Board to Board & Mezzanine Connectors

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1.27mm B2B SIL Headers & Sockets

GCT 1.27mm B2B SIL Headers and Sockets offer either through-hole or surface-mount mounting types and a 1.4mm to 4.3mm profile range. The BD020 header contains from 2 to 50 contacts, a single-row design, and 0.46mm square pin size. The BD050 socket features 4 to 80 contacts, dual-row design, and is a dual-entry type, while the BD080 socket has 3 to 40 contacts, single-row design, and straight orientation. GCT 1.27mm B2B SIL Headers and Sockets provide 20mΩ contact resistance, 1A current rating, and -40°C to +105°C temperature range.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) 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 8w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box BC020-08-A-0200-0300-L-G GCT 1: $1.23 2,738In Stock	Mfr. Part No. BC020-08-A-0200-0300-L-G Mouser Part No 640-BC02008A02300LG	GCT	Board to Board & Mezzanine Connectors 8w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box Learn More about GCT 1mm b2b sil headers sockets	Datasheet	2,738In Stock	$1.23 $1.05 $0.89 $0.794 View $0.751 $0.711 $0.675	Min.: 1 Mult.: 1	Headers	8 Position	1 mm (0.039 in)	1 Row	Solder	Straight	1 A	- 40 C	+ 105 C	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	BC020	Bulk
Board to Board & Mezzanine Connectors 10w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box BC020-10-A-0200-0300-L-G GCT 1: $1.40 4,944In Stock	Mfr. Part No. BC020-10-A-0200-0300-L-G Mouser Part No 640-BC02010A02300LG	GCT	Board to Board & Mezzanine Connectors 10w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box Learn More about GCT 1mm b2b sil headers sockets	Datasheet	4,944In Stock	$1.40 $1.21 $1.18 $1.05 View $0.997 $0.904 $0.828 $0.80 $0.752	Min.: 1 Mult.: 1	Headers	10 Position	1 mm (0.039 in)	1 Row	Solder	Straight	1 A	- 40 C	+ 105 C	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	BC020	Bulk
Board to Board & Mezzanine Connectors 8w, 1.27mm Pitch Socket, SIL, TH, Vert, GF, Tube BD080-08-A-0230-L-D GCT 1: $0.82 2,055In Stock 5,700Expected 14/10/2026	Mfr. Part No. BD080-08-A-0230-L-D Mouser Part No 640-BD080-08A0230LD	GCT	Board to Board & Mezzanine Connectors 8w, 1.27mm Pitch Socket, SIL, TH, Vert, GF, Tube	Datasheet	2,055In Stock 5,700Expected 14/10/2026	$0.82 $0.71 $0.649 $0.586 View $0.534 $0.442 $0.391	Min.: 1 Mult.: 1	Sockets	8 Position	1.27 mm (0.05 in)	1 Row	Solder	Vertical	1 A	- 40 C	+ 105 C	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	BD080	Tube
Board to Board & Mezzanine Connectors 8w,1.27mm Socket,DIL, SMT,L/Prof,D/Ent,No Peg,GF,Tube BD050-08-A-0-0500-L-D GCT 1: $0.85 2,315In Stock	Mfr. Part No. BD050-08-A-0-0500-L-D Mouser Part No 640-BD050-08A00500LD	GCT	Board to Board & Mezzanine Connectors 8w,1.27mm Socket,DIL, SMT,L/Prof,D/Ent,No Peg,GF,Tube	Datasheet	2,315In Stock	$0.85 $0.738 $0.675 $0.609 View $0.555 $0.46 $0.406 $0.402	Min.: 1 Mult.: 1	Sockets	8 Position	1.27 mm (0.05 in)	2 Row	Solder	Vertical	1 A	- 40 C	+ 105 C	Gold	Phosphor Bronze	Liquid Crystal Polymer (LCP)	BD050	Tube
