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 (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Product
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Number of Rows
Mounting Style
Termination Style
Mounting Angle
Contact Gender
Contact Plating
Mating Post Length
Termination Post Length
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Packaging
Molex Headers & Wire Housings KK 156 Hdr FrLk Peg 10 Ckt Tin
Datasheet
8,699In 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
3,202In 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 100 PCB Assy RtAn 04 Ckt Tin
Datasheet
2,872In 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) Tin 4455 KK Tray
Molex Headers & Wire Housings 2.54 mm KK Hdr Vt VrA FL Vd02 3Ckt
Datasheet
11,275In 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 6410 KK - 40 C + 105 C Bulk
Molex Headers & Wire Housings KK 254 Crimp Terminal 22-28 AWG 0.35 m Gold (Au)
Datasheet
45,447In Stock
Min.: 1
Mult.: 1

Contacts Crimp Gold 2759 KK 28 AWG
Molex Headers & Wire Housings MINI.KK CRIMP REC.
Datasheet
34,583In 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 FrLk FrLk 10 Ckt 15 SGol
Datasheet
1,784In Stock
Min.: 1
Mult.: 1

Headers Locking 10 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
Molex Headers & Wire Housings 3.96 TERM 18-20AWG REEL OF 1000
Datasheet
Product Comments
39,000In Stock
Min.: 1,000
Mult.: 1,000
Reel: 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 .100 KK. CRIMP SHROUD TERM 24-30AWG
Datasheet
16,087In Stock
10,000Expected 28/10/2026
Min.: 1
Mult.: 1

Contacts Crimp Socket (Female) Tin 7879 KK 30 AWG Bulk
Molex Headers & Wire Housings KK 100 Crp Term Std rm Std 22-30 Awg Tin
Datasheet
40,383In Stock
Min.: 1
Mult.: 1

Contacts Shrouded Through Hole Solder Pin Straight Pin (Male) Tin 2759 KK 30 AWG to 22 AWG - 40 C + 105 C Bulk

Molex Headers & Wire Housings 8CKT VERT HDR
Datasheet
2,250In 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
Molex Headers & Wire Housings KK 100 TERM 24-30G Reel of 5000
Datasheet
Product Comments
45,000In Stock
Min.: 5,000
Mult.: 5,000
Reel: 5,000

Contacts Crimp Socket (Female) Tin 7879 KK Signal 30 AWG to 24 AWG Reel
Molex Headers & Wire Housings KK TERM 22-26G Reel of 7000
Datasheet
Product Comments
77,000In Stock
Min.: 7,000
Mult.: 7,000
Reel: 7,000

Contacts Crimp Socket (Female) Tin 2578 KK Wire-to-Board, Power 26 AWG Reel
Molex Headers & Wire Housings KK 156 TERMINAL CRIMP 18-24 AWG TIN
Datasheet
7,000In Stock
Min.: 7,000
Mult.: 7,000
Reel: 7,000

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Tin 2478 KK 24 AWG to 18 AWG - 40 C + 80 C Reel
Molex Headers & Wire Housings KK TERM 22-30G Cut Strip of 100
Datasheet
Product Comments
2,000In Stock
500Expected 24/03/2026
Min.: 100
Mult.: 100

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Gold 2759 KK Wire-to-Board, Signal 30 AWG to 22 AWG - 40 C + 85 C Cut Tape
Molex Headers & Wire Housings RA PCB CONN 2P
Datasheet
891In Stock
Min.: 1
Mult.: 1

Headers Receptacle 2 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Right Angle Socket (Female) Tin 3.68 mm (0.145 in) 41815 KK - 40 C + 105 C Tray
Molex Headers & Wire Housings 3.96MM BOARD CONN RA 5POS TIN
Datasheet
886In Stock
Min.: 1
Mult.: 1

Headers Receptacle 5 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
Molex Headers & Wire Housings 7 POS RECEPT .156 R/A PCB TIN
Datasheet
251In Stock
Min.: 1
Mult.: 1

Headers Receptacle 7 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
Molex Headers & Wire Housings PCB TOP ENTRY 8P tin
Datasheet
1,331In Stock
Min.: 1
Mult.: 1

Headers Receptacle 8 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Socket (Female) Tin 41815 KK - 40 C + 80 C
Molex Headers & Wire Housings .156 KK PCB CONNECTO
Datasheet
45In Stock
Min.: 1
Mult.: 1

Headers Receptacle 8 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Socket (Female) Gold 3.18 mm (0.125 in) 41815 KK - 40 C + 80 C Tray
Molex Headers & Wire Housings .156 KK PCB CONNECTO
Datasheet
1,584In Stock
Min.: 1
Mult.: 1

Headers Receptacle 2 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 Tray
Molex Headers & Wire Housings 4 POS RECEPT .156 TOP PCB TIN
Datasheet
2,559In Stock
Min.: 1
Mult.: 1

Headers Receptacle 4 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 41815 KK - 40 C + 105 C Tray
Molex Headers & Wire Housings 4 POS RECEPT .156 BOTTOM PCB TIN
Datasheet
567In Stock
Min.: 1
Mult.: 1

Headers Receptacle 4 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Socket (Female) Tin 41815 KK - 40 C + 105 C Tray
Molex Headers & Wire Housings 8 POS RECEPT .156 TOP PCB TIN
Datasheet
300In Stock
Min.: 1
Mult.: 1

Headers Receptacle 8 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Socket (Female) Tin 41815 KK - 40 C + 105 C Tray
Molex Headers & Wire Housings KK 156 PCB Assy RtAn 04 Ckts Gold
Datasheet
520In Stock
Min.: 1
Mult.: 1

Headers Receptacle 4 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Right Angle Socket (Female) Gold 3.68 mm (0.145 in) 41815 KK - 40 C + 105 C