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 (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Product
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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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Packaging
Molex Headers & Wire Housings R/A PCB HDR 7P TIN FRICTION LOCK
Datasheet
3,875In Stock
Min.: 1
Mult.: 1

Headers Locking 7 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 3.58 mm (0.141 in) 7478 KK Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings R/A PCB HDR 8P TIN FRICTION LOCK
Datasheet
5,818In 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 3.58 mm (0.141 in) 7478 KK Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings R/A PCB HDR 9P TIN FRICTION LOCK
Datasheet
2,823In Stock
Min.: 1
Mult.: 1

Headers Locking 9 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 3.58 mm (0.141 in) 7478 KK Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings R/A PCB HDR 10P TIN FRICTION LOCK
Datasheet
6,903In Stock
Min.: 1
Mult.: 1

Headers Locking 10 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 3.58 mm (0.141 in) 7478 KK Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings 14 CKT R/A F/L HDR
Datasheet
3,813In 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) 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 HEADER R.A. 2P
Datasheet
20,977In 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) Tin 3.5 mm (0.138 in) 7395 KK Wire-to-Board, Signal - 40 C + 105 C Bulk
Molex Headers & Wire Housings R/A PCB HDR 5P FRICTION LOCK
Datasheet
5,350In Stock
Min.: 1
Mult.: 1

Headers Locking 5 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 3.5 mm (0.138 in) 7395 KK Wire-to-Board, Signal - 40 C + 105 C Bulk
Molex Headers & Wire Housings 6 CKT R/A F/L HDR
Datasheet
5,754In Stock
17,100Expected 14/07/2026
Min.: 1
Mult.: 1

Headers Locking 6 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 3.5 mm (0.138 in) 7395 KK Wire-to-Board, Signal 22 AWG - 40 C + 105 C Bulk
Molex Headers & Wire Housings VERT PCB HDR 3P GOLD PLATING
Datasheet
20,464In Stock
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 KK 100 Hdr Flat VERT 20 Au 5Ckt
Datasheet
7,802In 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 KK2.5MM FL WAF.ASS. GOLD 504502AG
Datasheet
13,237In Stock
35,000Expected 25/05/2026
Min.: 1
Mult.: 1

Headers Locking 2 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 2.5MM VERT 3P HDR W/FRICTION RAMP AU
Datasheet
12,856In Stock
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 2.5MM VERT 4P HDR W/FRICTION RAMP AU
Datasheet
3,752In Stock
20,000Expected 27/02/2026
Min.: 1
Mult.: 1

Headers Locking 4 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 VERT PCB HDR 2P GOLD FRICTION LOCK
Datasheet
12,442In Stock
34,200Expected 02/06/2026
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 Bulk

Molex Headers & Wire Housings KK 100 Hdr FrLk Vert 02 Ckt Gold
Datasheet
16,372In 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 7.49 mm (0.295 in) 3.56 mm (0.14 in) 6373 KK
Molex Headers & Wire Housings VERT PCB HDR 4P GOLD FRICTION LOCK
Datasheet
37,656In 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 6373 KK Wire-to-Board, Signal - 40 C + 80 C Bulk

Molex Headers & Wire Housings KK 100 Hdr FrLk Vert 04 Ckt Gold
Datasheet
7,131In 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
11,583In Stock
28,500Expected 06/07/2026
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 7P GOLD FRICTION LOCK
Datasheet
15,021In 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 8P GOLD FRICTION LOCK
Datasheet
9,150In Stock
11,864Expected 22/06/2026
Min.: 1
Mult.: 1

Headers Locking 8 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 10 GOLD FRICTION LOCK
Datasheet
3,096In Stock
8,550Expected 28/07/2026
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 12 GOLD FRICTION LOCK
Datasheet
5,975In 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 13P HEADER GOLD
Datasheet
1,572In Stock
Min.: 1
Mult.: 1

Headers Locking 13 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 16P HEADER
Datasheet
811In Stock
Min.: 1
Mult.: 1

Headers Locking 16 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 R/A PCB HDR 3P GOLD FRICTION LOCK
Datasheet
15,832In 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 7478 KK Wire-to-Board, Signal - 40 C + 80 C Bulk