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 (JPY) 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 CAT EAR CRIMP TERMINAL
Datasheet
17,102In Stock
48,000Expected 9/25/2026
Min.: 1
Mult.: 1

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Tin 5159 KK 28 AWG to 22 AWG - 40 C + 105 C Bulk
Molex Headers & Wire Housings 9 POS RECEPT .156 R/A PCB TIN
Datasheet
3,523In Stock
Min.: 1
Mult.: 1

Headers Receptacle 9 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 .156 KK PCB CONNECTO
Datasheet
3,327In Stock
8,008Expected 10/7/2026
Min.: 1
Mult.: 1

Headers Receptacle 6 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Right Angle Socket (Female) Tin 41815 KK - 40 C + 80 C
Molex Headers & Wire Housings 3 POS PCB RECEPTACLE
Datasheet
3,897In Stock
Min.: 1
Mult.: 1

Headers Receptacle 3 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Socket (Female) Gold 41815 KK - 40 C + 80 C Tray
Molex Headers & Wire Housings 3 POS RECEPT .156 R/A PCB GOLD
Datasheet
4,099In Stock
Min.: 1
Mult.: 1

Headers Receptacle 3 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 + 80 C Tray
Molex Headers & Wire Housings 5 POS RECEPT .156 TOP PCB GOLD
Datasheet
5,059In Stock
Min.: 1
Mult.: 1

Headers Socket Assembly 5 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 41815 KK Tray
Molex Headers & Wire Housings 12CKT PCB TOP ENTRY
Datasheet
690In Stock
Min.: 1
Mult.: 1

Headers Receptacle 12 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Socket (Female) Gold 41815 KK - 40 C + 80 C Tray
Molex Headers & Wire Housings KK 156 PCB Assy RtAn 13 Ckt Gold
Datasheet
1,353In Stock
Min.: 1
Mult.: 1

Headers Receptacle 13 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Right Angle Socket (Female) Gold 41815 KK - 40 C + 80 C Tray
Molex Headers & Wire Housings 10 POS RECEPT .156 TOP PCB TIN
Datasheet
2,092In Stock
Min.: 1
Mult.: 1

Headers Socket Assembly 10 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 Tray
Molex Headers & Wire Housings HSG 6P W/RAMP/RIBS
Datasheet
Product Comments
11,102In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 6 Position 3.96 mm (0.156 in) 1 Row Cable Mount / Free Hanging Crimp Socket (Female) 41695 KK Wire-to-Board, Power Bulk
Molex Headers & Wire Housings .156 SPOX HEADER
Datasheet
9,101In Stock
Min.: 1
Mult.: 1

Headers Receptacle 5 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 5273 KK, SPOX - 40 C + 105 C Bulk
Molex Headers & Wire Housings 6P F/L HEADER
Datasheet
13,322In Stock
Min.: 1
Mult.: 1

Headers Receptacle 6 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 5273 KK, SPOX - 40 C + 105 C Bulk
Molex Headers & Wire Housings HOUSING KK .156IN GWT 3 ckt
Datasheet
31,408In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 3 Position 3.96 mm (0.156 in) 1 Row Cable Mount / Free Hanging Crimp Straight Socket (Female) 3069 KK Bulk
Molex Headers & Wire Housings 3P VERT HDR RND PIN
Datasheet
11,185In Stock
Min.: 1
Mult.: 1

Headers Unshrouded 3 Position 5.08 mm (0.2 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 3003 KK Bulk
Molex Headers & Wire Housings HSG HIGH PRESSURE 4P
Datasheet
33,758In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 4 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 Hdr Vrt 3 Ckt 3.96mm Pitch Sn
Datasheet
8,446In 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 11.38 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 4 Ckt 3.96mm Pitch Sn
Datasheet
9,441In 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 11.38 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 2 Ckt 2.54mm Pitch Sn
Datasheet
15,896In Stock
34,200Expected 12/3/2026
Min.: 1
Mult.: 1

Headers Locking 2 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 4 Ckt 2.54mm Pitch Sn
Datasheet
22,072In 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 7.44 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 4 Ckt 2.54mm Pitch 15um Au
Datasheet
6,674In Stock
Min.: 1
Mult.: 1

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 Bulk
Molex Headers & Wire Housings KK RPC 100 Hdr FrLk Vert 03 Ckt Tin T&R
Datasheet
2,890In Stock
Min.: 1
Mult.: 1
: 1,050

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 Reel, Cut Tape
Molex Headers & Wire Housings KK Hdr RA 3 Ckt 2.54mm Pitch 15um Au
Datasheet
4,902In Stock
Min.: 1
Mult.: 1

Headers Locking 3 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 Hdr RA 8 Ckt 2.54mm Pitch 15um Au
Datasheet
2,001In 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) 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 03 Ckt Tin T&R
Datasheet
4,790In Stock
Min.: 1
Mult.: 1
: 3,300

Headers Locking 3 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 .098 KK HOUSING
Datasheet
54,535In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 3 Position 2.5 mm (0.098 in) 1 Row Cable Mount / Free Hanging Crimp Socket (Female) 5051 KK Wire-to-Board, Signal - 40 C + 105 C Bulk