Board to Board & Mezzanine Connectors

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2.54mm B2B SIL Headers & Sockets

GCT 2.54mm Board-to-Board (B2B) SIL Headers and Sockets feature a 3A current rating, 20mΩ maximum contact resistance, and up to 5000MΩ insulation resistance. These sockets and headers offer various designs that can consist of up to 80 contacts, through-hole or surface-mount construction, and a 0.64mm square pin size. These GCT sockets are available with a right-angle, U-shaped, or straight orientation, while the headers are available in both right-angle and straight orientations.

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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	Number of Positions	Pitch	Number of Rows	Termination Style	Mounting Angle	Current Rating	Minimum Operating Temperature	Maximum Operating Temperature	Contact Plating	Contact Material	Housing Material	Series	Packaging
Board to Board & Mezzanine Connectors 4w, 2.54mm Pth Socket, SIL, TH, Horiz, GF, LCP Natural, Box BG302-04-A-L-G GCT 1: £0.375 240In Stock	Mfr. Part No. BG302-04-A-L-G Mouser Part No 640-BG302-04-A-L-G	GCT	Board to Board & Mezzanine Connectors 4w, 2.54mm Pth Socket, SIL, TH, Horiz, GF, LCP Natural, Box Learn More about GCT 2 54mm b2b sil headers sockets	Datasheet	240In Stock	£0.375 £0.32 £0.304 £0.278 View £0.231 £0.207 £0.196	Min.: 1 Mult.: 1	Sockets	4 Position	2.54 mm (0.1 in)	1 Row	Solder	Right Angle	3 A	- 40 C	+ 105 C	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	BG302	Bulk
Board to Board & Mezzanine Connectors 6w, 2.54mm Pth Socket, SIL, TH, Horiz, GF, LCP Natural, Box BG302-06-A-L-G GCT 1: £0.496 816In Stock	Mfr. Part No. BG302-06-A-L-G Mouser Part No 640-BG302-06-A-L-G	GCT	Board to Board & Mezzanine Connectors 6w, 2.54mm Pth Socket, SIL, TH, Horiz, GF, LCP Natural, Box Learn More about GCT 2 54mm b2b sil headers sockets	Datasheet	816In Stock	£0.496 £0.421 £0.358 £0.32 View £0.304 £0.301 £0.271 £0.258	Min.: 1 Mult.: 1	Sockets	6 Position	2.54 mm (0.1 in)	1 Row	Solder	Right Angle	3 A	- 40 C	+ 105 C	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	BG302	Bulk
Board to Board & Mezzanine Connectors 2w, 2.54mm Pth Header, SIL, TH, Horiz, GF, LCP Natural, Box BG303-02-A-0300-L-G GCT 1: £0.158 2,698In Stock	Mfr. Part No. BG303-02-A-0300-L-G Mouser Part No 640-BG30302A0300LG	GCT	Board to Board & Mezzanine Connectors 2w, 2.54mm Pth Header, SIL, TH, Horiz, GF, LCP Natural, Box Learn More about GCT 2 54mm b2b sil headers sockets	Datasheet	2,698In Stock	£0.158 £0.136 £0.115 £0.103 View £0.098 £0.093 £0.087 £0.083	Min.: 1 Mult.: 1	Headers	2 Position	2.54 mm (0.1 in)	1 Row	Solder	Right Angle	3 A	- 40 C	+ 105 C	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	BG303	Bulk
