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 (IDR) 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 100 KK Bkwy Hdr Str y Hdr Str 30SAu 2Ckt
Datasheet
20.651In Stock
Min.: 1
Mult.: 1

Headers Breakaway 2 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 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 36 Ckt 15 SGold
Datasheet
1.630In Stock
Min.: 1
Mult.: 1

Headers Breakaway 36 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 KK 100 Hdr Assy RA B y RA Bkwy 02 Ckt Tin
Datasheet
29.099In 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 10.29 mm (0.405 in) 3.05 mm (0.12 in) 42376 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings KK 100 Hdr Assy
Datasheet
3.179In Stock
Min.: 1
Mult.: 1
Reel: 225

Headers Breakaway 22 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 9.17 mm (0.361 in) 3.05 mm (0.12 in) 42376 KK Reel, Cut Tape
Molex Headers & Wire Housings 2.54MM BREAKAWAY RA 3 CKT Tin
Datasheet
17.742In 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) Tin 42377 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings KK 100 Hdr Assy RA B Bkwy 02 Ckt 15 SGold
Datasheet
32.238In 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) Gold 42377 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings KK 156 Crimp Housing Crimp Housing 09 Ckt
Datasheet
10.632In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 9 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 KK 156 Crimp Housing Housing Ramp 03 Ckt
Datasheet
38.927In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 3 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
Molex Headers & Wire Housings TRIFURCON HOUSING
Datasheet
2.197In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 20 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 R/A B/A HDR 10P TIN SQUARE PIN
Datasheet
Product Comments
3.211In 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 14.55 mm (0.573 in) 4.67 mm (0.184 in) 41662 KK Board-to-Board, Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings 8P STRAIGHT HEADER
Datasheet
5.357In Stock
Min.: 1
Mult.: 1

Headers Breakaway 8 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 396 Breakaway Header RA 11 Ckts Gold (Au) Plating
Datasheet
1.192In Stock
Min.: 1
Mult.: 1

Headers Breakaway 11 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Gold 14.55 mm (0.573 in) 4.67 mm (0.184 in) 41662 KK Wire-to-Board, Power - 40 C + 80 C Bulk

Molex Headers & Wire Housings 6 CKT STRAIGHT HDR A DR ASLY MATTE FINISH
Datasheet
2.553In Stock
2.240Expected 10/04/2026
Min.: 1
Mult.: 1
Reel: 1.120

Headers Shrouded 6 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 9.27 mm (0.365 in) 2.79 mm (0.11 in) 8619 KK Wire-to-Board, Signal Reel, Cut Tape
Molex Headers & Wire Housings KK 100 PCB Assy Top Assy Top 10 Ckt Tin
Datasheet
3.117In Stock
Min.: 1
Mult.: 1

Headers Socket Assembly 10 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 TERM 24-18G FEM Cut Strip of 100
Datasheet
Product Comments
76.500In Stock
Min.: 100
Mult.: 100

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Tin 2478 KK Wire-to-Board, Wire-to-Wire, Power 24 AWG to 18 AWG - 40 C + 105 C Cut Tape
Molex Headers & Wire Housings KK 156 Hdr Assy FrLk FrLk 10 Ckt 15 SGol
Datasheet
1.784In Stock
Min.: 1
Mult.: 1

Headers Locking 10 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 5.08mm KK HSG 5Ckt White GW Capable
Datasheet
11.648In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 5 Position 5.08 mm (0.2 in) 1 Row Cable Mount / Free Hanging Crimp Socket (Female) 91813 KK Wire-to-Board, Power Bulk
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
Molex Headers & Wire Housings CONNECTOR
Datasheet
Product Comments
18.994In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 4 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 CRIMP HSG POL RAMP KK 96 13CKT
Datasheet
9.415In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 13 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 KK Hdr RA 3 Ckt 3.96mm Pitch Sn
Datasheet
6.713In Stock
Min.: 1
Mult.: 1

Headers Locking 3 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 11.33 mm (0.446 in) 2.54 mm (0.1 in) 171814 KK Wire-to-Board - 40 C + 105 C Bulk
Molex Headers & Wire Housings 100 KK Term O/LRamp O/LRamp WO/PoR 15Ckt
Datasheet
6.541In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 15 Position 2.54 mm (0.1 in) 1 Row Cable Mount / Free Hanging Crimp Socket (Female) 2695 KK Wire-to-Board, Signal Bulk
Molex Headers & Wire Housings 5P R/A HEADER
Datasheet
6.636In Stock
Min.: 1
Mult.: 1

Headers Locking 5 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