Headers & Wire Housings – Mouser Singapore

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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: $0.292
1,362In Stock
2,900Expected 24/6/2026

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 24/6/2026

$0.292

$0.253

$0.227

$0.214

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: $0.709
48In 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

48In Stock

2,400On Order

$0.709

$0.599

$0.509

$0.455

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: $0.667
883In Stock
1,200Expected 24/6/2026

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

883In Stock

1,200Expected 24/6/2026

$0.667

$0.569

$0.482

$0.431

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: $0.917
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

$0.917

$0.78

$0.662

$0.591

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: $1.22
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

$1.22

$1.04

$0.837

$0.835

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: $1.67
21In Stock
460Expected 1/7/2026

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 1/7/2026

$1.67

$1.42

$1.13

$1.05

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: $0.292
2,501In Stock
5,400Expected 27/5/2026

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 27/5/2026

$0.292

$0.253

$0.227

$0.214

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: $1.83
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

$1.83

$1.56

$1.52

$1.36

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: $0.806
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

$0.806

$0.691

$0.587

$0.523

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: $0.334
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

$0.334

$0.286

$0.256

$0.242

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: $0.723
1,344In Stock
4,100Expected 4/3/2026

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

1,344In Stock

4,100Expected 4/3/2026

$0.723

$0.627

$0.573

$0.516

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: $1.15
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

$1.15

$0.986

$0.837

$0.806

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: $0.737
759In Stock
1,100Expected 8/7/2026

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

759In Stock

1,100Expected 8/7/2026

$0.737

$0.63

$0.535

$0.477

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: $0.848
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

$0.848

$0.72

$0.612

$0.546

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, 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: $1.79
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

$1.79

$1.53

$1.30

$1.16

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: $1.03
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

$1.03

$0.869

$0.738

$0.657

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: $1.99
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

$1.99

$1.70

$1.43

$1.28

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: $1.10
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

$1.10

$0.927

$0.787

$0.689

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: $1.20
686In Stock
700Expected 1/7/2026

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 1/7/2026

$1.20

$1.01

$0.862

$0.769

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: $2.38
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

$2.38

$2.03

$1.71

$1.53

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: $2.63
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

$2.63

$2.24

$1.89

$1.86

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: $0.181
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

$0.181

$0.152

$0.136

$0.129

View

Reel

$0.092

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: $1.36
127In Stock
600Expected 8/7/2026

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

127In Stock

600Expected 8/7/2026

$1.36

$1.16

$0.984

$0.967

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: $2.79
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

$2.79

$2.38

$2.00

$1.99

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

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

DF51K-28DP-2DSA(800)
Hirose Connector
1: $1.53
621In 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

621In Stock

$1.53

$1.30

$1.18

$1.06

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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