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 8CKT HOUSING
Datasheet
5,941In Stock
24,000Expected 22/10/2026
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 8 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 100 Housing Crimp Pol Ramp 8 Ckt
Datasheet
5,543In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 8 Position 2.54 mm (0.1 in) 1 Row Cable Mount / Free Hanging Crimp Straight 7880 KK
Molex Headers & Wire Housings 9P HIGH PRESSURE
Datasheet
15,617In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 9 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 12P TERM HOUSING
Datasheet
8,457In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 12 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 HOUSING 15P
Datasheet
5,752In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 15 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 POLARIZING KEY
Datasheet
26,282In Stock
Min.: 1
Mult.: 1

Accessories 1 Position Straight Pin (Male) Tin 4161 KK Bulk
Molex Headers & Wire Housings KK Hdr Vrt 2 Ckt 3.96mm Pitch Sn
Datasheet
3,211In Stock
Min.: 1
Mult.: 1

Headers Locking 2 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 KK Hdr Vrt 8 Ckt 3.96mm Pitch Sn
Datasheet
1,183In Stock
Min.: 1
Mult.: 1

Headers Locking 8 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 KK RPC 156 Hdr Assy FrLk 02 Ckt Tin T&R
Datasheet
1,211In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 500

Headers Locking 2 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 Reel, Cut Tape, MouseReel
Molex Headers & Wire Housings KK RPC 156 Hdr Assy FrLk 03 Ckt Tin T&R
Datasheet
154In Stock
1,500Expected 15/9/2026
Min.: 1
Mult.: 1
: 500

Headers Locking 3 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 Reel, Cut Tape
Molex Headers & Wire Housings KK RPC 156 Hdr Assy FrLk 06 Ckt Tin T&R
Datasheet
492In Stock
1,500Expected 26/11/2026
Min.: 1
Mult.: 1
: 500

Headers Locking 6 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 Reel, Cut Tape
Molex Headers & Wire Housings KK RPC 156 Hdr Assy FrLk 03 Ckt 15Au T&R
Datasheet
535In Stock
Min.: 1
Mult.: 1
: 500

Headers Locking 3 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 11.38 mm (0.448 in) 2.37 mm (0.093 in) 171813 KK Wire-to-Board - 40 C + 105 C Reel, Cut Tape
Molex Headers & Wire Housings KK RPC 156 Hdr Assy FL RA 02 Ckt Tin T&R
Datasheet
2,103In Stock
Min.: 1
Mult.: 1
: 840

Headers Locking 2 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 Reel, Cut Tape
Molex Headers & Wire Housings KK RPC 156 Hdr Assy FL RA 06 Ckt Tin T&R
Datasheet
964In Stock
Min.: 1
Mult.: 1
: 840

Headers Locking 6 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 Reel, Cut Tape
Molex Headers & Wire Housings KK RPC 156 Hdr Assy FL RA 04Ckt 15Au T&R
Datasheet
209In Stock
Min.: 1
Mult.: 1
: 840

Headers Locking 4 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Gold 11.33 mm (0.446 in) 2.54 mm (0.1 in) 171814 KK Wire-to-Board - 40 C + 105 C Reel, Cut Tape
Molex Headers & Wire Housings KK Hdr Vrt 3 Ckt 2.54mm Pitch Sn
Datasheet
1,880In 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 7.44 mm (0.293 in) 2.34 mm (0.092 in) 171856 KK Wire-to-Board - 40 C + 105 C Bulk
Molex Headers & Wire Housings KK Hdr Vrt 6 Ckt 2.54mm Pitch Sn
Datasheet
4,082In Stock
11,400Expected 10/12/2026
Min.: 1
Mult.: 1

Headers Locking 6 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 KK Hdr Vrt 7 Ckt 2.54mm Pitch Sn
Datasheet
645In Stock
Min.: 1
Mult.: 1

Headers Locking 7 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 KK Hdr Vrt 9 Ckt 2.54mm Pitch Sn
Datasheet
1,188In Stock
Min.: 1
Mult.: 1

Headers Locking 9 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 KK Hdr Vrt 10 Ckt 2.54mm Pitch Sn
Datasheet
1,935In Stock
Min.: 1
Mult.: 1

Headers Locking 10 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 KK Hdr Vrt 3 Ckt 2.54mm Pitch 15um Au
Datasheet
8In Stock
22,800Expected 31/12/2026
Min.: 1
Mult.: 1

Headers Locking 3 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 7.44 mm (0.293 in) 2.34 mm (0.092 in) 171856 KK Wire-to-Board - 40 C + 105 C Bulk
Molex Headers & Wire Housings KK Hdr Vrt 6 Ckt 2.54mm Pitch 15um Au
Datasheet
829In Stock
Min.: 1
Mult.: 1

Headers Locking 6 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 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 KK Hdr Vrt 7 Ckt 2.54mm Pitch 15um Au
Datasheet
815In Stock
Min.: 1
Mult.: 1

Headers Locking 7 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 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 KK RPC 100 Hdr FrLk Vert 08 Ckt Tin T&R
Datasheet
6In Stock
Min.: 1
Mult.: 1
: 1,050

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 Reel, Cut Tape
Molex Headers & Wire Housings KK RPC 100 Hdr FrLk Vert04 Ckt 15Au T&R
Datasheet
304In Stock
Min.: 1
Mult.: 1
: 1,050

Headers Locking 4 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 7.44 mm (0.293 in) 2.34 mm (0.092 in) 171856 KK Wire-to-Board - 40 C + 105 C Reel, Cut Tape