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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Description Datasheet Availability Pricing (SGD) 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
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Wire Gauge
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Packaging
Molex Headers & Wire Housings VERT PCB HDR 8P GOLD FRICTION LOCK
Datasheet
1,220In Stock
Min.: 1
Mult.: 1

Headers Locking 8 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 3.56 mm (0.14 in) 41791 KK Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings 2P HEADER TIN
Datasheet
4,670In Stock
15,400Expected 12/1/2027
Min.: 1
Mult.: 1

Headers Locking 2 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Gold 11.43 mm (0.45 in) 3.96 mm (0.156 in) 41792 KK Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings 4P HEADER TIN
Datasheet
5,831In Stock
Min.: 1
Mult.: 1

Headers Locking 4 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Gold 11.43 mm (0.45 in) 3.96 mm (0.156 in) 41792 KK Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings 3P VERT HEADER Circuit 2 Voided
Datasheet
8,937In Stock
Min.: 1
Mult.: 1

Headers Locking 3 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
Molex Headers & Wire Housings HEADER VERTICAL 4P friction lock
Datasheet
2,539In Stock
24,150Expected 8/2/2027
Min.: 1
Mult.: 1

Headers Locking 4 Position 3.96 mm (0.156 in) 1 Row Press Fit Solder Pin Straight Pin (Male) Tin 42491 KK Bulk
Molex Headers & Wire Housings VERT FRICTION LK 6P press-fit pegs
Datasheet
15,067In Stock
Min.: 1
Mult.: 1

Headers Locking 6 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
Molex Headers & Wire Housings KK 156 Hdr FrLk Peg 10 Ckt Tin
Datasheet
6,688In Stock
Min.: 1
Mult.: 1

Headers Locking 10 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
Molex Headers & Wire Housings KK 156 Hdr FrLk Peg 12 Ckt Tin
Datasheet
6,612In Stock
Min.: 1
Mult.: 1

Headers Locking 12 Position 3.96 mm (0.156 in) 1 Row Press Fit Solder Pin Straight Pin (Male) Tin 42491 KK Bulk
Molex Headers & Wire Housings KK 156 Hdr Assy FrLk Assy FrLk 05 Ckt Tin
Datasheet
5,228In Stock
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) 41791 KK
Molex Headers & Wire Housings KK 100 PCB Assy Btm Assy Btm 05 Ckt Tin
Datasheet
2,520In Stock
6,300On Order
Min.: 1
Mult.: 1

Headers Socket Assembly 5 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
Molex Headers & Wire Housings KK 100 PCB Assy Btm Assy Btm 08 Ckt Tin
Datasheet
4,826In Stock
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
Molex Headers & Wire Housings KK 100 PCB Assy Btm Assy Btm 10 Ckt Tin
Datasheet
1,276In Stock
Min.: 1
Mult.: 1

Headers Socket Assembly 10 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
Molex Headers & Wire Housings 2.54MM 6P PCB CONN TOP ENTRY
Datasheet
1,835In Stock
Min.: 1
Mult.: 1

Headers Socket Assembly 6 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Socket (Female) Tin 3.3 mm (0.13 in) 4455 KK Board-to-Board, Signal - 40 C + 105 C Tray
Molex Headers & Wire Housings STD.KK CRIMP REC 247 Reel of 6000
Datasheet
Product Comments
161,000In Stock
105,000Expected 8/9/2026
Min.: 7,000
Mult.: 7,000
: 7,000

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Tin 2478 KK Wire-to-Board, Wire-to-Wire, Power 24 AWG to 18 AWG - 40 C + 105 C Reel
Molex Headers & Wire Housings KK TERM 24-18G FEM Cut Strip of 100
Datasheet
Product Comments
67,600In Stock
Min.: 100
Mult.: 100

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Tin 2478 KK Wire-to-Board, Wire-to-Wire, Power 24 AWG to 18 AWG - 40 C + 105 C Cut Tape
Molex Headers & Wire Housings MINI.KK CRIMP REC.
Datasheet
26,324In Stock
Min.: 1
Mult.: 1

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Gold 2759 KK Wire-to-Board, Power 28 AWG to 22 AWG - 40 C + 105 C Bulk
Molex Headers & Wire Housings KK 156 Hdr Assy Flat t Bkwy 06 ckt 15 SAu
Datasheet
1,678In Stock
Min.: 1
Mult.: 1

Headers Breakaway 6 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) 41661 KK Bulk
Molex Headers & Wire Housings KK 156 Hdr Assy FrLk RtAn 4Ckt 15 SGold
Datasheet
5,821In Stock
Min.: 1
Mult.: 1

41792 KK Bulk
Molex Headers & Wire Housings KK 156 PCB Assy Top 03 Ckts Tin
Datasheet
3,260In Stock
Min.: 1
Mult.: 1

Headers Socket Assembly 3 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 + 105 C
Molex Headers & Wire Housings KK 100 Hdr Bkw 4Ckt 2Ckt Voided
Datasheet
16,571In Stock
Min.: 1
Mult.: 1

Headers Breakaway 4 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 - 40 C + 105 C
Molex Headers & Wire Housings 3.96 TERM 18-20AWG REEL OF 1000
Datasheet
Product Comments
28,000In Stock
Min.: 1,000
Mult.: 1,000
: 1,000

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Tin 45570 KK Wire-to-Board, Power 20 AWG to 18 AWG Reel
Molex Headers & Wire Housings 156 CRIMP 18-20
Datasheet
31,488In Stock
Min.: 1
Mult.: 1

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Tin 45570 KK Wire-to-Board, Power 20 AWG Bulk
Molex Headers & Wire Housings KK .100" HSG 04P
Datasheet
106,586In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 4 Position 2.54 mm (0.1 in) 1 Row Cable Mount / Free Hanging Crimp Socket (Female) 47054 KK Bulk
Molex Headers & Wire Housings 3 Circuits, Black Friction Ramp KK 254 Crimp Housing
Datasheet
38,271In Stock
Min.: 1
Mult.: 1

Headers 3 Position 2.54 mm (0.1 in) 1 Row Socket (Female) 2695 KK Wire-to-Board, Signal Bulk

Molex Headers & Wire Housings 8CKT VERT HDR
Datasheet
1,785In Stock
Min.: 1
Mult.: 1

Headers Shrouded 8 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 7.26 mm (0.286 in) 7.34 mm (0.289 in) 6373 KK Wire-to-Board, Signal - 40 C + 105 C