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: £0.255
50In Stock
6,400On Order

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

50In Stock

6,400On Order

£0.255

£0.211

£0.189

£0.148

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: £0.533
2,172In Stock
6,000On 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

2,172In Stock

6,000On Order

£0.533

£0.456

£0.387

£0.346

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 4 pos Socket

DF51K-4DS-2C(800)
Hirose Connector
1: £0.21
630In Stock
15,700On Order

Mfr. Part No.
DF51K-4DS-2C(800)

Mouser Part No
798-DF51K-4DS-2C800

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn 4 pos Socket

Learn More

Datasheet

630In Stock

15,700On Order

£0.21

£0.175

£0.157

£0.148

View

Min.: 1
Mult.: 1

Headers

Socket

4 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 4 pos RA Header

DF51K-4P-2DS(805)
Hirose Connector
1: £1.06
7In Stock
540Expected 21/08/2026

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

Mouser Part No
798-DF51K-4P-2DS805

Hirose Connector

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

Learn More

Datasheet

7In Stock

540Expected 21/08/2026

£1.06

£0.89

£0.856

£0.803

View

Min.: 1
Mult.: 1

Headers

Shrouded

4 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 Header, 4pos., 2mm pitch, Right angle, 2A, 250V

DF51K-4P-2H(800)
Hirose Connector
1: £0.952
148In Stock
530Expected 29/12/2026

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

Mouser Part No
798-DF51K-4P-2H800

Hirose Connector

Headers & Wire Housings Header, 4pos., 2mm pitch, Right angle, 2A, 250V

Learn More

Datasheet

148In Stock

530Expected 29/12/2026

Cut Tape

£0.952

£0.811

£0.689

Reel

£0.612

£0.569

Min.: 1
Mult.: 1

: 530

Headers

4 Position

2 mm (0.079 in)

1 Row

PCB Mount

Solder

Right Angle

Tin

DF51K

SignalBee

- 55 C

+ 105 C

Reel, Cut Tape

Headers & Wire Housings 2mm Pitch WtoB Conn 4 pos Socket

DF51K-4S-2C(800)
Hirose Connector
1: £0.21
3,181In Stock
7,700On Order

Mfr. Part No.
DF51K-4S-2C(800)

Mouser Part No
798-DF51K-4S-2C800

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn 4 pos Socket

Learn More

Datasheet

3,181In Stock

7,700On Order

£0.21

£0.175

£0.157

£0.148

View

Min.: 1
Mult.: 1

Headers

Socket

4 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 5 pos RA Header

DF51K-5P-2DS(800)
Hirose Connector
1: £0.841
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

£0.841

£0.717

£0.689

£0.636

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: £1.12
277In Stock

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

277In Stock

£1.12

£0.952

£0.908

£0.818

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 5pos Straight Header

DF51K-5P-2DSA(800)
Hirose Connector
1: £0.45
733In Stock
1,300Expected 25/08/2026

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

Mouser Part No
798-DF51K-5P-2DSA800

Hirose Connector

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

Learn More

Datasheet

733In Stock

1,300Expected 25/08/2026

£0.45

£0.381

£0.323

£0.288

View

Min.: 1
Mult.: 1

Headers

Shrouded

5 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 5pos Straight Header

DF51K-5P-2DSA(805)
Hirose Connector
1: £0.751
1,546In Stock
1,900Expected 25/08/2026

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

Mouser Part No
798-DF51K-5P-2DSA805

Hirose Connector

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

Learn More

Datasheet

1,546In Stock

1,900Expected 25/08/2026

£0.751

£0.638

£0.542

£0.484

View

Min.: 1
Mult.: 1

Headers

Shrouded

5 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 6 pos Socket

DF51K-6DS-2C(800)
Hirose Connector
1: £0.271
2,121In Stock
22,000On Order

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

2,121In Stock

22,000On Order

£0.271

£0.232

£0.205

£0.177

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(800)
Hirose Connector
1: £1.01
520In Stock
600Expected 28/08/2026

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

Mouser Part No
798-DF51K-6P-2DS800

Hirose Connector

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

Learn More

Datasheet

520In Stock

600Expected 28/08/2026

£1.01

£0.856

£0.826

£0.773

View

Min.: 1
Mult.: 1

Headers

Shrouded

6 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 6 pos RA Header

DF51K-6P-2DS(805)
Hirose Connector
1: £1.22
300In 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

300In Stock

£1.22

£1.05

£0.841

£0.834

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: £0.661
374In Stock
800Expected 08/12/2026

