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 (GBP) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Product
Type
Number of Positions
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Number of Rows
Mounting Style
Termination Style
Mounting Angle
Contact Gender
Contact Plating
Mating Post Length
Termination Post Length
Series
Tradename
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Wire Gauge
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Maximum Operating Temperature
Packaging
Molex Headers & Wire Housings 4P VERT HDR 15u Au
Datasheet
47,157In Stock
Min.: 1
Mult.: 1

Headers Breakaway 4 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 3.05 mm (0.12 in) 42375 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings RA SMT B/A HDR 4P
Datasheet
70,878In Stock
Min.: 1
Mult.: 1

Headers Breakaway 4 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Gold 6.2 mm (0.244 in) 3.05 mm (0.12 in) 42377 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings KK 100 Hdr Assy Bkwy Bkwy 06 Ckt 30 SGold
Datasheet
24,311In Stock
Min.: 1
Mult.: 1

Headers Breakaway 6 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 REELED TERMINALS Reel of 7000
Datasheet
Product Comments
42,000In Stock
Min.: 7,000
Mult.: 7,000
: 7,000

Contacts Crimp Socket (Female) Gold 4809 KK Wire-to-Board, Signal 30 AWG Reel
Molex Headers & Wire Housings SOCKET 22-26AWG BULK
Datasheet
Product Comments
20,859In Stock
Min.: 1
Mult.: 1

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Gold 2578 KK 26 AWG to 22 AWG - 40 C + 85 C Bulk
Molex Headers & Wire Housings HDR VT 1X02P .1" 295/120 15AU
Datasheet
39,579In 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 3.05 mm (0.12 in) 42375 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings 2.54MM BREAKAWAY RA 20 CKT Tin
Datasheet
2,032In Stock
Min.: 1
Mult.: 1

Headers Breakaway 20 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 8.23 mm (0.324 in) 3.05 mm (0.12 in) 42377 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C
Molex Headers & Wire Housings 17CKT VERT HDR
Datasheet
2,290In Stock
Min.: 1
Mult.: 1

Headers Shrouded 17 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) 41791 KK Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings 3.96 MM KK VERT HDR
Datasheet
5,956In 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 2.5 KK HSG FEMALE 2P
Datasheet
32,747In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 2 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 KK 156 Header Assy F FrLk Bkwy 24 ckt Ti
Datasheet
1,662In 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 11.38 mm (0.448 in) 11.53 mm (0.454 in) 41671 KK Board-to-Board, Wire-to-Board, Signal
Molex Headers & Wire Housings 3.96 MM KK VERT HDR
Datasheet
6,598In Stock
Min.: 1
Mult.: 1

Headers Locking 2 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 156 PCB Assy Top 10 Ckts Tin
Datasheet
1,591In Stock
Min.: 1
Mult.: 1

Headers Receptacle 10 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Socket (Female) Tin 41815 KK - 40 C + 80 C
Molex Headers & Wire Housings 10 POS RECEPT .156 TOP PCB GOLD
Datasheet
2,319In Stock
Min.: 1
Mult.: 1

Headers Socket Assembly 10 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Socket (Female) Gold 3.05 mm (0.12 in) 41815 KK Tray
Molex Headers & Wire Housings VERT PCB HDR 7P GOLD PLATING
Datasheet
13,887In Stock
Min.: 1
Mult.: 1

Headers Pin Strip 7 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 7.49 mm (0.295 in) 3.43 mm (0.135 in) 4030 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings VERT B/A HDR 24P TIN SQUARE PIN
Datasheet
5,484In Stock
Min.: 1
Mult.: 1

Headers Breakaway 24 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 41661 KK Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings VERT FRICTION LK 18P tin
Datasheet
4,539In Stock
Min.: 1
Mult.: 1

Headers Shrouded 18 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) 41791 KK Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings KK TERM 18-24G Reel of 7000
Datasheet
Product Comments
49,000In 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 5.08MM 5P VERT HDR W/POLAR BACKWL
Datasheet
5,124In Stock
Min.: 1
Mult.: 1

Headers Shrouded 5 Position 5.08 mm (0.2 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 2599 KK Bulk
Molex Headers & Wire Housings KK 100 Housing Crimp Pol Ramp 2 Ckt
Datasheet
23,623In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 2 Position 2.54 mm (0.1 in) 1 Row Cable Mount / Free Hanging Crimp Straight Socket (Female) 7880 KK
Molex Headers & Wire Housings 7 PIN HOUSING
Datasheet
23,700In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 7 Position 2.54 mm (0.1 in) 1 Row Cable Mount / Free Hanging Crimp Straight Socket (Female) 7880 KK High Pressure Bulk
Molex Headers & Wire Housings KK RPC 100 Hdr FrLk Vert02 Ckt 15Au T&R
Datasheet
2,075In Stock
Min.: 1
Mult.: 1
: 1,050

Headers Locking 2 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 7.44 mm (0.293 in) 2.34 mm (0.092 in) 171856 KK Wire-to-Board - 40 C + 105 C Reel, Cut Tape
Molex Headers & Wire Housings 2.54mm KK Hdr RA FricLK .5Au 8Ckt
Datasheet
2,483In Stock
Min.: 1
Mult.: 1

Headers Locking 8 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Gold 6.71 mm (0.264 in) 3.8 mm (0.15 in) 7395 KK Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings KK 100 Housing Crimp Pol Ramp 4 Ckt
Datasheet
42,137In Stock
Min.: 1
Mult.: 1

Wire Housings Receptacle Housing 4 Position 2.54 mm (0.1 in) 1 Row Cable Mount / Free Hanging Crimp Straight Socket (Female) 7880 KK
Molex Headers & Wire Housings 2.54MM BOARD CONN RA 7 CKT Gold
Datasheet
5,606In Stock
Min.: 1
Mult.: 1

Headers Socket Assembly 7 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Socket (Female) Gold 3.35 mm (0.132 in) 4455 KK Board-to-Board, Signal - 40 C + 80 C Tray