Headers & Wire Housings – Mouser United Kingdom

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DF51K 2mm Pitch Wire-to-Board Connectors

Hirose Electric DF51K 2mm Pitch Wire-to-Board Connectors feature a center-lock design that prevents damage while allowing high-density mounting and easy operation. The locking mechanism delivers a clear tactile click to ensure complete mating, while visually and mechanically polarized features prevent reverse or incorrect mating. Hirose Electric DF51K connectors are available in straight or right-angle options, single or dual row, and with gold or tin plating. Typical applications include medical, office, and amusement equipment, as well as industrial machinery and robots.

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Part #

Headers & Wire Housings 2mm Pitch WtoB Conn 3 pos Socket

DF51K-3S-2C(800)
Hirose Connector
1: £0.158
1,362In Stock
2,900Expected 24/06/2026

Mfr. Part No.
DF51K-3S-2C(800)

Mouser Part No
798-DF51K-3S-2C800

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn 3 pos Socket

Learn More

Datasheet

1,362In Stock

2,900Expected 24/06/2026

£0.158

£0.137

£0.122

£0.115

View

Min.: 1
Mult.: 1

Headers

Socket

3 Position

2 mm (0.079 in)

1 Row

Cable Mount / Free Hanging

Crimp

Socket (Female)

DF51K

SignalBee

Wire-to-Board

- 55 C

+ 105 C

Bulk

Headers & Wire Housings 2mm Pitch WtoB Conn 4pos Straight Header

DF51K-4DP-2DSA(805)
Hirose Connector
1: £0.383
40In Stock
2,400On Order

Mfr. Part No.
DF51K-4DP-2DSA(805)

Mouser Part No
798-DF51K-4DP2DSA805

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn 4pos Straight Header

Learn More

Datasheet

40In Stock

2,400On Order

£0.383

£0.324

£0.275

£0.245

View

Min.: 1
Mult.: 1

Headers

Shrouded

4 Position

2 mm (0.079 in)

2 Row

2 mm (0.079 in)

Through Hole

Solder Pin

Straight

Pin (Male)

Gold

3 mm (0.118 in)

DF51K

SignalBee

Wire-to-Board

- 55 C

+ 105 C

Bulk

Headers & Wire Housings 2mm Pitch WtoB Conn 4pos Straight Header

DF51K-4P-2DSA(800)
Hirose Connector
1: £0.361
875In Stock
1,200Expected 24/06/2026

Mfr. Part No.
DF51K-4P-2DSA(800)

Mouser Part No
798-DF51K-4P-2DSA800

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn 4pos Straight Header

Learn More

Datasheet

875In Stock

1,200Expected 24/06/2026

£0.361

£0.307

£0.26

£0.233

View

Min.: 1
Mult.: 1

Headers

Shrouded

4 Position

2 mm (0.079 in)

1 Row

Through Hole

Solder Pin

Straight

Pin (Male)

Tin

3 mm (0.118 in)

DF51K

SignalBee

Wire-to-Board

- 55 C

+ 105 C

Bulk

Headers & Wire Housings 2mm Pitch WtoB Conn 4pos Straight Header

DF51K-4P-2DSA(805)
Hirose Connector
1: £0.496
49In Stock
2,400On Order

Mfr. Part No.
DF51K-4P-2DSA(805)

Mouser Part No
798-DF51K-4P-2DSA805

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn 4pos Straight Header

Learn More

Datasheet

49In Stock

2,400On Order

£0.496

£0.421

£0.357

£0.32

View

Min.: 1
Mult.: 1

Headers

Shrouded

4 Position

2 mm (0.079 in)

1 Row

Through Hole

Solder Pin

Straight

Pin (Male)

Gold

3 mm (0.118 in)

DF51K

SignalBee

Wire-to-Board

- 55 C

+ 105 C

Bulk

Headers & Wire Housings 2mm Pitch WtoB Conn 5 pos RA Header

DF51K-5P-2DS(800)
Hirose Connector
1: £0.661
690In Stock

Mfr. Part No.
DF51K-5P-2DS(800)

