Headers & Wire Housings

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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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Part #

Headers & Wire Housings RA SMT B/A HDR 4P

22-28-8042
Molex
1: S/2.80
69,764In Stock

Mfr. Part #
22-28-8042

Mouser Part #
538-22-28-8042

Molex

Headers & Wire Housings RA SMT B/A HDR 4P

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Datasheet

69,764In Stock

S/2.80

S/2.60

S/2.46

S/2.25

View

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

Board-to-Board, Wire-to-Board, Signal

- 40 C

+ 80 C

Bulk

Headers & Wire Housings KK 100 Hdr Assy Bkwy Bkwy 06 Ckt 30 SGold

22-28-4067
Molex
1: S/5.29
23,906In Stock

Mfr. Part #
22-28-4067

Mouser Part #
538-22-28-4067

Molex

Headers & Wire Housings KK 100 Hdr Assy Bkwy Bkwy 06 Ckt 30 SGold

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Datasheet

23,906In Stock

S/5.29

S/4.90

S/4.55

S/4.36

View

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

Board-to-Board, Wire-to-Board, Signal

- 40 C

+ 80 C

Bulk

Headers & Wire Housings REELED TERMINALS Reel of 7000

08-56-0120
Molex
7,000: S/2.28
35,000In Stock

Mfr. Part #
08-56-0120

Mouser Part #
538-08-56-0120

Molex

Headers & Wire Housings REELED TERMINALS Reel of 7000

Learn More

Datasheet

35,000In Stock

Reel

S/2.28

Min.: 7,000
Mult.: 7,000

: 7,000

Contacts

Crimp

Socket (Female)

