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 (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 156 Hdr Assy Flat Flat Bkwy 03 ckt Tin
Datasheet
7,667In Stock
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
Molex Headers & Wire Housings HEADER VERTICAL 4P friction lock
Datasheet
4,744In Stock
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 KK 100 PCB Assy Btm Assy Btm 10 Ckt Tin
Datasheet
1,857In 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 KK 100 PCB Assy Top Assy Top 05 Ckt Tin
Datasheet
3,040In Stock
Min.: 1
Mult.: 1

Headers Socket Assembly 5 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 2.54MM 6P PCB CONN TOP ENTRY
Datasheet
2,445In 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 KK 100 Hdr Assy Bkwy Bkwy 08 Ckt 30 SGold
Datasheet
5,810In 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 6.09 mm (0.24 in) 3.18 mm (0.125 in) 42375 KK Wire-to-Board, Signal - 40 C + 105 C

Molex Headers & Wire Housings 8CKT VERT HDR
Datasheet
2,450In 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 CGRID HRD SRDW THOLE 2.54SNLF 5CKT
Datasheet
9,392In 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 3.78 mm (0.149 in) 3.76 mm (0.148 in) 87937 KK Board-to-Board, Wire-to-Board, Signal - 55 C + 105 C Tray

Molex Headers & Wire Housings KK TERM 18-24G Cut Strip of 100
Datasheet
Product Comments
43,200In Stock
Min.: 100
Mult.: 100

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Tin 2478 KK Wire-to-Board, Power 24 AWG to 18 AWG - 40 C + 80 C Cut Tape
Molex Headers & Wire Housings TERMINAL 18-22 BULK
Datasheet
Product Comments
14,013In Stock
Min.: 1
Mult.: 1

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Gold 2478 KK 24 AWG to 18 AWG - 40 C + 85 C Bulk
Molex Headers & Wire Housings REELED TERMINALS Reel of 7000
Datasheet
Product Comments
49,000In Stock
Min.: 7,000
Mult.: 7,000
Reel: 7,000

Contacts Crimp Socket (Female) Gold 4809 KK Wire-to-Board, Signal 30 AWG Reel
Molex Headers & Wire Housings 5.08MM 2P VERT HDR W/POLAR BACKWL
Datasheet
5,013In Stock
Min.: 1
Mult.: 1

Headers Shrouded 2 Position 5.08 mm (0.2 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 2599 KK Bulk
Molex Headers & Wire Housings 5.08MM 3P VERT HDR W/POLAR BACKWL
Datasheet
8,154In Stock
Min.: 1
Mult.: 1

Headers Shrouded 3 Position 5.08 mm (0.2 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 11.4 mm (0.449 in) 4.45 mm (0.175 in) 2599 KK Bulk
Molex Headers & Wire Housings 11P HOUSING HIGH PRESSURE
Datasheet
9,557In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 11 Position 2.54 mm (0.1 in) 1 Row Cable Mount / Free Hanging Crimp Straight Socket (Female) 7880 KK High Pressure Bulk
Molex Headers & Wire Housings KK RPC 156 Hdr FrLk 4Ckt Tin
Datasheet
8,190In Stock
Min.: 1
Mult.: 1

Headers Locking 4 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) 171813 KK - 40 C + 105 C
Molex Headers & Wire Housings KK Hdr RA 5 Ckt 3.96mm Pitch Sn
Datasheet
10,772In Stock
Min.: 1
Mult.: 1

Headers Locking 5 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 11.33 mm (0.446 in) 2.54 mm (0.1 in) 171814 KK Wire-to-Board - 40 C + 105 C Bulk
Molex Headers & Wire Housings KK Hdr RA 2 Ckt 2.54mm Pitch 15um Au
Datasheet
36,035In Stock
Min.: 1
Mult.: 1

Headers Locking 2 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Gold 6.73 mm (0.265 in) 2.54 mm (0.1 in) 171857 KK Wire-to-Board - 40 C + 105 C Bulk
Molex Headers & Wire Housings KK RPC 100 Hdr FrLk R/A 02 Ckt Tin T&R
Datasheet
18,738In Stock
Min.: 1
Mult.: 1
Reel: 3,300

Headers Locking 2 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 6.73 mm (0.265 in) 2.54 mm (0.1 in) 171857 KK Wire-to-Board - 40 C + 105 C Reel, Cut Tape
Molex Headers & Wire Housings 9C TERM HSG 94V-0
Datasheet
21,567In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 9 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 13 CRT HOUSING
Datasheet
14,258In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 13 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 20 CKT R/A F/L HDR
Datasheet
1,389In Stock
Min.: 1
Mult.: 1

Headers Locking 20 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 6.71 mm (0.264 in) 3.58 mm (0.141 in) 7478 KK Wire-to-Board, Signal - 40 C + 80 C Bulk

Molex Headers & Wire Housings KK 100 Hdr FrLk Vert 3CKT - 2P Voided
Datasheet
14,667In Stock
Min.: 1
Mult.: 1

Headers Locking 3 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
Molex Headers & Wire Housings PCB RECEPTACLE 4P BOTTOM ENTRY
Datasheet
5,903In Stock
Min.: 1
Mult.: 1

Headers Receptacle 4 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 4CKT PCB CONN BOTTOM ENTRY
Datasheet
1,464In Stock
Min.: 1
Mult.: 1

Headers Socket Assembly 4 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Bottom Entry Socket (Female) Gold 3.35 mm (0.132 in) 4455 KK Board-to-Board, Signal - 40 C + 80 C Tray
Molex Headers & Wire Housings 100 KK Bkwy Hdr Str y Hdr Str 30SAu 2Ckt
Datasheet
20,651In Stock
Min.: 1
Mult.: 1

Headers Breakaway 2 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 7.49 mm (0.295 in) 3.05 mm (0.12 in) 42375 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C Bulk