Mouser Part No
798-DF51K-5P-2DS800

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn 5 pos RA Header

Learn More

Datasheet

690In Stock

£0.661

£0.564

£0.452

£0.451

View

Min.: 1
Mult.: 1

Headers

Shrouded

5 Position

2 mm (0.079 in)

1 Row

Through Hole

Solder Pin

Right Angle

Pin (Male)

Tin

3 mm (0.118 in)

DF51K

SignalBee

Wire-to-Board

- 55 C

+ 105 C

Tray

Headers & Wire Housings 2mm Pitch WtoB Conn 5 pos RA Header

DF51K-5P-2DS(805)
Hirose Connector
1: £0.899
21In Stock
460Expected 01/07/2026

Mfr. Part No.
DF51K-5P-2DS(805)

Mouser Part No
798-DF51K-5P-2DS805

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn 5 pos RA Header

Learn More

Datasheet

21In Stock

460Expected 01/07/2026

£0.899

£0.766

£0.612

£0.611

View

Min.: 1
Mult.: 1

Headers

Shrouded

5 Position

2 mm (0.079 in)

1 Row

Through Hole

Solder Pin

Right Angle

Pin (Male)

Gold

3 mm (0.118 in)

DF51K

SignalBee

Wire-to-Board

- 55 C

+ 105 C

Tray

Headers & Wire Housings 2mm Pitch WtoB Conn 6 pos Socket

DF51K-6DS-2C(800)
Hirose Connector
1: £0.158
2,501In Stock
5,400Expected 27/05/2026

Mfr. Part No.
DF51K-6DS-2C(800)

Mouser Part No
798-DF51K-6DS-2C800

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn 6 pos Socket

Learn More

Datasheet

2,501In Stock

5,400Expected 27/05/2026

£0.158

£0.137

£0.122

£0.115

View

Min.: 1
Mult.: 1

Headers

Socket

6 Position

2 mm (0.079 in)

2 Row

2 mm (0.079 in)

Cable Mount / Free Hanging

Crimp

Socket (Female)

DF51K

SignalBee

Wire-to-Board

- 55 C

+ 105 C

Bulk

Headers & Wire Housings 2mm Pitch WtoB Conn 6 pos RA Header

DF51K-6P-2DS(805)
Hirose Connector
1: £0.995
455In Stock

Mfr. Part No.
DF51K-6P-2DS(805)

Mouser Part No
798-DF51K-6P-2DS805

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn 6 pos RA Header

Learn More

Datasheet

455In Stock

£0.995

£0.841

£0.818

£0.734

View

Min.: 1
Mult.: 1

Headers

Shrouded

6 Position

2 mm (0.079 in)

1 Row

Through Hole

Solder Pin

Right Angle

Pin (Male)

Gold

3 mm (0.118 in)

DF51K

SignalBee

Wire-to-Board

- 55 C

+ 105 C

Tray

Headers & Wire Housings 2mm Pitch WtoB Conn 6pos Straight Header

DF51K-6P-2DSA(800)
Hirose Connector
1: £0.436
1,127In Stock

Mfr. Part No.
DF51K-6P-2DSA(800)

Mouser Part No
798-DF51K-6P-2DSA800

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn 6pos Straight Header

Learn More

Datasheet

1,127In Stock

£0.436

£0.373

£0.317

£0.282

View

Min.: 1
Mult.: 1

Headers

Shrouded

6 Position

2 mm (0.079 in)

1 Row

Through Hole

Solder Pin

Straight

Pin (Male)

Tin

3 mm (0.118 in)

DF51K

SignalBee

Wire-to-Board

- 55 C

+ 105 C

Bulk

Headers & Wire Housings 2mm Pitch WtoB Conn 6 pos Socket

DF51K-6S-2C(800)
Hirose Connector
1: £0.18
2,095In Stock

Mfr. Part No.
DF51K-6S-2C(800)

Mouser Part No
798-DF51K-6S-2C800

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn 6 pos Socket

Learn More

Datasheet

2,095In Stock

£0.18

£0.155

£0.138

£0.131

View

Min.: 1
Mult.: 1

Headers

Socket

6 Position

2 mm (0.079 in)

1 Row

Cable Mount / Free Hanging

Crimp

Socket (Female)