Gold

4809

Wire-to-Board, Signal

30 AWG

Reel

Headers & Wire Housings 4P VERT HDR 15u Au

22-28-4044
Molex
1: S/2.37
46,840In Stock

Mfr. Part #
22-28-4044

Mouser Part #
538-22-28-4044

Molex

Headers & Wire Housings 4P VERT HDR 15u Au

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Datasheet

46,840In Stock

S/2.37

S/2.09

S/2.01

S/1.82

View

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

Board-to-Board, Wire-to-Board, Signal

- 40 C

+ 80 C

Bulk

Headers & Wire Housings KK2.5MM FL WAF.ASS. GOLD 504502AG

22-11-1021
Molex
1: S/2.18
38,593In Stock

Mfr. Part #
22-11-1021

Mouser Part #
538-22-11-1021

Molex

Headers & Wire Housings KK2.5MM FL WAF.ASS. GOLD 504502AG

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Datasheet

38,593In Stock

S/2.18

S/1.94

S/1.79

S/1.59

View

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

Headers & Wire Housings KK 100 HDR FRLK RTAN 17 CKT GOLD

22-12-2174
Molex
1: S/24.87
836In Stock

Mfr. Part #
22-12-2174

Mouser Part #
538-22-12-2174

Molex

Headers & Wire Housings KK 100 HDR FRLK RTAN 17 CKT GOLD

Learn More

Datasheet

836In Stock

S/24.87

S/17.13

S/16.82

S/16.66

View

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

Wire-to-Board, Signal

- 40 C

+ 80 C

Bulk

Headers & Wire Housings 10 CKT HEADER

22-14-2104
Molex
1: S/5.64
1,593In Stock

Mfr. Part #
22-14-2104

Mouser Part #
538-22-14-2104

Molex

Headers & Wire Housings 10 CKT HEADER

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Datasheet

1,593In Stock

S/5.64

S/4.83

S/4.55

S/4.09

View

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

Board-to-Board, Signal

- 40 C

+ 80 C

Tray

Headers & Wire Housings 2.54MM BOARD CONN RA 11 CKT Tin

22-15-2116
Molex
1: S/5.92
1,784In Stock

Mfr. Part #
22-15-2116

Mouser Part #
538-22-15-2116

Molex

Headers & Wire Housings 2.54MM BOARD CONN RA 11 CKT Tin

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Datasheet

1,784In Stock

S/5.92

S/5.06

S/4.24

S/3.83

View

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

Board-to-Board, Signal

- 40 C

+ 80 C

Tray

Headers & Wire Housings KK 156 Header Assy F FrLk Bkwy 24 ckt Ti

26-48-8247
Molex
1: S/10.86
1,658In Stock

Mfr. Part #
26-48-8247

Mouser Part #
538-26-48-8247

Molex

Headers & Wire Housings KK 156 Header Assy F FrLk Bkwy 24 ckt Ti

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Datasheet

1,658In Stock

S/10.86

S/9.23

S/7.86

S/7.82

View

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

Board-to-Board, Wire-to-Board, Signal

Headers & Wire Housings HEADER R/A 3P

26-64-5030
Molex
1: S/1.91
16,480In Stock

Mfr. Part #
26-64-5030

Mouser Part #
538-26-64-5030

Molex

Headers & Wire Housings HEADER R/A 3P

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Datasheet

16,480In Stock

S/1.91

S/1.75

S/1.74

S/1.55

View

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

Wire-to-Board, Power

- 40 C

+ 80 C

Bulk

Headers & Wire Housings 3.96 MM KK VERT HDR

41791-0832
Molex
1: S/2.61
6,561In Stock

Mfr. Part #
41791-0832

Mouser Part #
538-41791-0832

Molex

Headers & Wire Housings 3.96 MM KK VERT HDR

Learn More

Datasheet

6,561In Stock

S/2.61

S/2.31

S/2.10

S/1.97

View

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

Wire-to-Board, Power

- 40 C

+ 80 C

Bulk

Headers & Wire Housings KK 156 PCB Assy Top 10 Ckts Tin

09-48-2103
Molex
1: S/8.29
1,591In Stock

Mfr. Part #
09-48-2103

Mouser Part #
538-09-48-2103

Molex

Headers & Wire Housings KK 156 PCB Assy Top 10 Ckts Tin

Learn More

Datasheet

1,591In Stock

S/8.29

S/7.08

S/6.07

S/5.33

View

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

- 40 C

+ 80 C

Headers & Wire Housings 10 POS RECEPT .156 TOP PCB GOLD

09-48-3106
Molex
1: S/9.61
2,201In Stock

Mfr. Part #
09-48-3106

Mouser Part #
538-09-48-3106

Molex

Headers & Wire Housings 10 POS RECEPT .156 TOP PCB GOLD

Learn More

Datasheet

2,201In Stock

S/9.61

S/8.49

S/8.45

S/7.43

View

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

Tray

Headers & Wire Housings 15P HEADER

09-48-3155
Molex
1: S/21.18
547In Stock

Mfr. Part #
09-48-3155

Mouser Part #
538-09-48-3155

Molex

Headers & Wire Housings 15P HEADER

Learn More

Datasheet

547In Stock

S/21.18

S/19.27

S/11.56

S/11.48

View

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

- 40 C

+ 80 C

Tray

Headers & Wire Housings VERT PCB HDR 7P GOLD PLATING

22-10-2071
Molex
1: S/6.70
13,832In Stock

Mfr. Part #
22-10-2071

Mouser Part #
538-22-10-2071

Molex

Headers & Wire Housings VERT PCB HDR 7P GOLD PLATING

Learn More

Datasheet

13,832In Stock

S/6.70

S/5.72

S/4.87

S/4.20

View

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

Board-to-Board, Wire-to-Board, Signal

- 40 C

+ 80 C

Bulk

Headers & Wire Housings 3.96 MM KK VERT HDR

26-19-2041
Molex
1: S/3.11
3,714In Stock

Mfr. Part #
26-19-2041

Mouser Part #
538-26-19-2041

Molex

Headers & Wire Housings 3.96 MM KK VERT HDR

Learn More

Datasheet

3,714In Stock

S/3.11

S/2.64

S/2.63

S/2.24

View

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

Wire-to-Board, Power

- 40 C

+ 80 C

Bulk

Headers & Wire Housings VERT B/A HDR 24P TIN SQUARE PIN

26-48-1241
Molex
1: S/6.66
5,340In Stock

Mfr. Part #
26-48-1241

Mouser Part #
538-26-48-1241

Molex

Headers & Wire Housings VERT B/A HDR 24P TIN SQUARE PIN

Learn More

Datasheet

5,340In Stock

S/6.66

S/6.34

S/6.31

S/5.72

View

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

Wire-to-Board, Power

- 40 C

+ 80 C

Bulk

Headers & Wire Housings KK 2.54mm CRP TERM 22-30A REEL OF 7000

08-65-0105
Molex
7,000: S/0.67
14,000In Stock

Mfr. Part #
08-65-0105

Mouser Part #
538-08-65-0105

Molex

Headers & Wire Housings KK 2.54mm CRP TERM 22-30A REEL OF 7000

Datasheet

14,000In Stock

Reel

S/0.67

S/0.642

Min.: 7,000
Mult.: 7,000

: 7,000

Contacts

Cable Mount / Free Hanging

Crimp

Socket (Female)

