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 VERT B/A HDR 3P TIN FRICTION LOCK
Datasheet
5,840In Stock
Min.: 1
Mult.: 1

Headers Breakaway 3 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
1,133In 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 HDR VT 1X20P .156 450/172 SN
Datasheet
1,730In Stock
Min.: 1
Mult.: 1

Headers Breakaway 20 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 Bulk
Molex Headers & Wire Housings KK 100 PCB Assy RtAn 12 Ckt Tin
Datasheet
1,559In Stock
Min.: 1
Mult.: 1

Headers Socket Assembly 12 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 Btm Assy Btm 05 Ckt Tin
Datasheet
3,157In Stock
Min.: 1
Mult.: 1

Headers Socket Assembly 5 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Bottom Entry Socket (Female) Tin 3.3 mm (0.13 in) 4455 KK Board-to-Board, Signal - 40 C + 105 C Tray
Molex Headers & Wire Housings 3.96 MM KK VERT HDR
Datasheet
5,985In Stock
Min.: 1
Mult.: 1

Headers Locking 3 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 Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings KK .100" HSG 04P
Datasheet
89,505In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 4 Position 2.54 mm (0.1 in) 1 Row Cable Mount / Free Hanging Crimp Socket (Female) 47054 KK Bulk
Molex Headers & Wire Housings KK CE TRM 22-30G FEM Reel of 7000
Datasheet
Product Comments
49,000In Stock
112,000Expected 3/6/2026
Min.: 7,000
Mult.: 7,000
Reel: 7,000

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Tin 4809 KK 30 AWG to 22 AWG - 40 C + 80 C Reel
Molex Headers & Wire Housings KK 254 Cat Ear Crimp Terminal
Datasheet
Product Comments
171,225In Stock
159,914Expected 19/5/2026
Min.: 1
Mult.: 1

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Tin 4809 KK Wire-to-Board, Signal 30 AWG to 22 AWG - 40 C + 80 C Bulk
Molex Headers & Wire Housings KK TERM 18-24G Reel of 7000
Datasheet
Product Comments
63,000In Stock
63,000Expected 23/3/2026
Min.: 7,000
Mult.: 7,000
Reel: 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 18-24G Cut Strip of 100
Datasheet
Product Comments
42,000In Stock
Min.: 100
Mult.: 100

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Tin 2478 KK Wire-to-Board, Power 24 AWG to 18 AWG - 40 C + 80 C Cut Tape
Molex Headers & Wire Housings TERMINAL 24-18 BULK
Datasheet
90,413In Stock
189,176On Order
Min.: 1
Mult.: 1

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Tin 2478 KK 24 AWG to 18 AWG - 40 C + 80 C Bulk
Molex Headers & Wire Housings TERMINAL 22-26 BULK
Datasheet
24,173In Stock
7,000Expected 5/3/2026
Min.: 1
Mult.: 1

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Tin 2578 KK 26 AWG to 22 AWG - 40 C + 80 C Bulk
Molex Headers & Wire Housings KK 156 Term Crimp 22-26AWG
Datasheet
5,597In Stock
Min.: 1
Mult.: 1

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Tin 2578 KK 26 AWG to 22 AWG - 40 C + 80 C Bulk
Molex Headers & Wire Housings KK TERM 22-30G Reel of 10000
Datasheet
Product Comments
610,000In Stock
110,000Expected 5/3/2026
Min.: 10,000
Mult.: 10,000
Reel: 10,000

Contacts Crimp Socket (Female) Tin 2759 KK Wire-to-Board, Power 30 AWG Reel
Molex Headers & Wire Housings KK TERM 22-30G Reel of 1000
Datasheet
Product Comments
64,000In Stock
Min.: 1,000
Mult.: 1,000
Reel: 1,000

Contacts Crimp Socket (Female) Tin 2759 KK Wire-to-Board, Power 30 AWG to 22 AWG Reel
Molex Headers & Wire Housings KK TERM 22-30G Reel of 28000
Datasheet
Product Comments
105,000In Stock
Min.: 7,000
Mult.: 7,000
Reel: 7,000

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Tin 4809 KK 30 AWG to 22 AWG - 40 C + 80 C Reel
Molex Headers & Wire Housings KK TERM 22-30 AWG REEL of 10000
Datasheet
Product Comments
30,000In Stock
Min.: 10,000
Mult.: 10,000
Reel: 10,000

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Tin 2759 KK Signal 30 AWG to 22 AWG - 40 C + 80 C Reel
Molex Headers & Wire Housings CRIMP TERMINAL 22-30 AWG
Datasheet
32,877In Stock
Min.: 1
Mult.: 1

Contacts Crimp Socket (Female) Tin 2759 KK 30 AWG Bulk
Molex Headers & Wire Housings KK TERM 18-24G Reel of 7000
Datasheet
Product Comments
140,000In Stock
Min.: 7,000
Mult.: 7,000
Reel: 7,000

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Tin 2478 KK Wire-to-Board, Power 24 AWG to 18 AWG - 40 C + 105 C Reel
Molex Headers & Wire Housings KK TERM 22-30G Reel of 10000
Datasheet
Product Comments
90,000In Stock
80,000Expected 27/7/2026
Min.: 10,000
Mult.: 10,000
Reel: 10,000

Contacts Crimp Socket (Female) Tin 6459 KK Wire-to-Board, Signal 30 AWG Reel
Molex Headers & Wire Housings KK TERM 18-20G TRIF Reel of 7000
Datasheet
Product Comments
161,000In Stock
Min.: 7,000
Mult.: 7,000
Reel: 7,000

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Tin 6838 KK 20 AWG to 18 AWG - 40 C + 105 C Reel
Molex Headers & Wire Housings TERMINAL 22-26 BULK
Datasheet
Product Comments
14,303In Stock
Min.: 1
Mult.: 1

Contacts Crimp Socket (Female) Tin 7258 KK 26 AWG Bulk
Molex Headers & Wire Housings REELED TERMINALS 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) Gold 4809 KK 30 AWG to 22 AWG - 40 C + 85 C Reel
Molex Headers & Wire Housings KK 396 CRP TERM 18-24A REEL OF 7000
Datasheet
Product Comments
7,000In Stock
Min.: 7,000
Mult.: 7,000
Reel: 7,000

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Gold 2478 KK Power 24 AWG to 18 AWG - 40 C + 85 C Reel