DF51K

SignalBee

Wire-to-Board

- 55 C

+ 105 C

Bulk

Headers & Wire Housings 2mm Pitch WtoB Conn 8pos Straight Header

DF51K-8DP-2DSA(800)
Hirose Connector
1: £0.39
1,339In Stock
4,100Expected 04/03/2026

Mfr. Part No.
DF51K-8DP-2DSA(800)

Mouser Part No
798-DF51K-8DP2DSA800

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn 8pos Straight Header

Learn More

Datasheet

1,339In Stock

4,100Expected 04/03/2026

£0.39

£0.339

£0.309

£0.278

View

Min.: 1
Mult.: 1

Headers

Shrouded

8 Position

2 mm (0.079 in)

2 Row

2 mm (0.079 in)

Through Hole

Solder Pin

Straight

Pin (Male)

Tin

3 mm (0.118 in)

DF51K

SignalBee

Wire-to-Board

- 55 C

+ 105 C

Bulk

Headers & Wire Housings 2mm Pitch WtoB Conn 8pos Straight Header

DF51K-8DP-2DSA(805)
Hirose Connector
1: £0.623
19In Stock
2,500On Order

Mfr. Part No.
DF51K-8DP-2DSA(805)

Mouser Part No
798-DF51K-8DP2DSA805

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn 8pos Straight Header

Learn More

Datasheet

19In Stock

2,500On Order

£0.623

£0.533

£0.452

£0.436

View

Min.: 1
Mult.: 1

Headers

Shrouded

8 Position

2 mm (0.079 in)

2 Row

2 mm (0.079 in)

Through Hole

Solder Pin

Straight

Pin (Male)

Gold

3 mm (0.118 in)

DF51K

SignalBee

Wire-to-Board

- 55 C

+ 105 C

Bulk

Headers & Wire Housings 2mm Pitch WtoB Conn 10 pos Straight Hder

DF51K-10DP-2DSA(800)
Hirose Connector
1: £0.398
659In Stock
1,100Expected 08/07/2026

Mfr. Part No.
DF51K-10DP-2DSA(800)

Mouser Part No
798-DF51K10DP2DSA800

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn 10 pos Straight Hder

Learn More

Datasheet

659In Stock

1,100Expected 08/07/2026

£0.398

£0.34

£0.289

£0.258

View

Min.: 1
Mult.: 1

Headers

Shrouded

10 Position

2 mm (0.079 in)

2 Row

2 mm (0.079 in)

Through Hole

Solder Pin

Straight

Pin (Male)

Tin

3 mm (0.118 in)

DF51K

SignalBee

Wire-to-Board

- 55 C

+ 105 C

Bulk

Headers & Wire Housings 2mm Pitch WtoB Conn 12 pos Straight Hder

DF51K-12DP-2DSA(800)
Hirose Connector
1: £0.458
3,898In Stock

Mfr. Part No.
DF51K-12DP-2DSA(800)

Mouser Part No
798-DF51K12DP2DSA800

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn 12 pos Straight Hder

Learn More

Datasheet

3,898In Stock

£0.458

£0.388

£0.33

£0.295

View

Min.: 1
Mult.: 1

Headers

Shrouded

12 Position

2 mm (0.079 in)

2 Row

2 mm (0.079 in)

Through Hole

Solder Pin

Straight

Pin (Male)

Tin

3 mm (0.118 in)

DF51K

SignalBee

Wire-to-Board

- 55 C

+ 105 C

Bulk

Headers & Wire Housings 2mm Pitch WtoB Conn 14 pos Straight Hder

DF51K-14DP-2DSA(800)
Hirose Connector
1: £0.496
900Expected 17/06/2026

Mfr. Part No.
DF51K-14DP-2DSA(800)

Mouser Part No
798-DF51K14DP2DSA800

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn 14 pos Straight Hder

Learn More

Datasheet

900Expected 17/06/2026

£0.496

£0.421

£0.357

£0.32

View

Min.: 1
Mult.: 1

Headers

Shrouded

14 Position

2 mm (0.079 in)

2 Row

2 mm (0.079 in)

Through Hole

Solder Pin

Straight

Pin (Male)

Tin

3 mm (0.118 in)

