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 (SGD) 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 TERM 18-24G Reel of 7000
Datasheet
Product Comments
329,000In Stock
Min.: 7,000
Mult.: 7,000
: 7,000

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Tin 2478 KK Wire-to-Board, Power 24 AWG to 18 AWG - 40 C + 80 C Reel
Molex Headers & Wire Housings KK TERM 22-30G Reel of 10000
Datasheet
Product Comments
760,000In Stock
680,000Expected 15/10/2026
Min.: 10,000
Mult.: 10,000
: 10,000

Contacts Crimp Socket (Female) Tin 2759 KK Wire-to-Board, Power 30 AWG Reel
Molex Headers & Wire Housings TERMINAL, 18-24AWG BULK
Datasheet
Product Comments
25,504In Stock
Min.: 1
Mult.: 1

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Gold 2478 KK 24 AWG to 18 AWG - 40 C + 80 C Bulk
Molex Headers & Wire Housings KK Hdr RA 2 Ckt 2.54mm Pitch 15um Au
Datasheet
30,551In 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 6.73 mm (0.265 in) 2.54 mm (0.1 in) 171857 KK Wire-to-Board - 40 C + 105 C Bulk
Molex Headers & Wire Housings 2.5MM VERT 3P HDR W/FRICTION RAMP AU
Datasheet
34,441In 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 14 POSITION HEADER
Datasheet
6,044In 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) Gold 7478 KK Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings VERT PCB HDR 2P TIN FRICTION LOCK
Datasheet
188,931In Stock
Min.: 1
Mult.: 1

Headers Locking 2 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 6373 KK Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings VERT PCB HDR 4P TIN FRICTION LOCK
Datasheet
139,564In Stock
Min.: 1
Mult.: 1

Headers Locking 4 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 6373 KK Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings HOUSING LOCK HEADER
Datasheet
41,025In 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 3.56 mm (0.14 in) 6410 KK Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings VERT PCB HDR 4P TIN FRICTION LOCK
Datasheet
73,753In 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 41791 KK Wire-to-Board, Power - 40 C + 80 C Bulk

Molex Headers & Wire Housings 4P VERT HDR W/FL
Datasheet
203,976In Stock
Min.: 1
Mult.: 1

Headers Locking 4 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 47053 KK Bulk
Molex Headers & Wire Housings CRIMP TERMINAL 22-30 AWG
Datasheet
76,616In Stock
Min.: 1
Mult.: 1

Contacts Crimp Socket (Female) Tin 2759 KK 30 AWG Bulk
Molex Headers & Wire Housings TERMINAL 18-20 BULK
Datasheet
Product Comments
57,828In Stock
Min.: 1
Mult.: 1

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Tin 6838 KK 20 AWG to 18 AWG - 40 C + 80 C Bulk
Molex Headers & Wire Housings TERMINAL 18-20 BULK
Datasheet
Product Comments
98,415In Stock
Min.: 1
Mult.: 1

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Tin 6838 KK 20 AWG to 18 AWG - 40 C + 105 C Bulk
Molex Headers & Wire Housings KK TERM 18-24G Reel of 7000
Datasheet
Product Comments
42,000In Stock
Min.: 7,000
Mult.: 7,000
: 7,000

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Gold 2478 KK Power 24 AWG to 18 AWG - 40 C + 85 C Reel
Molex Headers & Wire Housings TERMINAL 22-26 BULK
Datasheet
6,932In Stock
Min.: 1
Mult.: 1

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Gold 2578 KK 26 AWG to 22 AWG - 40 C + 105 C Bulk
Molex Headers & Wire Housings KK .156" CRMP 18-20 AWG FE
Datasheet
Product Comments
56,000In Stock
Min.: 7,000
Mult.: 7,000
: 7,000

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Gold 2478 KK Wire-to-Board, Power 24 AWG to 18 AWG - 40 C + 105 C Reel
Molex Headers & Wire Housings SOCKET 18-24AWG BULK
Datasheet
Product Comments
14,423In Stock
31,100On Order
Min.: 1
Mult.: 1

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Gold 2478 KK 24 AWG to 18 AWG - 40 C + 105 C Bulk
Molex Headers & Wire Housings CRIMP TERMINAL BULK
Datasheet
Product Comments
50,905In Stock
93,600Expected 20/11/2026
Min.: 1
Mult.: 1

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Tin 41572 KK 30 AWG to 22 AWG - 40 C + 105 C Bulk
Molex Headers & Wire Housings TERMINAL 22-30 REEL Reel of 10000
Datasheet
Product Comments
20,000In Stock
Min.: 10,000
Mult.: 10,000
: 10,000

Contacts Crimp Socket (Female) Gold 6459 KK Signal 30 AWG Reel
Molex Headers & Wire Housings 28-22 AWG CRIMP TERM Reel of 12000
Datasheet
Product Comments
36,000In Stock
Min.: 12,000
Mult.: 12,000
: 12,000

Contacts Crimp Socket (Female) Tin 5159 KK Signal 28 AWG Reel
Molex Headers & Wire Housings 4 POS RECEPT .156 TOP PCB GOLD
Datasheet
4,141In Stock
Min.: 1
Mult.: 1

Headers Socket Assembly 4 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Socket (Female) Gold 41815 KK Tray
Molex Headers & Wire Housings 8P RT ANGLE PCB
Datasheet
1,193In Stock
Min.: 1
Mult.: 1

Headers Receptacle 8 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 HEADER 8P
Datasheet
1,427In Stock
Min.: 1
Mult.: 1

Headers Socket Assembly 8 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Socket (Female) Gold 41815 KK Tray
Molex Headers & Wire Housings .156 KK PCB CONNECTO
Datasheet
7,026In Stock
Min.: 1
Mult.: 1

Headers Receptacle 5 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Socket (Female) Tin 41815 KK - 40 C + 105 C Tray