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

374In Stock

800Expected 08/12/2026

£0.661

£0.571

£0.523

£0.471

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 6pos Straight Header

DF51K-6P-2DSA(805)
Hirose Connector
1: £0.826
371In Stock
600Expected 29/12/2026

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

Mouser Part No
798-DF51K-6P-2DSA805

Hirose Connector

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

Learn More

Datasheet

371In Stock

600Expected 29/12/2026

£0.826

£0.701

£0.595

£0.532

View

Min.: 1
Mult.: 1

Headers

Shrouded

6 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, Positive lock, Wire-to-Board Connector (UL, C-UL Listed) Socket double row 10 pos

DF51K-10DS-2C(800)
Hirose Connector
1: £0.285
5,755In Stock
23,900On Order

Mfr. Part No.
DF51K-10DS-2C(800)

Mouser Part No
798-DF51K10DS2C800

Hirose Connector

Headers & Wire Housings 2mm Pitch, Positive lock, Wire-to-Board Connector (UL, C-UL Listed) Socket double row 10 pos

Learn More

Datasheet

5,755In Stock

23,900On Order

£0.285

£0.239

£0.21

£0.185

View

Min.: 1
Mult.: 1

Headers

Socket

10 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 12 pos Straight Hder

DF51K-12DP-2DSA(800)
Hirose Connector
1: £0.615
6In Stock
4,700On Order

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

6In Stock

4,700On Order

£0.615

£0.525

£0.445

£0.397

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 16 pos Straight Hder

DF51K-16DP-2DSA(800)
Hirose Connector
1: £0.676
1,241In 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

1,241In Stock

£0.676

£0.575

£0.488

£0.436

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 18 pos Straight Hder

DF51K-18DP-2DSA(805)
Hirose Connector
1: £1.48
54In Stock

Mfr. Part No.
DF51K-18DP-2DSA(805)

Mouser Part No
798-DF51K18DP2DSA805

Hirose Connector

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

Learn More

Datasheet

54In Stock

£1.48

£1.26

£1.22

£1.06

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)

Gold

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: £0.882
115In Stock
2,100On Order

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

115In Stock

2,100On Order

£0.882

£0.743

£0.713

£0.629

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 22 pos Straight Hder

DF51K-22DP-2DSA(805)
Hirose Connector
1: £1.76
474In 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

474In Stock

£1.76

£1.50

£1.49

£1.35

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, Positive lock, Wire-to-Board Connector (UL, C-UL Listed) Contact gold plated

DF51K-2428SCA(800)
Hirose Connector
1: £0.24
11,383In Stock
28,500On Order

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

Mouser Part No
798-DF51K2428SCA800

Hirose Connector

Headers & Wire Housings 2mm Pitch, Positive lock, Wire-to-Board Connector (UL, C-UL Listed) Contact gold plated

Learn More

Datasheet

11,383In Stock

28,500On Order

£0.24

£0.206

£0.182

£0.157

View

Min.: 1
Mult.: 1

Contacts

Crimp

Socket (Female)

Gold

DF51K

SignalBee

Wire-to-Board

Bulk

Headers & Wire Housings 2mm Pitch WtoB Conn 26 pos Straight Hder

DF51K-26DP-2DSA(800)
Hirose Connector
1: £0.969
102In Stock
500Expected 22/12/2026

Mfr. Part No.
DF51K-26DP-2DSA(800)

Mouser Part No
798-DF51K26DP2DSA800

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn 26 pos Straight Hder

Learn More

Datasheet

102In Stock

500Expected 22/12/2026

£0.969

£0.826

£0.811

£0.70

View

Min.: 1
Mult.: 1

Headers

Shrouded

26 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 26 pos Straight Hder

DF51K-26DP-2DSA(805)
Hirose Connector
1: £2.02
333In Stock

Mfr. Part No.
DF51K-26DP-2DSA(805)

Mouser Part No
798-DF51K26DP2DSA805

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn 26 pos Straight Hder

Learn More

Datasheet

333In Stock

£2.02

£1.72

£1.65

£1.48

View

Min.: 1
Mult.: 1

Headers

Shrouded

26 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 28 pos Straight Hder

DF51K-28DP-2DSA(800)
Hirose Connector
1: £0.943
583In Stock

Mfr. Part No.
DF51K-28DP-2DSA(800)

Mouser Part No
798-DF51K28DP2DSA800

Hirose Connector

Headers & Wire Housings 2mm Pitch WtoB Conn 28 pos Straight Hder

Learn More

Datasheet

583In Stock

£0.943

£0.796

£0.675

£0.641

View

Min.: 1
Mult.: 1

Headers

Shrouded

28 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

DF51K 2mm Pitch Wire-to-Board Connectors

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