DF51K

SignalBee

Wire-to-Board

- 55 C

+ 105 C

Bulk

Headers & Wire Housings 2mm Pitch, Positive lock, Wire-to-Board Connector (UL, C-UL Listed) Straight Header double row 14 pos gold plated

DF51K-14DP-2DSA(805)
Hirose Connector
1: £0.969
249In Stock

Mfr. Part No.
DF51K-14DP-2DSA(805)

Mouser Part No
798-DF51K14DP2DSA805

Hirose Connector

Headers & Wire Housings 2mm Pitch, Positive lock, Wire-to-Board Connector (UL, C-UL Listed) Straight Header double row 14 pos gold plated

Learn More

Datasheet

249In Stock

£0.969

£0.826

£0.70

£0.625

View

Min.: 1
Mult.: 1

Headers

Shrouded

14 Position

2 mm (0.079 in)

2 Row

2 mm (0.079 in)

Through Hole

Solder Pin

Straight

Pin (Male)

Gold

3 mm (0.118 in)

DF51K

SignalBee

Wire-to-Board

- 55 C

+ 105 C

Bulk

Headers & Wire Housings 2mm Pitch WtoB Conn 16 pos Straight Hder

DF51K-16DP-2DSA(800)
Hirose Connector
1: £0.555
1,629In Stock

Mfr. Part No.
DF51K-16DP-2DSA(800)

Mouser Part No
798-DF51K16DP2DSA800

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn 16 pos Straight Hder

Learn More

Datasheet

1,629In Stock

£0.555

£0.47

£0.399

£0.355

View

Min.: 1
Mult.: 1

Headers

Shrouded

16 Position

2 mm (0.079 in)

2 Row

2 mm (0.079 in)

Through Hole

Solder Pin

Straight

Pin (Male)

Tin

3 mm (0.118 in)

DF51K

SignalBee

Wire-to-Board

- 55 C

+ 105 C

Bulk

Headers & Wire Housings 2mm Pitch WtoB Conn 16 pos Straight Hder

DF51K-16DP-2DSA(805)
Hirose Connector
1: £1.07
305In Stock

Mfr. Part No.
DF51K-16DP-2DSA(805)

Mouser Part No
798-DF51K16DP2DSA805

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn 16 pos Straight Hder

Learn More

Datasheet

305In Stock

£1.07

£0.917

£0.773

£0.693

View

Min.: 1
Mult.: 1

Headers

Shrouded

16 Position

2 mm (0.079 in)

2 Row

2 mm (0.079 in)

Through Hole

Solder Pin

Straight

Pin (Male)

Gold

3 mm (0.118 in)

DF51K

SignalBee

Wire-to-Board

- 55 C

+ 105 C

Bulk

Headers & Wire Housings 2mm Pitch WtoB Conn 18 pos Straight Hder

DF51K-18DP-2DSA(800)
Hirose Connector
1: £0.593
1,290In Stock

Mfr. Part No.
DF51K-18DP-2DSA(800)

Mouser Part No
798-DF51K18DP2DSA800

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn 18 pos Straight Hder

Learn More

Datasheet

1,290In Stock

£0.593

£0.501

£0.425

£0.373

View

Min.: 1
Mult.: 1

Headers

Shrouded

18 Position

2 mm (0.079 in)

2 Row

2 mm (0.079 in)

Through Hole

Solder Pin

Straight

Pin (Male)

Tin

3 mm (0.118 in)

DF51K

SignalBee

Wire-to-Board

- 55 C

+ 105 C

Bulk

Headers & Wire Housings 2mm Pitch WtoB Conn 20 pos Straight Hder

DF51K-20DP-2DSA(800)
Hirose Connector
1: £0.646
686In Stock
700Expected 01/07/2026

Mfr. Part No.
DF51K-20DP-2DSA(800)

Mouser Part No
798-DF51K20DP2DSA800

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn 20 pos Straight Hder

Learn More

Datasheet

686In Stock

700Expected 01/07/2026

£0.646

£0.548

£0.465

£0.416

View

Min.: 1
Mult.: 1

Headers

Shrouded

20 Position

2 mm (0.079 in)

2 Row

2 mm (0.079 in)