Board to Board & Mezzanine Connectors 3w, 2.54mm Pth Header, SIL, TH, Horiz, GF, LCP Natural, Box BG303-03-A-0300-L-G GCT 1: £0.18 3,252In Stock	Mfr. Part No. BG303-03-A-0300-L-G Mouser Part No 640-BG30303A0300LG	GCT	Board to Board & Mezzanine Connectors 3w, 2.54mm Pth Header, SIL, TH, Horiz, GF, LCP Natural, Box Learn More about GCT 2 54mm b2b sil headers sockets	Datasheet	3,252In Stock	£0.18 £0.154 £0.132 £0.117 View £0.115 £0.10 £0.094	Min.: 1 Mult.: 1	Headers	3 Position	2.54 mm (0.1 in)	1 Row	Solder	Right Angle	3 A	- 40 C	+ 105 C	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	BG303	Bulk
Board to Board & Mezzanine Connectors 4w, 2.54mm Pth Header, SIL, TH, Horiz, GF, LCP Natural, Box BG303-04-A-0300-L-G GCT 1: £0.24 284In Stock 3,000Expected 27/11/2026	Mfr. Part No. BG303-04-A-0300-L-G Mouser Part No 640-BG30304A0300LG	GCT	Board to Board & Mezzanine Connectors 4w, 2.54mm Pth Header, SIL, TH, Horiz, GF, LCP Natural, Box Learn More about GCT 2 54mm b2b sil headers sockets	Datasheet	284In Stock 3,000Expected 27/11/2026	£0.24 £0.202 £0.172 £0.153 View £0.142 £0.14 £0.13 £0.124	Min.: 1 Mult.: 1	Headers	4 Position	2.54 mm (0.1 in)	1 Row	Solder	Right Angle	3 A	- 40 C	+ 105 C	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	BG303	Bulk
Board to Board & Mezzanine Connectors 6w, 2.54mm Pth Header, SIL, TH, Horiz, GF, LCP Natural, Box BG303-06-A-0300-L-G GCT 1: £0.39 1,586In Stock	Mfr. Part No. BG303-06-A-0300-L-G Mouser Part No 640-BG30306A0300LG	GCT	Board to Board & Mezzanine Connectors 6w, 2.54mm Pth Header, SIL, TH, Horiz, GF, LCP Natural, Box Learn More about GCT 2 54mm b2b sil headers sockets	Datasheet	1,586In Stock	£0.39 £0.34 £0.298 £0.264 View £0.237 £0.194 £0.181 £0.176 £0.169	Min.: 1 Mult.: 1	Headers	6 Position	2.54 mm (0.1 in)	1 Row	Solder	Right Angle	3 A	- 40 C	+ 105 C	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	BG303	Bulk
Board to Board & Mezzanine Connectors 4w, 2.54mm Pth Hdr, U Shaped, Single Insul, LCP Natural, Box BG304-04-A-0500-L-G GCT 1: £0.278 3,300In Stock	Mfr. Part No. BG304-04-A-0500-L-G Mouser Part No 640-BG30404A0500LG	GCT	Board to Board & Mezzanine Connectors 4w, 2.54mm Pth Hdr, U Shaped, Single Insul, LCP Natural, Box Learn More about GCT 2 54mm b2b sil headers sockets	Datasheet	3,300In Stock	£0.278 £0.233 £0.198 £0.177 View £0.168 £0.163 £0.15 £0.142	Min.: 1 Mult.: 1	Headers	4 Position	2.54 mm (0.1 in)	2 Row	Solder	Vertical	3 A	- 40 C	+ 105 C	Gold	Brass	Liquid Crystal Polymer (LCP)	BG304	Bulk
Board to Board & Mezzanine Connectors 2w, 2.54mm Pth Socket, SIL, SMT, Vert, R2 GF, LCP Natural, Box BG306-02-A-2-0400-L-G GCT 1: £0.48 2,050In Stock 5,000Expected 29/10/2026	Mfr. Part No. BG306-02-A-2-0400-L-G Mouser Part No 640-BG30602A20400LG	GCT	Board to Board & Mezzanine Connectors 2w, 2.54mm Pth Socket, SIL, SMT, Vert, R2 GF, LCP Natural, Box Learn More about GCT 2 54mm b2b sil headers sockets	Datasheet	2,050In Stock 5,000Expected 29/10/2026	£0.48 £0.409 £0.347 £0.31 View £0.294 £0.263 £0.25	Min.: 1 Mult.: 1	Sockets	2 Position	2.54 mm (0.1 in)	1 Row	Solder	Vertical	3 A	- 40 C	+ 105 C	Gold	Brass	Liquid Crystal Polymer (LCP)	BG306	Bulk
