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 (USD) 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 10POS FEMALE HOUSING FRICTION LOCK
Datasheet
7,203In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 10 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
Molex Headers & Wire Housings .100 KK HEADER
Datasheet
4,474In Stock
Min.: 1
Mult.: 1

Headers Pin Strip 10 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 11.05 mm (0.435 in) 3.18 mm (0.125 in) 4030 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C
Molex Headers & Wire Housings 8P R/A HEADER
Datasheet
5,001In Stock
Min.: 1
Mult.: 1

Headers Locking 8 Position 2.5 mm (0.098 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 7.5 mm (0.295 in) 3.4 mm (0.134 in) 5046 Mini-Latch/KK Wire-to-Board, Signal - 40 C + 105 C Bulk
Molex Headers & Wire Housings MiniLatch/KK HDR RA 9CKT W/Fric Lck SN
Datasheet
5,639In Stock
Min.: 1
Mult.: 1

Headers Locking 9 Position 2.5 mm (0.098 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 5046 Mini-Latch/KK - 40 C + 105 C Bulk

Molex Headers & Wire Housings HDR VERTICAL 20P
Datasheet
794In Stock
Min.: 1
Mult.: 1

Headers Locking 20 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 2.54MM BOARD CONN Top Entry 4 CKT
Datasheet
5,655In Stock
Min.: 1
Mult.: 1

Headers Socket Assembly 4 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Socket (Female) Gold 3.35 mm (0.132 in) 4455 KK Board-to-Board, Signal - 40 C + 80 C Tray
Molex Headers & Wire Housings KK 100 Hdr Assy Bkwy Bkwy 15 Ckt 15 SGold
Datasheet
3,337In Stock
Min.: 1
Mult.: 1

Headers Breakaway 15 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 6.09 mm (0.24 in) 3.18 mm (0.125 in) 42375 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings 36P 1 ROW VERT HDR
Datasheet
3,074In Stock
2,972Expected 2026/06/15
Min.: 1
Mult.: 1

Headers Breakaway 36 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 7.49 mm (0.295 in) 3.05 mm (0.12 in) 42375 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings KK 100 Hdr Assy Bkwy Bkwy 03 Ckt 15 SGold
Datasheet
25,695In Stock
Min.: 1
Mult.: 1

Headers Breakaway 3 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 42375 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings 2.54MM BREAKAWAY RA 3 CKT Gold
Datasheet
36,882In Stock
Min.: 1
Mult.: 1

Headers Breakaway 3 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Gold 42377 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings 2.54MM BREAKAWAY RA 9 CKT Gold
Datasheet
3,608In Stock
Min.: 1
Mult.: 1

Headers Breakaway 9 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Gold 8.23 mm (0.324 in) 3.05 mm (0.12 in) 42377 KK
Molex Headers & Wire Housings KK 100 Hdr Assy RA B y RA Bkwy 02 Ckt Ti
Datasheet
26,932In Stock
Min.: 1
Mult.: 1

Headers Breakaway 2 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 42377 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings KK 156 Crimp Housing Crimp Housing 05 Ck
Datasheet
14,373In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 5 Position 3.96 mm (0.156 in) 1 Row Cable Mount / Free Hanging Crimp Straight Socket (Female) 6442 KK Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings 3.96 MM KK VERT HDR
Datasheet
3,735In Stock
Min.: 1
Mult.: 1

Headers Shrouded 4 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 4.45 mm (0.175 in) 3190 KK Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings 6P STRAIGHT HEADER
Datasheet
2,623In Stock
Min.: 1
Mult.: 1

Headers Breakaway 6 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 11.43 mm (0.45 in) 4.37 mm (0.172 in) 41671 KK Wire-to-Board, Power - 40 C + 80 C
Molex Headers & Wire Housings 10P F/LK HEADER
Datasheet
1,154In Stock
Min.: 1
Mult.: 1

Headers Breakaway 10 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 11.43 mm (0.45 in) 4.37 mm (0.172 in) 41671 KK Wire-to-Board, Power - 40 C + 80 C
Molex Headers & Wire Housings KK 156 Hdr Assy Flat Flat Bkwy 24 ckt Tin
Datasheet
928In Stock
Min.: 1
Mult.: 1

Headers Unshrouded 24 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 32.56 mm (1.282 in) 3.81 mm (0.15 in) 41661 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings R/A PCB HDR 8P TIN FRICTION LOCK
Datasheet
5,345In Stock
Min.: 1
Mult.: 1

Headers Locking 8 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 KK 156 PCB Assy Bott y Bottom 02 Ckt Tin
Datasheet
6,245In Stock
Min.: 1
Mult.: 1

Headers Socket Assembly 2 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Socket (Female) Tin 3.18 mm (0.125 in) 41815 KK
Molex Headers & Wire Housings 3CKT BRKWY HDR
Datasheet
22,907In Stock
Min.: 1
Mult.: 1

Headers Breakaway 3 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 42375 KK - 40 C + 105 C
Molex Headers & Wire Housings Hsg W/LRamp 3Ckt 26 mp 3Ckt 2695 -3RP-BK
Datasheet
51,580In Stock
Min.: 1
Mult.: 1

Headers Shrouded 3 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 2695 KK Wire-to-Board, Signal - 40 C + 105 C Bulk

Molex Headers & Wire Housings 2CKT VERT HDR
Datasheet
11,616In Stock
Min.: 1
Mult.: 1

Headers Shrouded 2 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 7.26 mm (0.286 in) 7.34 mm (0.289 in) 6373 KK Wire-to-Board, Signal - 40 C + 105 C
Molex Headers & Wire Housings KK 156 TRM CRP 18-22 AWG ANTIFISH GOLD
Datasheet
23,168In Stock
Min.: 1
Mult.: 1

Contacts Crimp Socket (Female) Gold 8818 KK 22 AWG Bulk
Molex Headers & Wire Housings CRIMP TERM 22-30 GLD phos. bronze
Datasheet
13,110In Stock
Min.: 1
Mult.: 1

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Gold 6459 KK 30 AWG to 22 AWG - 40 C + 105 C Bulk
Molex Headers & Wire Housings HSG 3P W/O LKG RAMP
Datasheet
Product Comments
56,887In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 3 Position 3.96 mm (0.156 in) 1 Row Cable Mount / Free Hanging Crimp Socket (Female) 2139 KK Bulk