Gold

8088

30 AWG to 22 AWG

- 40 C

+ 105 C

Reel

Headers & Wire Housings KK 100 Housing Crimp Pol Ramp 2 Ckt

10-11-2024
Molex
1: S/0.506
22,469In Stock

Mfr. Part #
10-11-2024

Mouser Part #
538-10-11-2024

Molex

Headers & Wire Housings KK 100 Housing Crimp Pol Ramp 2 Ckt

Learn More

Datasheet

22,469In Stock

S/0.506

S/0.428

S/0.389

S/0.378

View

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

Headers & Wire Housings 7 PIN HOUSING

10-11-2073
Molex
1: S/1.01
23,502In Stock

Mfr. Part #
10-11-2073

Mouser Part #
538-10-11-2073

Molex

Headers & Wire Housings 7 PIN HOUSING

Learn More

Datasheet

23,502In Stock

S/1.01

S/0.701

S/0.537

S/0.514

View

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

Headers & Wire Housings KK RPC 100 Hdr FrLk Vert02 Ckt 15Au T&R

171856-4002
Molex
1: S/7.40
2,075In Stock

Mfr. Part #
171856-4002

Mouser Part #
538-171856-4002

Molex

Headers & Wire Housings KK RPC 100 Hdr FrLk Vert02 Ckt 15Au T&R

Learn More

Datasheet

2,075In Stock

Cut Tape

S/7.40

S/6.46

S/6.19

S/5.76

Reel

S/4.09

View

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

Wire-to-Board

- 40 C

+ 105 C

Reel, Cut Tape

Headers & Wire Housings 2.54mm KK Hdr RA FricLK .5Au 8Ckt

22-12-4082
Molex
1: S/6.27
2,483In Stock

Mfr. Part #
22-12-4082

Mouser Part #
538-22-12-4082

Molex

Headers & Wire Housings 2.54mm KK Hdr RA FricLK .5Au 8Ckt

Learn More

Datasheet

2,483In Stock

S/6.27

S/4.40

S/3.61

S/3.60

View

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

Wire-to-Board, Signal

- 40 C

+ 80 C

Bulk

Headers & Wire Housings PCB BOTTOM ENTRY 8P

22-17-3082
Molex
1: S/6.97
3,787In Stock

Mfr. Part #
22-17-3082

Mouser Part #
538-22-17-3082

Molex

Headers & Wire Housings PCB BOTTOM ENTRY 8P

Learn More

Datasheet

3,787In Stock

S/6.97

S/6.03

S/5.84

S/5.25

View

Min.: 1
Mult.: 1

Headers

Socket Assembly

8 Position

2.54 mm (0.1 in)

1 Row

Through Hole

Solder Pin

Bottom Entry

Socket (Female)

Gold

4455

Tray

Headers & Wire Housings 10PIN FR LOCK HEADER

22-29-2101
Molex
1: S/8.52
8,621In Stock

Mfr. Part #
22-29-2101

Mouser Part #
538-22-29-2101

Molex

Headers & Wire Housings 10PIN FR LOCK HEADER

Learn More

Datasheet

8,621In Stock

S/8.52

S/7.28

S/6.93

S/6.19

View

Min.: 1
Mult.: 1

Headers

Locking

10 Position

2.54 mm (0.1 in)

1 Row

Through Hole

Solder Pin

Straight

Pin (Male)

Gold

3.56 mm (0.14 in)

6410

Wire-to-Board, Signal

- 40 C

+ 80 C

Bulk

Headers & Wire Housings STRT RND PIN HDR 8P .200 KK

10-08-1081
Molex
1: S/4.75
4,424In Stock

Mfr. Part #
10-08-1081

Mouser Part #
538-10-08-1081

Molex

Headers & Wire Housings STRT RND PIN HDR 8P .200 KK

Learn More

Datasheet

4,424In Stock

S/4.75

S/4.05

S/4.01

S/3.45

View

Min.: 1
Mult.: 1

Headers

Unshrouded

8 Position

5.08 mm (0.2 in)

1 Row

Through Hole

Solder Pin

Straight

Pin (Male)

Tin

3003

Bulk

KK Connectors

Customer Service Office

Company

Resources

Support

1 Position
2 Position
3 Position
4 Position
5 Position
6 Position
7 Position
8 Position
9 Position
10 Position
11 Position
12 Position
13 Position
14 Position
15 Position
16 Position
17 Position
18 Position
19 Position
20 Position

3.4 mm (0.134 in)
3.43 mm (0.135 in)
3.78 mm (0.149 in)
4.83 mm (0.19 in)
5.79 mm (0.228 in)
5.84 mm (0.23 in)
5.89 mm (0.232 in)
5.94 mm (0.234 in)
6.09 mm (0.24 in)
6.2 mm (0.244 in)
6.6 mm (0.26 in)
6.71 mm (0.264 in)
6.73 mm (0.265 in)
7.26 mm (0.286 in)
7.34 mm (0.289 in)
7.44 mm (0.293 in)
7.49 mm (0.295 in)
7.5 mm (0.295 in)
7.62 mm (0.3 in)
7.65 mm (0.301 in)

1.88 mm (0.074 in)
2.29 mm (0.09 in)
2.34 mm (0.092 in)
2.37 mm (0.093 in)
2.51 mm (0.099 in)
2.54 mm (0.1 in)
2.79 mm (0.11 in)
2.84 mm (0.112 in)
2.97 mm (0.117 in)
3 mm (0.118 in)
3.02 mm (0.119 in)
3.05 mm (0.12 in)
3.1 mm (0.122 in)
3.15 mm (0.124 in)
3.18 mm (0.125 in)
3.3 mm (0.13 in)
3.35 mm (0.132 in)
3.38 mm (0.133 in)
3.4 mm (0.134 in)
3.43 mm (0.135 in)

2139
2223
2228
2477
2478
2560
2578
2599
2601
2620
2648
2662
2695
2759
3001
3002
3003
3061
3069
3190