Board to Board & Mezzanine Connectors 5w, 2.54mm Pitch Socket, SIL, SMT, Vert, R1, GF, LCP Nat, T+R+C BG306-05-A-1-0400-L-B GCT 1: £0.811 904In Stock	Mfr. Part No. BG306-05-A-1-0400-L-B Mouser Part No 640-BG30605A10400LB	GCT	Board to Board & Mezzanine Connectors 5w, 2.54mm Pitch Socket, SIL, SMT, Vert, R1, GF, LCP Nat, T+R+C Learn More about GCT 2 54mm b2b sil headers sockets	Datasheet	904In Stock	Cut Tape £0.811 £0.687 £0.584 £0.521 Reel £0.464 £0.46	Min.: 1 Mult.: 1 : 1,200	Sockets	5 Position	2.54 mm (0.1 in)	1 Row	Solder	Vertical	3 A	- 40 C	+ 105 C	Gold	Brass	Liquid Crystal Polymer (LCP)	BG306	Reel, Cut Tape
Board to Board & Mezzanine Connectors 4w, 2.54mm Pitch Socket, SIL, SMT, Vert, R1, GF, LCP Nat, T+R+C BG306-04-A-1-0400-L-B GCT 1: £0.713 7,177On Order	Mfr. Part No. BG306-04-A-1-0400-L-B Mouser Part No 640-BG30604A10400LB	GCT	Board to Board & Mezzanine Connectors 4w, 2.54mm Pitch Socket, SIL, SMT, Vert, R1, GF, LCP Nat, T+R+C Learn More about GCT 2 54mm b2b sil headers sockets	Datasheet	7,177On Order On Order Ship Dates Mfr. No: BG306-04-A-1-0400-L-B Stock: 0 On Order: 3,577 Expected 13/11/2026 3,600 Expected 01/01/2027 Factory Lead Time: 8 Weeks	Cut Tape £0.713 £0.605 £0.514 £0.459 Reel £0.411 View £0.399 £0.384	Min.: 1 Mult.: 1 : 1,200	Sockets	4 Position	2.54 mm (0.1 in)	1 Row	Solder	Straight	3 A	- 40 C	+ 105 C	Gold	Brass	Liquid Crystal Polymer (LCP)	BG306	Reel, Cut Tape
Board to Board & Mezzanine Connectors 6w, 2.54mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box BG030-06-A-0450-0300-N-G GCT 1: £0.158 3,490Expected 05/11/2026	Mfr. Part No. BG030-06-A-0450-0300-N-G Mouser Part No 640-BG036A045003NG	GCT	Board to Board & Mezzanine Connectors 6w, 2.54mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box Learn More about GCT 2 54mm b2b sil headers sockets	Datasheet	3,490Expected 05/11/2026	£0.158 £0.134 £0.114 £0.102 View £0.093 £0.09 £0.084 £0.08	Min.: 1 Mult.: 1	Headers	6 Position	2.54 mm (0.1 in)	1 Row	Solder	Straight	3 A	- 40 C	+ 105 C	Gold	Copper Alloy	Nylon	BG030	Bulk
Board to Board & Mezzanine Connectors 5w, 2.54mm Pth Header, SIL, TH, Horiz, GF, LCP Natural, Box BG303-05-A-0300-L-G GCT 1: £0.308 Non-Stocked Lead-Time 8 Weeks	Mfr. Part No. BG303-05-A-0300-L-G Mouser Part No 640-BG30305A0300LG	GCT	Board to Board & Mezzanine Connectors 5w, 2.54mm Pth Header, SIL, TH, Horiz, GF, LCP Natural, Box Learn More about GCT 2 54mm b2b sil headers sockets	Datasheet	Non-Stocked Lead-Time 8 Weeks	£0.308 £0.262 £0.223 £0.199 View £0.183 £0.181 £0.168 £0.161	Min.: 1 Mult.: 1	Headers	5 Position	2.54 mm (0.1 in)	1 Row	Solder	Right Angle	3 A	- 40 C	+ 105 C	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	BG303	Bulk

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2.54mm B2B SIL Headers & Sockets

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