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.

Results: 2,430
Select Image Part #
 Mfr.
Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model 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

Molex Headers & Wire Housings KK 100 Hdr FrLk Vert 03 Ckt Tin
Datasheet
11,034In Stock
Min.: 1
Mult.: 1

Headers Locking 3 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 7.62 mm (0.3 in) 3.94 mm (0.155 in) 6373 KK Wire-to-Board, Signal - 40 C + 80 C
Molex Headers & Wire Housings KK 156 PCB Assy Top 08 Ckts Gold
Datasheet
1,514In Stock
Min.: 1
Mult.: 1

Headers Receptacle 8 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 - 40 C + 105 C
Molex Headers & Wire Housings VERT SOLID HDR 18P friction lock
Datasheet
6,299In Stock
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
Molex Headers & Wire Housings 13P LK TERM HOUSING
Datasheet
9,153In Stock
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) 41695 KK Wire-to-Board, Power Bulk
Molex Headers & Wire Housings KK 100 Housing Crimp Pol Ramp 6 Ckt
Datasheet
24,742In Stock
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
Molex Headers & Wire Housings KK Hdr Vrt 8 Ckt 2.54mm Pitch Sn
Datasheet
9,452In Stock
Min.: 1
Mult.: 1

Headers Locking 8 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 7.44 mm (0.293 in) 2.34 mm (0.092 in) 171856 KK Wire-to-Board - 40 C + 105 C Bulk
Molex Headers & Wire Housings HSG 12P W/LKG RAMP
Datasheet
53,031In Stock
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
Molex Headers & Wire Housings BKWY HDR STR 5P tin
Datasheet
16,994In Stock
Min.: 1
Mult.: 1

Headers Breakaway 5 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
Molex Headers & Wire Housings VERT PCB HDR 12P TIN W/O PEGS
Datasheet
4,125In Stock
Min.: 1
Mult.: 1

Headers Unshrouded 12 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) 41771 KK Board-to-Board, Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings TERMINAL 22-26 BULK
Datasheet
Product Comments
36,230In Stock
Min.: 1
Mult.: 1

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Tin 7258 KK 26 AWG to 22 AWG - 40 C + 80 C Bulk
Molex Headers & Wire Housings .062 CHAIN FORM Reel of 7000
Datasheet
Product Comments
42,000In Stock
Min.: 7,000
Mult.: 7,000
: 7,000

Contacts Cable Mount / Free Hanging Crimp Pin (Male) Tin 5006 KK 24 AWG to 18 AWG - 40 C + 105 C Reel
Molex Headers & Wire Housings CRIMP HSG 13P
Datasheet
9,620In Stock
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
Molex Headers & Wire Housings HOUSING KK .156IN GWT 7 CKT
Datasheet
2,511In Stock
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) 3069 KK Wire-to-Board, Power Bulk
Molex Headers & Wire Housings KK 100 Housing Crimp Pol Ramp 10 Ckt
Datasheet
10,118In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 10 Position 2.54 mm (0.1 in) 1 Row Cable Mount / Free Hanging Crimp Straight Socket (Female) 7880 KK
Molex Headers & Wire Housings KK Hdr Vrt 7 Ckt 3.96mm Pitch Sn
Datasheet
3,507In Stock
Min.: 1
Mult.: 1

Headers Locking 7 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
Molex Headers & Wire Housings R/A PCB HDR 8P TIN PLATING
Datasheet
4,421In Stock
Min.: 1
Mult.: 1

Headers Pin Strip 8 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 9.37 mm (0.369 in) 3.15 mm (0.124 in) 4094 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings 2.54MM 10P RA HDR W/ FRCTN LOCK
Datasheet
3,517In Stock
6,400Expected 14/08/2026
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
Molex Headers & Wire Housings 12P BOTTOM ENTRY HDR
Datasheet
1,999In Stock
Min.: 1
Mult.: 1

Headers Receptacle 12 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Bottom Entry Socket (Female) Tin 3.35 mm (0.132 in) 4455 KK Board-to-Board, Signal - 40 C + 80 C Tray
Molex Headers & Wire Housings KK 100 PCB Assy RtAn 04 Ckt Gold
Datasheet
1,456In Stock
Min.: 1
Mult.: 1

Headers Socket Assembly 4 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

Molex Headers & Wire Housings KK 100 Hdr FrLk Vert 02 Ckt Tin
Datasheet
12,571In Stock
Min.: 1
Mult.: 1

Headers Locking 2 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 6373 KK Wire-to-Board, Signal - 40 C + 80 C
Molex Headers & Wire Housings 2.54MM HDR VT 16P 295/120 SN
Datasheet
4,232In Stock
Min.: 1
Mult.: 1

Headers Breakaway 16 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 42375 KK Bulk
Molex Headers & Wire Housings KK 100 Hdr Assy Bkwy Bkwy 20 Ckt 15 SGold
Datasheet
1,544In Stock
Min.: 1
Mult.: 1

Headers Breakaway 20 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
Molex Headers & Wire Housings KK 100 Hdr Assy Bkwy Assy Bkwy 02 Ckt Tin
Datasheet
28,339In Stock
Min.: 1
Mult.: 1

Headers Breakaway 2 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
Molex Headers & Wire Housings R/A B/A HDR 4P TIN SQUARE PIN
Datasheet
Product Comments
4,986In Stock
Min.: 1
Mult.: 1

Headers Breakaway 4 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 14.55 mm (0.573 in) 4.67 mm (0.184 in) 41662 KK Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings KK 156 Hdr Assy Flat Flat Bkwy 19 ckt Ti
Datasheet
2,151In Stock
Min.: 1
Mult.: 1

Headers Breakaway 19 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 11.43 mm (0.45 in) 4.37 mm (0.172 in) 41661 KK Board-to-Board, Wire-to-Board, Power - 40 C + 80 C Bulk