-38-00-1398	Molex	Headers & Wire Housings KK 100 PCB Assy Btm Assy Btm 08 Ckt Tin Learn More about Molex kk	Datasheet	4.826In Stock	$2.620 $2.244 $1.903 $1.709 View $1.470 $1.379 $1.367	Min.: 1 Mult.: 1	Headers	Socket Assembly	8 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 Header Assy F rLk Break 14 Ckt Tin 41672-0203 Molex 1: $4.534 1.078In Stock	Mfr. Part # 41672-0203 Mouser Part # 538-41672-0203	Molex	Headers & Wire Housings KK 156 Header Assy F rLk Break 14 Ckt Tin Learn More about Molex kk	Datasheet	1.078In Stock	$4.534 $4.124 $2.461 $2.313 View $2.142 $2.051 $2.028	Min.: 1 Mult.: 1	Headers	Breakaway	14 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Tin	11.43 mm (0.45 in)	5.38 mm (0.212 in)	41672	KK			- 40 C	+ 80 C
Headers & Wire Housings 2.54mm SRSW TH HDR W/O CAP GFLF 1CKT 87891-0101 Molex 1: $592 7.912In Stock	Mfr. Part # 87891-0101 Mouser Part # 538-87891-0101	Molex	Headers & Wire Housings 2.54mm SRSW TH HDR W/O CAP GFLF 1CKT	Datasheet	7.912In Stock	$592 $507 $464 $418 View $383 $322 $301 $287 $263	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 HSG 10P W/RAMP/RIBS 09-50-8103 Molex 1: $308 16.165In Stock	Mfr. Part # 09-50-8103 Mouser Part # 538-09-50-8103	Molex	Headers & Wire Housings HSG 10P W/RAMP/RIBS Learn More about Molex kk	Datasheet	16.165In Stock	$308 $279 $268 $257 View $255 $197	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	10 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 100 Housing Crimp Pol Ramp 2 Ckt 10-11-2024 Molex 1: $159 22.079In Stock	Mfr. Part # 10-11-2024 Mouser Part # 538-10-11-2024	Molex	Headers & Wire Housings KK 100 Housing Crimp Pol Ramp 2 Ckt Learn More about Molex kk	Datasheet	22.079In Stock	$159 $138 $117 $111 View $107 $103 $95,7 $92,3	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	2 Position	2.54 mm (0.1 in)	1 Row	Cable Mount / Free Hanging	Crimp	Straight	Socket (Female)				7880	KK
Headers & Wire Housings 7 PIN HOUSING 10-11-2073 Molex 1: $262 23.400In Stock	Mfr. Part # 10-11-2073 Mouser Part # 538-10-11-2073	Molex	Headers & Wire Housings 7 PIN HOUSING Learn More about Molex kk	Datasheet	23.400In Stock	$262 $212 $187 $163 View $156 $155	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	7 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 2.54mm KK Hdr RA FricLK .5Au 8Ckt 22-12-4082 Molex 1: $1.333 2.447In Stock	Mfr. Part # 22-12-4082 Mouser Part # 538-22-12-4082	Molex	Headers & Wire Housings 2.54mm KK Hdr RA FricLK .5Au 8Ckt Learn More about Molex kk	Datasheet	2.447In Stock	$1.333 $1.162 $1.061 $1.024 View $976 $975	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	6.71 mm (0.264 in)	3.8 mm (0.15 in)	7395	KK	Wire-to-Board, Signal		- 40 C	+ 80 C	Bulk
Headers & Wire Housings PCB BOTTOM ENTRY 8P 22-17-3082 Molex 1: $2.005 5.487In Stock	Mfr. Part # 22-17-3082 Mouser Part # 538-22-17-3082	Molex	Headers & Wire Housings PCB BOTTOM ENTRY 8P Learn More about Molex kk	Datasheet	5.487In Stock	$2.005 $1.743 $1.595 $1.390 View $1.367 $1.253 $1.196 $1.039	Min.: 1 Mult.: 1	Headers	Socket Assembly	8 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Bottom Entry	Socket (Female)	Gold			4455	KK					Tray
