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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) Filter the results in the table by unit price based on your quantity.	Qty.	Product	Type	Number of Positions	Pitch	Number of Rows	Row Spacing	Mounting Style	Termination Style	Mounting Angle	Contact Gender	Contact Plating	Termination Post Length	Series	Tradename	Application	Wire Gauge	Minimum Operating Temperature	Maximum Operating Temperature	Packaging
Headers & Wire Housings 2mm Pitch WtoB Conn 3pos Straight Header DF51K-3P-2DSA(805) Hirose Connector 1: £0.63 4,467In Stock 2,000Expected 30/10/2026	Mfr. Part No. DF51K-3P-2DSA(805) Mouser Part No 798-DF51K-3P-2DSA805	Hirose Connector	Headers & Wire Housings 2mm Pitch WtoB Conn 3pos Straight Header Learn More about Hirose Connector hirose df51k connectors	Datasheet	4,467In Stock 2,000Expected 30/10/2026	£0.63 £0.55 £0.503 £0.453 View £0.414 £0.342 £0.321 £0.296 £0.284	Min.: 1 Mult.: 1	Headers	Shrouded	3 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 20 pos Straight Hder DF51K-20DP-2DSA(800) Hirose Connector 1: £0.803 2,099In Stock	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 about Hirose Connector hirose df51k connectors	Datasheet	2,099In Stock	£0.803 £0.685 £0.582 £0.519 View £0.495 £0.484 £0.442	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 18 pos Straight Hder DF51K-18DP-2DSA(800) Hirose Connector 1: £0.751 1,684In 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 about Hirose Connector hirose df51k connectors	Datasheet	1,684In Stock	£0.751 £0.638 £0.542 £0.499 View £0.48 £0.459 £0.431 £0.411	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 22 pos RA Header DF51K-22DP-2DS(800) Hirose Connector 1: £1.29 838In Stock	Mfr. Part No. DF51K-22DP-2DS(800) Mouser Part No 798-DF51K-22DP2DS800	Hirose Connector	Headers & Wire Housings 2mm Pitch WtoB Conn 22 pos RA Header Learn More about Hirose Connector hirose df51k connectors	Datasheet	838In Stock	£1.29 £1.13 £1.08 £1.00 View £0.899 £0.834 £0.746 £0.723 £0.676	Min.: 1 Mult.: 1	Headers	Shrouded	22 Position	2 mm (0.079 in)	2 Row	2 mm (0.079 in)	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 3 pos RA Header DF51KB-3P-2DS(805) Hirose Connector 1: £0.826 610In Stock	Mfr. Part No. DF51KB-3P-2DS(805) Mouser Part No 798-DF51KB-3P-2DS805	Hirose Connector	Headers & Wire Housings 2mm Pitch WtoB Conn 3 pos RA Header Learn More about Hirose Connector hirose df51k connectors	Datasheet	610In Stock	£0.826 £0.701 £0.692 £0.54 View £0.521 £0.496 £0.471 £0.45	Min.: 1 Mult.: 1	Headers	Shrouded	3 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-6DP-2DSA(800) Hirose Connector 1: £0.443 3,647In Stock 14,500On Order	Mfr. Part No. DF51K-6DP-2DSA(800) Mouser Part No 798-DF51K-6DP2DSA800	Hirose Connector	Headers & Wire Housings 2mm Pitch WtoB Conn 6pos Straight Header Learn More about Hirose Connector hirose df51k connectors	Datasheet	3,647In Stock 14,500On Order On Order Ship Dates Mfr. No: DF51K-6DP-2DSA(800) Stock: 3,647 Can Dispatch Immediately On Order: 6,000 Expected 30/10/2026 600 Expected 05/11/2026 7,900 Expected 11/01/2027 Factory Lead Time: 13 Weeks	£0.443 £0.381 £0.348 £0.313 View £0.25 £0.238 £0.229 £0.21 £0.203	Min.: 1 Mult.: 1	Headers	Shrouded	6 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 Header, 30pos., 2mm pitch, right angle, 2A, 100V DF51K-30DP-2H(800) Hirose Connector 1: £2.75 700In Stock	Mfr. Part No. DF51K-30DP-2H(800) Mouser Part No 798-DF51K-30DP-2H800	Hirose Connector	Headers & Wire Housings Header, 30pos., 2mm pitch, right angle, 2A, 100V Learn More about Hirose Connector hirose df51k connectors	Datasheet	700In Stock	Cut Tape £2.75 £2.34 £1.99 Reel £1.84 £1.83 £1.64	Min.: 1 Mult.: 1 : 300	Headers		30 Position	2 mm (0.079 in)	2 Row		PCB Mount	Solder	Right Angle		Tin		DF51K	SignalBee			- 55 C	+ 105 C	Reel, Cut Tape