Through Hole

Solder Pin

Straight

Pin (Male)

Tin

3 mm (0.118 in)

DF51K

SignalBee

Wire-to-Board

- 55 C

+ 105 C

Bulk

Headers & Wire Housings 2mm Pitch WtoB Conn 20 pos Straight Hder

DF51K-20DP-2DSA(805)
Hirose Connector
1: £1.28
261In Stock

Mfr. Part No.
DF51K-20DP-2DSA(805)

Mouser Part No
798-DF51K20DP2DSA805

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn 20 pos Straight Hder

Learn More

Datasheet

261In Stock

£1.28

£1.10

£0.925

£0.826

View

Min.: 1
Mult.: 1

Headers

Shrouded

20 Position

2 mm (0.079 in)

2 Row

2 mm (0.079 in)

Through Hole

Solder Pin

Straight

Pin (Male)

Gold

3 mm (0.118 in)

DF51K

SignalBee

Wire-to-Board

- 55 C

+ 105 C

Bulk

Headers & Wire Housings 2mm Pitch WtoB Conn 22 pos Straight Hder

DF51K-22DP-2DSA(805)
Hirose Connector
1: £1.42
510In Stock

Mfr. Part No.
DF51K-22DP-2DSA(805)

Mouser Part No
798-DF51K22DP2DSA805

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn 22 pos Straight Hder

Learn More

Datasheet

510In Stock

£1.42

£1.20

£1.02

£1.00

View

Min.: 1
Mult.: 1

Headers

Shrouded

22 Position

2 mm (0.079 in)

2 Row

2 mm (0.079 in)

Through Hole

Solder Pin

Straight

Pin (Male)

Gold

3 mm (0.118 in)

DF51K

SignalBee

Wire-to-Board

- 55 C

+ 105 C

Bulk

Headers & Wire Housings 2mm Pitch WtoB Conn Contact

DF51K-2428SCFA(800)
Hirose Connector
1: £0.098
18,538In Stock
130,000On Order

Mfr. Part No.
DF51K-2428SCFA(800)

Mouser Part No
798-DF51K2428SCFA800

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn Contact

Learn More

Datasheet

18,538In Stock

130,000On Order

Cut Tape

£0.098

£0.082

£0.073

£0.07

View

Reel

£0.05

Min.: 1
Mult.: 1

Reel: 10,000

Contacts

Crimp

Socket (Female)

DF51K

SignalBee

Wire-to-Board

- 55 C

+ 105 C

Reel, Cut Tape

Headers & Wire Housings 2mm Pitch WtoB Conn 24 pos Straight Hder

DF51K-24DP-2DSA(800)
Hirose Connector
1: £0.736
600Expected 08/07/2026

Mfr. Part No.
DF51K-24DP-2DSA(800)

Mouser Part No
798-DF51K24DP2DSA800

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn 24 pos Straight Hder

Learn More

Datasheet

600Expected 08/07/2026

£0.736

£0.626

£0.532

£0.523

View

Min.: 1
Mult.: 1

Headers

Shrouded

24 Position

2 mm (0.079 in)

2 Row

2 mm (0.079 in)

Through Hole

Solder Pin

Straight

Pin (Male)

Tin

3 mm (0.118 in)

DF51K

SignalBee

Wire-to-Board

- 55 C

+ 105 C

Bulk

Headers & Wire Housings 2mm Pitch WtoB Conn 24 pos Straight Hder

DF51K-24DP-2DSA(805)
Hirose Connector
1: £1.51
206In Stock

Mfr. Part No.
DF51K-24DP-2DSA(805)

Mouser Part No
798-DF51K24DP2DSA805

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn 24 pos Straight Hder

Learn More

Datasheet

206In Stock

£1.51

£1.28

£1.08

£1.07

View

Min.: 1
Mult.: 1

Headers

Shrouded

24 Position

2 mm (0.079 in)

2 Row

2 mm (0.079 in)

Through Hole

Solder Pin

Straight

Pin (Male)

Gold

3 mm (0.118 in)

DF51K

SignalBee

Wire-to-Board

- 55 C

+ 105 C

Bulk

DF51K 2mm Pitch Wire-to-Board Connectors

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