Board to Board & Mezzanine Connectors 7w, 1.27mm Pitch Socket, SIL, TH, Vert, GF, Tube BD080-07-A-0230-L-D GCT 1: $0.79 1,322In Stock	Mfr. Part No. BD080-07-A-0230-L-D Mouser Part No 640-BD080-07A0230LD	GCT	Board to Board & Mezzanine Connectors 7w, 1.27mm Pitch Socket, SIL, TH, Vert, GF, Tube	Datasheet	1,322In Stock	$0.79 $0.682 $0.624 $0.563 View $0.513 $0.425 $0.377 $0.372	Min.: 1 Mult.: 1	Sockets	7 Position	1.27 mm (0.05 in)	1 Row	Solder	Vertical	1 A	- 40 C	+ 105 C	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	BD080	Tube
Board to Board & Mezzanine Connectors 4w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box BC020-04-A-0200-0300-L-G GCT 1: $0.81 2,652In Stock	Mfr. Part No. BC020-04-A-0200-0300-L-G Mouser Part No 640-BC02004A02300LG	GCT	Board to Board & Mezzanine Connectors 4w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box Learn More about GCT 1mm b2b sil headers sockets	Datasheet	2,652In Stock	$0.81 $0.691 $0.587 $0.524 View $0.499 $0.485 $0.445 $0.424	Min.: 1 Mult.: 1	Headers	4 Position	1 mm (0.039 in)	1 Row	Solder	Straight	1 A	- 40 C	+ 105 C	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	BC020	Bulk
Board to Board & Mezzanine Connectors 6w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box BC020-06-A-0200-0300-L-G GCT 1: $1.06 2,220In Stock	Mfr. Part No. BC020-06-A-0200-0300-L-G Mouser Part No 640-BC02006A02300LG	GCT	Board to Board & Mezzanine Connectors 6w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box Learn More about GCT 1mm b2b sil headers sockets	Datasheet	2,220In Stock	$1.06 $0.933 $0.914 $0.816 View $0.776 $0.696 $0.649 $0.608 $0.577	Min.: 1 Mult.: 1	Headers	6 Position	1 mm (0.039 in)	1 Row	Solder	Straight	1 A	- 40 C	+ 105 C	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	BC020	Bulk
Board to Board & Mezzanine Connectors 10w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box BC020-10-A-0380-0300-L-G GCT 1: $1.68 1,446In Stock	Mfr. Part No. BC020-10-A-0380-0300-L-G Mouser Part No 640-BC02010A038003LG	GCT	Board to Board & Mezzanine Connectors 10w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box Learn More about GCT 1mm b2b sil headers sockets	Datasheet	1,446In Stock	$1.68 $1.44 $1.21 $1.12 View $1.02 $1.00 $0.922	Min.: 1 Mult.: 1	Headers	10 Position	1 mm (0.039 in)	1 Row	Solder	Straight	1 A	- 40 C	+ 105 C	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	BC020	Bulk
Board to Board & Mezzanine Connectors 20w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box BC020-20-A-0200-0300-L-G GCT 1: $1.82 1,034In Stock	Mfr. Part No. BC020-20-A-0200-0300-L-G Mouser Part No 640-BC02020A02300LG	GCT	Board to Board & Mezzanine Connectors 20w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box Learn More about GCT 1mm b2b sil headers sockets	Datasheet	1,034In Stock	$1.82 $1.55 $1.31 $1.21 View $1.11 $1.04 $0.995	Min.: 1 Mult.: 1	Headers	20 Position	1 mm (0.039 in)	1 Row	Solder	Straight	1 A	- 40 C	+ 105 C	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	BC020	Bulk