Headers & Wire Housings Header, 30pos., 2mm pitch, straight, 2A, 250V DF51K-30DP-2V(800) Hirose Connector 1: £2.71 1,005In Stock	Mfr. Part No. DF51K-30DP-2V(800) Mouser Part No 798-DF51K-30DP-2V800	Hirose Connector	Headers & Wire Housings Header, 30pos., 2mm pitch, straight, 2A, 250V Learn More about Hirose Connector hirose df51k connectors	Datasheet	1,005In Stock	Cut Tape £2.71 £2.30 £1.96 Reel £1.79 £1.78 View £1.65 £1.62	Min.: 1 Mult.: 1 : 350	Headers		30 Position	2 mm (0.079 in)	2 Row		PCB Mount	Solder	Straight		Tin		DF51K	SignalBee			- 55 C	+ 105 C	Reel, Cut Tape
Headers & Wire Housings Header, 30pos., 2mm pitch, straight, 2A, 250V DF51K-30DP-2V(805) Hirose Connector 1: £3.74 883In Stock	Mfr. Part No. DF51K-30DP-2V(805) Mouser Part No 798-DF51K-30DP-2V805	Hirose Connector	Headers & Wire Housings Header, 30pos., 2mm pitch, straight, 2A, 250V Learn More about Hirose Connector hirose df51k connectors	Datasheet	883In Stock	Cut Tape £3.74 £3.18 £2.71 Reel £2.48 £2.47 £2.30	Min.: 1 Mult.: 1 : 350	Headers		30 Position	2 mm (0.079 in)	2 Row		PCB Mount	Solder	Straight		Tin		DF51K	SignalBee			- 55 C	+ 105 C	Reel, Cut Tape
Headers & Wire Housings 2mm Pitch WtoB Conn Contact DF51K-2428SCFA(800) Hirose Connector 1: £0.142 171,137In Stock 210,000Expected 25/01/2027	Mfr. Part No. DF51K-2428SCFA(800) Mouser Part No 798-DF51K2428SCFA800	Hirose Connector	Headers & Wire Housings 2mm Pitch WtoB Conn Contact Learn More about Hirose Connector hirose df51k connectors	Datasheet	171,137In Stock 210,000Expected 25/01/2027	Cut Tape £0.142 £0.12 £0.108 £0.103 View Reel £0.073 £0.093 £0.087 £0.079 £0.078 £0.073	Min.: 1 Mult.: 1 : 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 8pos Straight Header DF51K-8DP-2DSA(800) Hirose Connector 1: £0.45 3,285On Order	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 about Hirose Connector hirose df51k connectors	Datasheet	3,285On Order On Order Ship Dates Mfr. No: DF51K-8DP-2DSA(800) Stock: 0 On Order: 1,885 Expected 30/10/2026 1,400 Expected 01/12/2026 Factory Lead Time: 22 Weeks	£0.45 £0.381 £0.319 £0.288 View £0.27 £0.259 £0.238 £0.233	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 Header, 2pos., 2mm pitch, straight, 3A, 250V DF51K-2P-2V(805) Hirose Connector 1: £1.00 1,004In Stock	Mfr. Part No. DF51K-2P-2V(805) Mouser Part No 798-DF51K-2P-2V805	Hirose Connector	Headers & Wire Housings Header, 2pos., 2mm pitch, straight, 3A, 250V Learn More about Hirose Connector hirose df51k connectors	Datasheet	1,004In Stock	Cut Tape £1.00 £0.856 £0.727 Reel £0.666 £0.665 View £0.607 £0.566 £0.564	Min.: 1 Mult.: 1 : 350	Headers		2 Position	2 mm (0.079 in)	1 Row		PCB Mount	Solder	Straight		Tin		DF51K	SignalBee			- 55 C	+ 105 C	Reel, Cut Tape
