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Molex KK® Interconnection System

Now Available - Reflow Process Compatible (RPC) headers are now available in both signal and power applications and can handle solder temperatures up to 260ºC. Signal application KK 254 connectors delivers up to 5.0A and 250V per circuit in a 2.54mm centerline pitch. Power application KK 396 connectors deliver 13.0A and 600V per circuit in a 3.96mm centerline pitch.

Molex KK® Interconnection System
offers many polarization features to ensure correct mating in an application. The KK® Interconnection System has offset header entry holes, which provide 180º polarization, allowing both power and signal to carry through the same housing, and can also be loaded with optional polarization keys and pegs, to help ensure that the headers and housings only mate one way. Customizable KK headers allow for more polarization options and design configurations, such as headers with voided pins, customized pin lengths, kinked PC tails, and varying tin or gold plating options, providing application design flexibility. The Molex KK® Interconnection System of "building block" connectors can create thousands of different configurations, allowing each user to build a system precisely suited for any application on centers from 2.50 to 5.08mm with a maximum current of 13.0A per circuit while handling up to 600V.
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Compare up to 20 parts.
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Molex 171857-1002
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171857-1002

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Molex Headers & Wire Housings KK Hdr RA 2 Ckt 2.54mm Pitch 15um Au Data Sheet 5,711
In Stock
1: $0.66
25: $0.622
50: $0.581
100: $0.523
200: View



Min.: 1
Mult.: 1
Molex 171813-1002
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171813-1002

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Molex Headers & Wire Housings KK Hdr Vrt 2 Ckt 3.96mm Pitch 15um Au Data Sheet 4,131
In Stock
1: $0.75
25: $0.71
50: $0.662
100: $0.597
200: View



Min.: 1
Mult.: 1
Molex 171857-1003
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171857-1003

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Molex Headers & Wire Housings KK Hdr RA 3 Ckt 2.54mm Pitch 15um Au Data Sheet 3,574
In Stock
1: $0.93
25: $0.878
50: $0.82
100: $0.739
200: View



Min.: 1
Mult.: 1
Molex 171856-1007
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171856-1007

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Molex Headers & Wire Housings KK Hdr Vrt 7 Ckt 2.54mm Pitch 15um Au Data Sheet 3,000
In Stock
1: $1.05
25: $0.988
50: $0.922
100: $0.83
200: View



Min.: 1
Mult.: 1
Molex 171814-1002
Enlarge
171814-1002

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Molex Headers & Wire Housings KK Hdr RA 2 Ckt 3.96mm Pitch 15um Au Data Sheet 2,644
In Stock
1: $1.09
25: $1.03
50: $0.959
100: $0.863
200: View



Min.: 1
Mult.: 1
Molex 171857-1004
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171857-1004

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Molex Headers & Wire Housings KK Hdr RA 4 Ckt 2.54mm Pitch 15um Au Data Sheet 2,648
In Stock
1: $1.10
25: $1.04
50: $0.971
100: $0.875
200: View



Min.: 1
Mult.: 1
Molex 171857-1005
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171857-1005

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Molex Headers & Wire Housings KK Hdr RA 5 Ckt 2.54mm Pitch 15um Au Data Sheet 1,944
In Stock
1: $1.34
25: $1.26
50: $1.21
100: $1.11
200: View



Min.: 1
Mult.: 1
Molex 171857-1006
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171857-1006

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Molex Headers & Wire Housings KK Hdr RA 6 Ckt 2.54mm Pitch 15um Au Data Sheet 1,934
In Stock
1: $1.47
25: $1.39
50: $1.33
100: $1.22
200: View



Min.: 1
Mult.: 1
Molex 171814-1003
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171814-1003

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Molex Headers & Wire Housings KK Hdr RA 3 Ckt 3.96mm Pitch 15um Au Data Sheet 1,753
In Stock
1: $1.49
25: $1.40
50: $1.34
100: $1.23
200: View



Min.: 1
Mult.: 1
Molex 171857-1012
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171857-1012

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Molex Headers & Wire Housings KK Hdr RA 12 Ckt 2.54mm Pitch 15um Au Data Sheet 790
In Stock
1: $3.33
25: $3.06
50: $2.92
100: $2.78
200: View



Min.: 1
Mult.: 1
Molex 171814-1011
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171814-1011

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Molex Headers & Wire Housings KK Hdr RA 11 Ckt 3.96mm Pitch 15um Au Data Sheet 375
In Stock
1: $7.74
25: $6.77
50: $6.45
100: $6.13
200: View



