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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Qty. RoHS ECAD Model Product
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Number of Rows
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Termination Style
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Mating Post Length
Termination Post Length
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Molex Headers & Wire Housings KK 156 Hdr FrLk Peg 05 Ckt Tin
Datasheet
5.054In 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) 42491 KK
Molex Headers & Wire Housings KK 156 Hdr Assy FrLk k Bkwy 10 ckt 15 SAu
Datasheet
1.350In Stock
Min.: 1
Mult.: 1

Headers Breakaway 10 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) 41671 KK Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings KK 156 Hdr Assy FrLk k Bkwy 12 ckt 30 SAu
Datasheet
738In Stock
Min.: 1
Mult.: 1

Headers Breakaway 12 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) 41671 KK Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings KK 156 Header Assy F rLk Break 24 Ckt sGo
Datasheet
761In Stock
Min.: 1
Mult.: 1

Headers Breakaway 24 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) 41671 KK Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings KK 156 Header Assy F rLk Break 03 Ckt sGo
Datasheet
4.447In Stock
Min.: 1
Mult.: 1

Headers Breakaway 3 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Gold 11.43 mm (0.45 in) 5.38 mm (0.212 in) 41672 KK - 40 C + 80 C Bulk
Molex Headers & Wire Housings KK 156 Hdr Assy FrLk k RtAn 6Ckt 30 SGold
Datasheet
1.765In Stock
Min.: 1
Mult.: 1

Headers Locking 6 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 156 KK Bkwy Hdr RA S Hdr RA SqP Tin 20Ckt
Datasheet
981In Stock
Min.: 1
Mult.: 1

Headers Shrouded 20 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 14.88 mm (0.586 in) 3.05 mm (0.12 in) 41662 KK
Molex Headers & Wire Housings 5.08mm KK HSG 10Ckt White GW Capable
Datasheet
4.134In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 10 Position 5.08 mm (0.2 in) 1 Row Cable Mount / Free Hanging Crimp Socket (Female) 91813 KK Wire-to-Board, Power
Molex Headers & Wire Housings TRIFURCON TERMINAL 22-26A REEL OF 7000
Datasheet
Product Comments
7.000In Stock
Min.: 7.000
Mult.: 7.000
Reel: 7.000

Contacts Crimp Socket (Female) Gold 7258 KK Wire-to-Board, Power 26 AWG Reel
Molex Headers & Wire Housings 2 POS RECEPT .156 R/A PCB GOLD
Datasheet
3.350In Stock
Min.: 1
Mult.: 1

Headers Socket Assembly 2 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Right Angle Socket (Female) Gold 41815 KK Tray
Molex Headers & Wire Housings KK 100 PCB Assy Top 06 Ckt Tin
Datasheet
2.847In Stock
Min.: 1
Mult.: 1

Headers Receptacle 6 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 3.35 mm (0.132 in) 4455 KK Board-to-Board, Signal - 40 C + 80 C Tray
Molex Headers & Wire Housings 14 CKT HEADER
Datasheet
4.050In Stock
Min.: 1
Mult.: 1

Headers Pin Strip 14 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 Bulk
Molex Headers & Wire Housings .098 HEADER
Datasheet
4.628In Stock
Min.: 1
Mult.: 1

Headers Shrouded 11 Position 2.5 mm (0.098 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 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

Molex Headers & Wire Housings KK 100 Hdr FrLk Vert 04 Ckt Tin
Datasheet
8.745In Stock
Min.: 1
Mult.: 1

Headers Locking 4 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 7.49 mm (0.295 in) 3.56 mm (0.14 in) 6373 KK - 40 C + 80 C Bulk
Molex Headers & Wire Housings .100 KK HEADER
Datasheet
2.692In Stock
Min.: 1
Mult.: 1

Headers Locking 8 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 7395 KK Wire-to-Board, Signal - 40 C + 105 C Bulk
Molex Headers & Wire Housings R/A PCB HDR 11 GOLD FRICTION LOCK
Datasheet
2.326In Stock
Min.: 1
Mult.: 1

Headers Locking 11 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Gold 6.71 mm (0.264 in) 3.58 mm (0.141 in) 7478 KK Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings 14 POSITION HEADER
Datasheet
1.394In Stock
Min.: 1
Mult.: 1

Headers Locking 14 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Gold 7478 KK Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings KK 100 PCB Assy Top 04 Ckt Gold
Datasheet
1.930In Stock
Min.: 1
Mult.: 1

Headers Socket Assembly 4 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Socket (Female) Gold 3.35 mm (0.132 in) 4455 KK Board-to-Board, Signal - 40 C + 80 C Tray
Molex Headers & Wire Housings 2.54MM BOARD CONN Top Entry 6 CKT
Datasheet
1.392In 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) 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 FrLk Vert 03 Ckt Tin
Datasheet
8.654In 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 6.6 mm (0.26 in) 4.45 mm (0.175 in) 6373 KK Wire-to-Board, Signal - 40 C + 80 C
Molex Headers & Wire Housings 11CKT BRKWY HDR VERT
Datasheet
4.475In Stock
Min.: 1
Mult.: 1

Headers Breakaway 11 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 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
20.445In 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 42375 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings BKWY HDR STR 4P tin
Datasheet
18.899In Stock
Min.: 1
Mult.: 1

Headers Breakaway 4 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 42376 KK Bulk
Molex Headers & Wire Housings BKWY HDR R/A 11P tin
Datasheet
5.781In Stock
Min.: 1
Mult.: 1

Headers Breakaway 11 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 6.2 mm (0.244 in) 3.05 mm (0.12 in) 42377 KK Bulk
Molex Headers & Wire Housings 2.54MM BREAKAWAY RA 18 CKT Tin
Datasheet
1.895In Stock
Min.: 1
Mult.: 1

Headers Breakaway 18 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 8.23 mm (0.324 in) 3.05 mm (0.12 in) 42377 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C Bulk