Headers & Wire Housings Header, 4pos., 2mm pitch, straight, 3A, 250V DF51K-4DP-2V(800) Hirose Connector 1: £1.10 615In Stock	Mfr. Part No. DF51K-4DP-2V(800) Mouser Part No 798-DF51K-4DP-2V800	Hirose Connector	Headers & Wire Housings Header, 4pos., 2mm pitch, straight, 3A, 250V Learn More about Hirose Connector hirose df51k connectors	Datasheet	615In Stock	Cut Tape £1.10 £0.943 £0.796 Reel £0.725 £0.631 View £0.616 £0.612	Min.: 1 Mult.: 1 : 350	Headers		4 Position	2 mm (0.079 in)	2 Row		PCB Mount	Solder	Straight		Tin		DF51K	SignalBee			- 55 C	+ 105 C	Reel, Cut Tape
Headers & Wire Housings Header, 4pos., 2mm pitch, Right angle, 2A, 250V DF51K-4P-2H(800) Hirose Connector 1: £1.05 638In Stock	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 about Hirose Connector hirose df51k connectors	Datasheet	638In Stock	Cut Tape £1.05 £0.89 £0.759 Reel £0.67 £0.62 View £0.583 £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 Header, 6pos., 2mm pitch, straight, 2A, 250V DF51K-6P-2V(800) Hirose Connector 1: £1.20 913In Stock	Mfr. Part No. DF51K-6P-2V(800) Mouser Part No 798-DF51K-6P-2V800	Hirose Connector	Headers & Wire Housings Header, 6pos., 2mm pitch, straight, 2A, 250V Learn More about Hirose Connector hirose df51k connectors	Datasheet	913In Stock	Cut Tape £1.20 £1.03 £0.871 Reel £0.796 £0.751 View £0.694 £0.677	Min.: 1 Mult.: 1 : 350	Headers		6 Position	2 mm (0.079 in)	1 Row		PCB Mount	Solder	Straight		Tin		DF51K	SignalBee			- 55 C	+ 105 C	Reel, Cut Tape
Headers & Wire Housings 2mm Pitch WtoB Conn Contact DF51K-22SC(800) Hirose Connector 1: £0.12 74,651In Stock	Mfr. Part No. DF51K-22SC(800) Mouser Part No 798-DF51K-22SC800	Hirose Connector	Headers & Wire Housings 2mm Pitch WtoB Conn Contact Learn More about Hirose Connector hirose df51k connectors	Datasheet	74,651In Stock	£0.12 £0.102 £0.092 £0.086 View £0.078 £0.072 £0.067 £0.065 £0.062	Min.: 1 Mult.: 1	Contacts							Crimp		Socket (Female)			DF51K	SignalBee	Wire-to-Board	22 AWG	- 55 C	+ 105 C	Bulk
Headers & Wire Housings 2mm Pitch WtoB Conn Contact DF51K-22SCF(800) Hirose Connector 1: £0.075 77,330In Stock	Mfr. Part No. DF51K-22SCF(800) Mouser Part No 798-DF51K-22SCF800	Hirose Connector	Headers & Wire Housings 2mm Pitch WtoB Conn Contact Learn More about Hirose Connector hirose df51k connectors	Datasheet	77,330In Stock	Cut Tape £0.075 £0.065 £0.058 £0.055 View Reel £0.039 £0.049 £0.046 £0.044 £0.042 £0.039	Min.: 1 Mult.: 1 : 10,000	Contacts							Crimp		Socket (Female)			DF51K	SignalBee	Wire-to-Board	22 AWG	- 55 C	+ 105 C	Reel, Cut Tape
Headers & Wire Housings 2mm Pitch WtoB Conn Contact DF51K-22SCFA(800) Hirose Connector 1: £0.165 22,903In Stock	Mfr. Part No. DF51K-22SCFA(800) Mouser Part No 798-DF51K-22SCFA800	Hirose Connector	Headers & Wire Housings 2mm Pitch WtoB Conn Contact Learn More about Hirose Connector hirose df51k connectors	Datasheet	22,903In Stock	Cut Tape £0.165 £0.14 £0.125 £0.119 View Reel £0.085 £0.106 £0.10 £0.094 £0.093 £0.085	Min.: 1 Mult.: 1 : 10,000	Contacts							Crimp		Socket (Female)			DF51K	SignalBee	Wire-to-Board	22 AWG	- 55 C	+ 105 C	Reel, Cut Tape
