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 (CAD) 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 156 Crimp Housing Crimp Housing 08 Ckt
Datasheet
7,934In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 8 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 3.96mm KK Hdr Vt Pol Pol-W RPin VrA 8Ckt
Datasheet
Product Comments
2,493In Stock
Min.: 1
Mult.: 1

Headers Shrouded 8 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 R/A B/A HDR 6P TIN FRICTION LOCK
Datasheet
4,386In Stock
Min.: 1
Mult.: 1

Headers Breakaway 6 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 VERT PCB HDR 7P GOLD FRICTION LOCK
Datasheet
2,906In Stock
Min.: 1
Mult.: 1

Headers Locking 7 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 11.43 mm (0.45 in) 3.56 mm (0.14 in) 41791 KK Bulk
Molex Headers & Wire Housings VERT FRICTION LK 2 w/press-fit pegs
Datasheet
15,978In Stock
1,555Expected 2026-07-06
Min.: 1
Mult.: 1

Headers Locking 2 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) 42491 KK Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings 2.54MM 10P PCB CONN RA W/CAT EAR TERM
Datasheet
1,268In Stock
Min.: 1
Mult.: 1

Headers Socket Assembly 10 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Socket (Female) Tin 3.3 mm (0.13 in) 4455 KK Board-to-Board, Signal - 40 C + 105 C Tray
Molex Headers & Wire Housings KK 100 PCB Assy Top Assy Top 04 Ckt Tin
Datasheet
4,293In 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) Tin 3.3 mm (0.13 in) 4455 KK Board-to-Board, Signal - 40 C + 105 C Tray
Molex Headers & Wire Housings KK 156 Header Assy F rLk Break 14 Ckt Tin
Datasheet
1,078In Stock
Min.: 1
Mult.: 1

Headers Breakaway 14 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 - 40 C + 80 C
Molex Headers & Wire Housings KK TERM 22-30 AWG REEL of 10000
Datasheet
Product Comments
70,000In Stock
Min.: 10,000
Mult.: 10,000
Reel: 10,000

Contacts Crimp Socket (Female) Tin 2759 KK Signal 30 AWG Reel
Molex Headers & Wire Housings 0.062 DIA CHAIN Reel of 7000
Datasheet
Product Comments
35,000In Stock
Min.: 7,000
Mult.: 7,000
Reel: 7,000

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Tin 5005 KK 24 AWG to 18 AWG - 40 C + 105 C Reel
Molex Headers & Wire Housings KK 156 PCB Assy RtAn 04 Ckt Tin
Datasheet
5,416In Stock
Min.: 1
Mult.: 1

Headers Receptacle 4 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Right Angle Socket (Female) Tin 3.68 mm (0.145 in) 41815 KK - 40 C + 80 C
Molex Headers & Wire Housings 3 POS RECEPT .156 R/A PCB GOLD
Datasheet
6,699In 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 15P HEADER
Datasheet
574In Stock
Min.: 1
Mult.: 1

Headers Receptacle 15 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 3.96MM KK Term HSG 24P
Datasheet
2,987In Stock
Min.: 1
Mult.: 1

Wire Housings 24 Position 3.96 mm (0.156 in) 1 Row 2139 KK Bulk
Molex Headers & Wire Housings HSG 10P W/O LKG RAMP
Datasheet
Product Comments
9,182In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 10 Position 3.96 mm (0.156 in) 1 Row Cable Mount / Free Hanging Crimp Socket (Female) 2139 KK Bulk
Molex Headers & Wire Housings KK 156 Crimp Housing 07 Ckt
Datasheet
10,166In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 7 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 2 CKT 5.08MM KK HDR
Datasheet
7,066In Stock
Min.: 1
Mult.: 1

Headers Unshrouded 2 Position 5.08 mm (0.2 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 3003 KK Bulk
Molex Headers & Wire Housings KK Hdr Vrt 10 Ckt 3.96mm Pitch Sn
Datasheet
4,502In Stock
Min.: 1
Mult.: 1

Headers Locking 10 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 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
3,339In 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