Min.: 1
Mult.: 1
Molex 171814-1012
Enlarge
171814-1012

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Molex Headers & Wire Housings KK Hdr RA 12 Ckt 3.96mm Pitch 15um Au Data Sheet 300
In Stock
1: $8.51
25: $7.74
50: $7.36
100: $7.16
200: View



Min.: 1
Mult.: 1
Molex 171856-1002
Enlarge
171856-1002

New Product
New Product


Molex Headers & Wire Housings KK Hdr Vrt 2 Ckt 2.54mm Pitch 15um Au Data Sheet 5,616
In Stock
1: $0.35
25: $0.307
50: $0.272
100: $0.245
200: View



Min.: 1
Mult.: 1
Molex 171813-0002
Enlarge
171813-0002

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Molex Headers & Wire Housings KK Hdr Vrt 2 Ckt 3.96mm Pitch Sn Data Sheet 4,823
In Stock
1: $0.40
25: $0.347
50: $0.308
100: $0.278
200: View



Min.: 1
Mult.: 1
Molex 171856-0004
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171856-0004

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Molex Headers & Wire Housings KK Hdr Vrt 4 Ckt 2.54mm Pitch Sn Data Sheet 7,956
In Stock
1: $0.41
25: $0.358
50: $0.29
100: $0.278
200: View



Min.: 1
Mult.: 1
Molex 171856-1003
Enlarge
171856-1003

New Product
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Molex Headers & Wire Housings KK Hdr Vrt 3 Ckt 2.54mm Pitch 15um Au Data Sheet 3,707
In Stock
1: $0.58
25: $0.509
50: $0.452
100: $0.408
200: View



Min.: 1
Mult.: 1
Molex 171856-1004
Enlarge
171856-1004

New Product
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Molex Headers & Wire Housings KK Hdr Vrt 4 Ckt 2.54mm Pitch 15um Au Data Sheet 3,992
In Stock
1: $0.62
25: $0.541
50: $0.481
100: $0.433
200: View



Min.: 1
Mult.: 1
Molex 171813-0005
Enlarge
171813-0005

New Product
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Molex Headers & Wire Housings KK Hdr Vrt 5 Ckt 3.96mm Pitch Sn Data Sheet 2,350
In Stock
1: $0.71
25: $0.617
50: $0.548
100: $0.493
200: View



Min.: 1
Mult.: 1
Molex 171856-1005
Enlarge
171856-1005

New Product
New Product


Molex Headers & Wire Housings KK Hdr Vrt 5 Ckt 2.54mm Pitch 15um Au Data Sheet 1,832
In Stock
1: $0.75
25: $0.708
50: $0.661
100: $0.595
200: View



Min.: 1
Mult.: 1
Molex 171856-1006
Enlarge
171856-1006

New Product
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Molex Headers & Wire Housings KK Hdr Vrt 6 Ckt 2.54mm Pitch 15um Au Data Sheet 1,715
In Stock
1: $0.86
25: $0.81
50: $0.756
100: $0.681
200: View



Min.: 1
Mult.: 1
Molex 171813-1003
Enlarge
171813-1003

New Product
New Product


Molex Headers & Wire Housings KK Hdr Vrt 3 Ckt 3.96mm Pitch 15um Au Data Sheet 2,667
In Stock
1: $0.95
25: $0.897
50: $0.837
100: $0.754
200: View



Min.: 1
Mult.: 1
Molex 171813-1004
Enlarge
171813-1004

New Product
New Product


Molex Headers & Wire Housings KK Hdr Vrt 4 Ckt 3.96mm Pitch 15um Au Data Sheet 1,775
In Stock
1: $1.31
25: $1.24
50: $1.18
100: $1.11
200: View



Min.: 1
Mult.: 1
Molex 171814-0008
Enlarge
171814-0008

New Product
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Molex Headers & Wire Housings KK Hdr RA 8 Ckt 3.96mm Pitch Sn Data Sheet 1,196
In Stock
1: $1.35
25: $1.27
50: $1.22
100: $1.12
200: View



Min.: 1
Mult.: 1
Molex 171856-1009
Enlarge
171856-1009

New Product
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Molex Headers & Wire Housings KK Hdr Vrt 9 Ckt 2.54mm Pitch 15um Au Data Sheet 973
In Stock
1: $1.36
25: $1.28
50: $1.23
100: $1.13
200: View



Min.: 1
Mult.: 1
Molex 171813-1005
Enlarge
171813-1005

New Product
New Product


Molex Headers & Wire Housings KK Hdr Vrt 5 Ckt 3.96mm Pitch 15um Au Data Sheet 1,190
In Stock
1: $1.39
25: $1.31
50: $1.25
100: $1.15
200: View



Min.: 1
Mult.: 1
Compare up to 20 parts.
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