Headers & Wire Housings 2mm Pitch WtoB Conn 4 pos Socket DF51K-4DS-2C(800) Hirose Connector 1: £0.21 12,194In Stock 7,100Expected 17/11/2026	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 about Hirose Connector hirose df51k connectors	Datasheet	12,194In Stock 7,100Expected 17/11/2026	£0.21 £0.175 £0.157 £0.148 View £0.133 £0.126 £0.115 £0.113 £0.108	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 6 pos Socket DF51K-6DS-2C(800) Hirose Connector 1: £0.21 21,153In Stock	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 about Hirose Connector hirose df51k connectors	Datasheet	21,153In Stock	£0.21 £0.175 £0.157 £0.148 View £0.133 £0.126 £0.119 £0.118 £0.113	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, Positive lock, Wire-to-Board Connector (UL, C-UL Listed) Socket double row 10 pos DF51K-10DS-2C(800) Hirose Connector 1: £0.225 15,938In Stock 19,500Expected 07/12/2026	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 about Hirose Connector hirose df51k connectors	Datasheet	15,938In Stock 19,500Expected 07/12/2026	£0.225 £0.193 £0.173 £0.162 View £0.147 £0.132 £0.126 £0.12	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)	Tin		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) Right angle Header double row 8 pos gold plated DF51K-8DP-2DS(805) Hirose Connector 1: £1.20 1,785In Stock	Mfr. Part No. DF51K-8DP-2DS(805) Mouser Part No 798-DF51K8DP2DS805	Hirose Connector	Headers & Wire Housings 2mm Pitch, Positive lock, Wire-to-Board Connector (UL, C-UL Listed) Right angle Header double row 8 pos gold plated Learn More about Hirose Connector hirose df51k connectors	Datasheet	1,785In Stock	£1.20 £1.06 £1.01 £0.943 View £0.856 £0.78 £0.705 £0.653 £0.633	Min.: 1 Mult.: 1	Headers	Shrouded	8 Position	2 mm (0.079 in)	2 Row	2 mm (0.079 in)	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, Positive lock, Wire-to-Board Connector (UL, C-UL Listed) Socket double row 8 pos DF51K-8DS-2C(800) Hirose Connector 1: £0.255 14,916In Stock	Mfr. Part No. DF51K-8DS-2C(800) Mouser Part No 798-DF51K8DS2C800	Hirose Connector	Headers & Wire Housings 2mm Pitch, Positive lock, Wire-to-Board Connector (UL, C-UL Listed) Socket double row 8 pos Learn More about Hirose Connector hirose df51k connectors	Datasheet	14,916In Stock	£0.255 £0.211 £0.189 £0.177 View £0.157 £0.13 £0.121 £0.119 £0.113	Min.: 1 Mult.: 1	Headers	Socket	8 Position	2 mm (0.079 in)	2 Row	2 mm (0.079 in)	Cable Mount / Free Hanging	Crimp		Socket (Female)	Tin		DF51K	SignalBee	Wire-to-Board		- 55 C	+ 105 C	Bulk
Headers & Wire Housings 2mm Pitch WtoB Conn 2 pos RA Header DF51KB-2P-2DS(805) Hirose Connector 1: £0.661 7,874In Stock	Mfr. Part No. DF51KB-2P-2DS(805) Mouser Part No 798-DF51KB-2P-2DS805	Hirose Connector	Headers & Wire Housings 2mm Pitch WtoB Conn 2 pos RA Header Learn More about Hirose Connector hirose df51k connectors	Datasheet	7,874In Stock	£0.661 £0.56 £0.546 £0.43 View £0.429 £0.405 £0.368	Min.: 1 Mult.: 1	Headers	Shrouded	2 Position	2 mm (0.079 in)	1 Row		Mounting Peg	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, 16pos., 2mm pitch, right angle, 2A, 100V DF51K-16DP-2H(805) Hirose Connector 1: £2.57 530In Stock	Mfr. Part No. DF51K-16DP-2H(805) Mouser Part No 798-DF51K-16DP-2H805	Hirose Connector	Headers & Wire Housings Header, 16pos., 2mm pitch, right angle, 2A, 100V Learn More about Hirose Connector hirose df51k connectors	Datasheet	530In Stock	Cut Tape £2.57 £2.18 £1.86 Reel £1.72 £1.58 £1.53	Min.: 1 Mult.: 1 : 300	Headers		16 Position	2 mm (0.079 in)	2 Row		PCB Mount	Solder	Right Angle		Tin		DF51K	SignalBee			- 55 C	+ 105 C	Reel, Cut Tape

DF51K 2mm Pitch Wire-to-Board Connectors

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DF51K 2mm Pitch Wire-to-Board Connectors

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