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 (USD) 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 RA SMT B/A HDR 4P
Datasheet
69,764In 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 4P VERT HDR 15u Au
Datasheet
46,840In 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 KK 100 Hdr Assy Bkwy Bkwy 06 Ckt 30 SGold
Datasheet
23,906In 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
35,000In 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 KK2.5MM FL WAF.ASS. GOLD 504502AG
Datasheet
38,593In Stock
Min.: 1
Mult.: 1

Headers Locking 2 Position 2.5 mm (0.098 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Gold 7.5 mm (0.295 in) 3.4 mm (0.134 in) 5045 Mini-Latch/KK Wire-to-Board, Signal - 40 C + 105 C Bulk
Molex Headers & Wire Housings KK 100 HDR FRLK RTAN 17 CKT GOLD
Datasheet
836In Stock
Min.: 1
Mult.: 1

Headers Locking 17 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Gold 6.71 mm (0.264 in) 3.58 mm (0.141 in) 7478 KK Wire-to-Board, Signal - 40 C + 80 C Bulk
Molex Headers & Wire Housings 10 CKT HEADER
Datasheet
1,593In Stock
Min.: 1
Mult.: 1

Headers Receptacle 10 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Bottom Entry Socket (Female) Tin 3.35 mm (0.132 in) 4455 KK Board-to-Board, Signal - 40 C + 80 C Tray
Molex Headers & Wire Housings 2.54MM BOARD CONN RA 11 CKT Tin
Datasheet
1,784In Stock
Min.: 1
Mult.: 1

Headers Socket Assembly 11 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Socket (Female) Tin 3.35 mm (0.132 in) 4455 KK Board-to-Board, Signal - 40 C + 80 C Tray
Molex Headers & Wire Housings KK 156 Header Assy F FrLk Bkwy 24 ckt Ti
Datasheet
1,658In 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 HEADER R/A 3P
Datasheet
16,480In 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 11.43 mm (0.45 in) 3.96 mm (0.156 in) 42492 KK Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings 3.96 MM KK VERT HDR
Datasheet
6,561In 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 SOCKET 22-26AWG BULK
Datasheet
20,159In 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 6 POS RECEPT .156 R/A PCB TIN
Datasheet
6,971In Stock
Min.: 1
Mult.: 1

Headers Receptacle 6 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Right Angle Socket (Female) Tin 41815 KK - 40 C + 105 C Tray
Molex Headers & Wire Housings 2.54MM 10P RA HDR W/ FRCTN LOCK
Datasheet
9,877In Stock
Min.: 1
Mult.: 1

Headers Locking 10 Position 2.54 mm (0.1 in) 1 Row Through Hole Solder Pin Right Angle Pin (Male) Tin 6.71 mm (0.264 in) 3.8 mm (0.15 in) 7395 KK Wire-to-Board, Signal - 40 C + 105 C Bulk
Molex Headers & Wire Housings 2.54MM BREAKAWAY RA 20 CKT Tin
Datasheet
2,007In 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 KK 156 Hdr Assy Flat Flat Bkwy 03 ckt Tin
Datasheet
7,617In Stock
Min.: 1
Mult.: 1

Headers Unshrouded 3 Position 3.96 mm (0.156 in) 1 Row Through Hole Solder Pin Straight Pin (Male) Tin 19.43 mm (0.765 in) 3.56 mm (0.14 in) 41661 KK Board-to-Board, Wire-to-Board, Signal - 40 C + 80 C Bulk
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
5,936In 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 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
2,201In 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 15P HEADER
Datasheet
547In 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 VERT PCB HDR 7P GOLD PLATING
Datasheet
13,832In 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 3.96 MM KK VERT HDR
Datasheet
3,714In 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 4.45 mm (0.175 in) 3190 KK Wire-to-Board, Power - 40 C + 80 C Bulk
Molex Headers & Wire Housings VERT B/A HDR 24P TIN SQUARE PIN
Datasheet
5,415In 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 KK 2.54mm CRP TERM 22-30A REEL OF 7000
Datasheet
14,000In Stock
Min.: 7,000
Mult.: 7,000
: 7,000

Contacts Cable Mount / Free Hanging Crimp Socket (Female) Gold 8088 KK 30 AWG to 22 AWG - 40 C + 105 C Reel