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
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Number of Positions
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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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Wire Gauge
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Packaging
Molex Headers & Wire Housings VERT PCB HDR 3P GOLD PLATING
Datasheet
7,292In Stock
40,000Expected 11/5/2026
Min.: 1
Mult.: 1

Headers Pin Strip 3 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 4030 KK Bulk
Molex Headers & Wire Housings VERT PCB HDR 4P GOLD PLATING
Datasheet
6,603In Stock
Min.: 1
Mult.: 1

Headers Pin Strip 4 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 4030 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings VERT PCB HDR 5P GOLD PLATING
Datasheet
4,177In Stock
Min.: 1
Mult.: 1

Headers Pin Strip 5 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 4030 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings KK 100 Hdr Flat VERT 20 Au 5Ckt
Datasheet
2,530In Stock
Min.: 1
Mult.: 1

Headers Pin Strip 5 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 11.05 mm (0.435 in) 3.18 mm (0.125 in) 4030 KK
Molex Headers & Wire Housings VERT PCB HDR 9P GOLD PLATING
Datasheet
8,791In Stock
Min.: 1
Mult.: 1

Headers Pin Strip 9 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 7.49 mm (0.295 in) 3.43 mm (0.135 in) 4030 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings 2.5MM VERT 3P HDR W/FRICTION RAMP AU
Datasheet
10,961In Stock
23,500Expected 8/28/2026
Min.: 1
Mult.: 1

Headers Locking 3 Position 2.5 mm (0.098 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 5045 Mini-Latch/KK Wire-to-Board, Signal - 40 C + 105 C Bulk
Molex Headers & Wire Housings KK2.5MM FL WAF.ASS. GOLD 504510AG
Datasheet
2,042In Stock
Min.: 1
Mult.: 1

Headers Locking 10 Position 2.5 mm (0.098 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 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 02 Ckt Gold
Datasheet
23,807In Stock
Min.: 1
Mult.: 1

Headers Locking 2 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 6373 KK Wire-to-Board, Signal - 40 C + 80 C
Molex Headers & Wire Housings VERT PCB HDR 3P GOLD FRICTION LOCK
Datasheet
11,824In Stock
125,400Expected 12/22/2026
Min.: 1
Mult.: 1

Headers Locking 3 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 6373 KK Bulk

Molex Headers & Wire Housings KK 100 Hdr FrLk Vert 04 Ckt Gold
Datasheet
5,981In 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 8.08 mm (0.318 in) 4.75 mm (0.187 in) 6373 KK Wire-to-Board, Signal - 40 C + 80 C
Molex Headers & Wire Housings VERT PCB HDR 5P GOLD FRICTION LOCK
Datasheet
27,126In Stock
Min.: 1
Mult.: 1

Headers Locking 5 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 6373 KK Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings VERT PCB HDR 6P GOLD FRICTION LOCK
Datasheet
17,169In 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 6373 KK Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings VERT PCB HDR 7P GOLD FRICTION LOCK
Datasheet
11,135In 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 6373 KK Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings VERT PCB HDR 9P GOLD FRICTION LOCK
Datasheet
2,475In Stock
Min.: 1
Mult.: 1

Headers Locking 9 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 Bulk
Molex Headers & Wire Housings VERT PCB HDR 10 GOLD FRICTION LOCK
Datasheet
6,987In Stock
Min.: 1
Mult.: 1

Headers Locking 10 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 Bulk
Molex Headers & Wire Housings VERT PCB HDR 11 GOLD FRICTION LOCK
Datasheet
1,075In Stock
Min.: 1
Mult.: 1

Headers Locking 11 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 3.56 mm (0.14 in) 6373 KK Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings VERT PCB HDR 12 GOLD FRICTION LOCK
Datasheet
4,579In Stock
Min.: 1
Mult.: 1

Headers Locking 12 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 3.56 mm (0.14 in) 6373 KK Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings R/A PCB HDR 2P GOLD FRICTION LOCK
Datasheet
29,268In 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 7478 KK Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings R/A PCB HDR 3P GOLD FRICTION LOCK
Datasheet
6,178In Stock
22,800Expected 11/18/2026
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 7478 KK Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings R/A PCB HDR 4P GOLD FRICTION LOCK
Datasheet
19,106In Stock
Min.: 1
Mult.: 1

Headers Locking 4 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 R/A PCB HDR 5P GOLD FRICTION LOCK
Datasheet
2,254In Stock
17,100Expected 11/2/2026
Min.: 1
Mult.: 1

Headers Locking 5 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 RT ANGLE HEADER 6P
Datasheet
4,856In Stock
Min.: 1
Mult.: 1

Headers Pin Strip 6 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Gold 9.37 mm (0.369 in) 3.15 mm (0.124 in) 4094 KK Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings R/A PCB HDR 6P GOLD FRICTION LOCK
Datasheet
9,307In Stock
Min.: 1
Mult.: 1

Headers Locking 6 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 2.54MM KK RT AGL HDR
Datasheet
8,354In 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 7395 KK Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings 2.54MM 4P RA HDR W/ FRCTN LOCK
Datasheet
11,583In Stock
Min.: 1
Mult.: 1

Headers Locking 4 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Gold 7395 KK Wire-to-Board, Signal - 40 C + 80 C Bulk