Headers & Wire Housings 10PIN FR LOCK HEADER 22-29-2101 Molex 1: $2.472 7.870In Stock	Mfr. Part # 22-29-2101 Mouser Part # 538-22-29-2101	Molex	Headers & Wire Housings 10PIN FR LOCK HEADER Learn More about Molex kk	Datasheet	7.870In Stock	$2.472 $2.130 $1.948 $1.811 View $1.618 $1.481 $1.401 $1.265	Min.: 1 Mult.: 1	Headers	Locking	10 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Gold		3.56 mm (0.14 in)	6410	KK	Wire-to-Board, Signal		- 40 C	+ 80 C	Bulk
Headers & Wire Housings SOCKET 22-26AWG BULK 08-55-0106 Molex 1: $524 18.159In Stock	Mfr. Part # 08-55-0106 Mouser Part # 538-08-55-0106	Molex	Headers & Wire Housings SOCKET 22-26AWG BULK Learn More about Molex kk	Datasheet	18.159In Stock	$524 $442 $394 $376 View $288 $276 $263 $235 $228	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 6 POS RECEPT .156 R/A PCB TIN 09-48-1064 Molex 1: $1.219 6.961In Stock	Mfr. Part # 09-48-1064 Mouser Part # 538-09-48-1064	Molex	Headers & Wire Housings 6 POS RECEPT .156 R/A PCB TIN Learn More about Molex kk	Datasheet	6.961In Stock	$1.219 $1.103 $1.000 $947 View $902 $811 $738 $710 $630	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 3P .156 SPOX F/L HDR 09-65-2038 Molex 1: $296 39.538In Stock	Mfr. Part # 09-65-2038 Mouser Part # 538-09-65-2038	Molex	Headers & Wire Housings 3P .156 SPOX F/L HDR	Datasheet	39.538In Stock	$296 $263 $244 $216 View $208 $198 $193 $154 $146	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 HSG 10P W/LKG RAMP 22-01-2107 Molex 1: $342 27.751In Stock	Mfr. Part # 22-01-2107 Mouser Part # 538-22-01-2107	Molex	Headers & Wire Housings HSG 10P W/LKG RAMP Learn More about Molex kk	Datasheet	27.751In Stock	$342 $297 $255 $240 View $230 $224 $219 $218	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	10 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 2.54MM 10P RA HDR W/ FRCTN LOCK 22-05-7108 Molex 1: $1.025 8.697In Stock	Mfr. Part # 22-05-7108 Mouser Part # 538-22-05-7108	Molex	Headers & Wire Housings 2.54MM 10P RA HDR W/ FRCTN LOCK Learn More about Molex kk	Datasheet	8.697In Stock	$1.025 $873 $837 $831 View $755 $679 $619 $580 $567	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 2.54MM BREAKAWAY Vertical 30 CKT Tin 22-28-4300 Molex 1: $1.800 6.078In Stock	Mfr. Part # 22-28-4300 Mouser Part # 538-22-28-4300	Molex	Headers & Wire Housings 2.54MM BREAKAWAY Vertical 30 CKT Tin Learn More about Molex kk	Datasheet	6.078In Stock	$1.800 $1.709 $1.641 $1.208 View $1.151 $1.113 $1.101 $1.081 $974	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 156 Hdr Assy Flat Flat Bkwy 03 ckt Tin 26-58-0030 Molex 1: $365 7.617In Stock	Mfr. Part # 26-58-0030 Mouser Part # 538-26-58-0030	Molex	Headers & Wire Housings KK 156 Hdr Assy Flat Flat Bkwy 03 ckt Tin Learn More about Molex kk	Datasheet	7.617In Stock	$365 $360 $265 $252 View $243 $235 $208	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 STRT HDR ASSY 6P 22-03-2062 Molex 1: $490 8.619In Stock	Mfr. Part # 22-03-2062 Mouser Part # 538-22-03-2062	Molex	Headers & Wire Housings STRT HDR ASSY 6P Learn More about Molex kk	Datasheet	8.619In Stock	$490 $445 $425 $410 View $347 $338 $337	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
Headers & Wire Housings KK2.5MM FL WAF.ASS. GOLD 504502AG 22-11-1021 Molex 1: $741 38.458In Stock	Mfr. Part # 22-11-1021 Mouser Part # 538-22-11-1021	Molex	Headers & Wire Housings KK2.5MM FL WAF.ASS. GOLD 504502AG Learn More about Molex mini latch wire to board system	Datasheet	38.458In Stock	$741 $664 $663 $564 View $504 $480 $459 $427 $407	Min.: 1 Mult.: 1	Headers	Locking	2 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