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 Rows
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Termination Style
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Mating Post Length
Termination Post Length
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Packaging
Molex Headers & Wire Housings VERT B/A HDR 4P TIN SQUARE PIN
Datasheet
Product Comments
888In Stock
Min.: 1
Mult.: 1

Headers Breakaway 4 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 41661 KK Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings R/A B/A HDR 4P TIN FRICTION LOCK
Datasheet
2,135In Stock
Min.: 1
Mult.: 1

Headers Breakaway 4 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 41672 KK Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings R/A B/A HDR 5P TIN FRICTION LOCK
Datasheet
2,724In Stock
6,300Expected 11/11/2026
Min.: 1
Mult.: 1

Headers Breakaway 5 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 11.43 mm (0.45 in) 5.38 mm (0.212 in) 41672 KK Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings R/A B/A HDR 7P TIN SQUARE PIN
Datasheet
3,000In Stock
Min.: 1
Mult.: 1

Headers Breakaway 7 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 14.55 mm (0.573 in) 4.95 mm (0.195 in) 41662 KK Bulk
Molex Headers & Wire Housings VERT B/A HDR 9P TIN FRICTION LOCK
Datasheet
272In Stock
Min.: 1
Mult.: 1

Headers Breakaway 9 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 41671 KK Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings VERT B/A HDR 10P TIN FRICTION LOCK
Datasheet
933In Stock
Min.: 1
Mult.: 1

Headers Breakaway 10 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 41671 KK Board-to-Board, Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings R/A B/A HDR 10P TIN FRICTION LOCK
Datasheet
137In Stock
Min.: 1
Mult.: 1

Headers Breakaway 10 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 11.43 mm (0.45 in) 5.38 mm (0.212 in) 41672 KK Board-to-Board, Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings VERT B/A HDR 12P TIN SQUARE PIN
Datasheet
39In Stock
Min.: 1
Mult.: 1

Headers Breakaway 12 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 41661 KK Bulk
Molex Headers & Wire Housings R/A B/A HDR 24 GOLD SQUARE PIN
Datasheet
19In Stock
10Expected 9/3/2026
Min.: 1
Mult.: 1

Headers Breakaway 24 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Gold 41662 KK Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings KK 156 Header Assy F FrLk Bkwy 08 ckt Tin
Datasheet
633In Stock
Min.: 1
Mult.: 1

Headers Unshrouded 8 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 11.43 mm (0.45 in) 4.37 mm (0.172 in) 41671 KK
Molex Headers & Wire Housings KK 156 Hdr Assy Flat Flat Bkwy 04 ckt Tin
Datasheet
250In Stock
Min.: 1
Mult.: 1

Headers Unshrouded 4 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 41661 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings VERT PCB HDR 3P TIN W/O PEGS
Datasheet
211In Stock
Min.: 1
Mult.: 1

Headers Unshrouded 3 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 41771 KK Board-to-Board, Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings KK 156 Hdr Assy Tin Hdr Assy Tin 04 Ckt
Datasheet
107In Stock
Min.: 1
Mult.: 1

Headers Unshrouded 4 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 16.97 mm (0.668 in) 3.61 mm (0.142 in) 41771 KK Board-to-Board, Wire-to-Board, Power - 40 C + 80 C
Molex Headers & Wire Housings HDR VERT W/O PEGS 6
Datasheet
87In Stock
Min.: 1
Mult.: 1

Headers Unshrouded 6 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 41771 KK Board-to-Board, Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings KK 156 Hdr Assy Tin Hdr Assy Tin 07 Ckt
Datasheet
292In Stock
Min.: 1
Mult.: 1

Headers Unshrouded 7 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) 41771 KK Board-to-Board, Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings VERT SOLID HDR 10P without pegs
Datasheet
211In Stock
Min.: 1
Mult.: 1

Headers Unshrouded 10 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 41771 KK Board-to-Board, Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings KK 156 Hdr Assy Tin Hdr Assy Tin 13 Ckt
Datasheet
189In Stock
Min.: 1
Mult.: 1

Headers Unshrouded 13 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) 41771 KK Board-to-Board, Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings 05 CKT R/A HEADER without pegs
Datasheet
554In Stock
Min.: 1
Mult.: 1

Headers Pin Strip 5 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 41772 KK Bulk
Molex Headers & Wire Housings 8POS RT ANGLE HEADER
Datasheet
141In Stock
Min.: 1
Mult.: 1

Headers Unshrouded 8 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 14.86 mm (0.585 in) 3.56 mm (0.14 in) 41772 KK Board-to-Board, Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings KK 156 Hdr Assy RtAn 08 Ckt
Datasheet
891In Stock
Min.: 1
Mult.: 1

Headers Unshrouded 8 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 14.81 mm (0.583 in) 4.37 mm (0.172 in) 41772 KK Board-to-Board, Wire-to-Board, Power - 40 C + 80 C
Molex Headers & Wire Housings 10 CKT R/A HEADER without pegs
Datasheet
9In Stock
Min.: 1
Mult.: 1

Headers Unshrouded 10 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 14.86 mm (0.585 in) 3.56 mm (0.14 in) 41772 KK Board-to-Board, Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings VERT PCB HDR 11P TIN FRICTION LOCK
Datasheet
659In Stock
Min.: 1
Mult.: 1

Headers Shrouded 11 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 41791 KK Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings 13C HEADER
Datasheet
1,068In Stock
2,160Expected 8/28/2026
Min.: 1
Mult.: 1

Headers Shrouded 13 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 41791 KK Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings R/A PCB HDR 9P TIN FRICTION LOCK
Datasheet
183In Stock
Min.: 1
Mult.: 1

Headers Locking 9 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 41792 KK Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings R/A PCB HDR 12P TIN FRICTION LOCK
Datasheet
198In Stock
Min.: 1
Mult.: 1

Headers Locking 12 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 41792 KK Wire-to-Board, Power - 40 C + 80 C Bulk