Board to Board & Mezzanine Connectors 6w, 1.27mm Pitch Socket, SIL, TH, Vert, GF, Tube BD080-06-A-0230-L-D GCT 1: $0.65 7,100In Stock 3,040Expected 30/10/2026	Mfr. Part No. BD080-06-A-0230-L-D Mouser Part No 640-BD08006A0230LD	GCT	Board to Board & Mezzanine Connectors 6w, 1.27mm Pitch Socket, SIL, TH, Vert, GF, Tube Learn More about GCT 1 27mm b2b headers sockets	Datasheet	7,100In Stock 3,040Expected 30/10/2026	$0.65 $0.555 $0.458 $0.415 View $0.398 $0.393 $0.357 $0.34	Min.: 1 Mult.: 1	Sockets	6 Position	1.27 mm (0.05 in)	1 Row	Solder	Vertical	1 A	- 40 C	+ 105 C	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	BD080	Tube
Board to Board & Mezzanine Connectors 2w, 1.0mm Pitch Pin Header, SIL, Through Hole, Vertical, GF, Box BC020-02-A-0200-0300-L-G GCT 1: $0.39 2,513In Stock	Mfr. Part No. BC020-02-A-0200-0300-L-G Mouser Part No 640-BC02002A02300LG	GCT	Board to Board & Mezzanine Connectors 2w, 1.0mm Pitch Pin Header, SIL, Through Hole, Vertical, GF, Box Learn More about GCT 1mm b2b sil headers sockets	Datasheet	2,513In Stock	$0.39 $0.334 $0.283 $0.253 View $0.24 $0.233 $0.215 $0.204	Min.: 1 Mult.: 1	Headers	2 Position	1 mm (0.039 in)	1 Row	Solder	Straight	1 A	- 40 C	+ 105 C	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	BC020	Bulk
Board to Board & Mezzanine Connectors 3w, 1.0mm Pitch Pin Header, SIL, Through Hole, Vertical, GF, Box BC020-03-A-0200-0300-L-G GCT 1: $0.57 4,683In Stock	Mfr. Part No. BC020-03-A-0200-0300-L-G Mouser Part No 640-BC02003A02300LG	GCT	Board to Board & Mezzanine Connectors 3w, 1.0mm Pitch Pin Header, SIL, Through Hole, Vertical, GF, Box Learn More about GCT 1mm b2b sil headers sockets	Datasheet	4,683In Stock	$0.57 $0.487 $0.413 $0.369 View $0.351 $0.313 $0.298	Min.: 1 Mult.: 1	Headers	3 Position	1 mm (0.039 in)	1 Row	Solder	Straight	1 A	- 40 C	+ 105 C	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	BC020	Bulk
Board to Board & Mezzanine Connectors 10w,1.27mm Socket,DIL, SMT,L/Prof,D/Ent,No Peg,GF,Tube BD050-10-A-0-0500-L-D GCT 1: $0.96 2,927In Stock	Mfr. Part No. BD050-10-A-0-0500-L-D Mouser Part No 640-BD050-10A00500LD	GCT	Board to Board & Mezzanine Connectors 10w,1.27mm Socket,DIL, SMT,L/Prof,D/Ent,No Peg,GF,Tube	Datasheet	2,927In Stock	$0.96 $0.807 $0.774 $0.724 View $0.658 $0.592 $0.539 $0.505 $0.494	Min.: 1 Mult.: 1	Sockets												BD050	Tube
Board to Board & Mezzanine Connectors 4w, 1.27mm Pitch Socket, SIL, TH, Vert, GF, Tube BD080-04-A-0230-L-D GCT 1: $0.55 1,763In Stock	Mfr. Part No. BD080-04-A-0230-L-D Mouser Part No 640-BD08004A0230LD	GCT	Board to Board & Mezzanine Connectors 4w, 1.27mm Pitch Socket, SIL, TH, Vert, GF, Tube Learn More about GCT 1 27mm b2b headers sockets	Datasheet	1,763In Stock	$0.55 $0.484 $0.442 $0.399 View $0.364 $0.307 $0.288 $0.275 $0.261	Min.: 1 Mult.: 1	Sockets	4 Position	1.27 mm (0.05 in)	1 Row	Solder	Vertical	1 A	- 40 C	+ 105 C	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	BD080	Tube
Board to Board & Mezzanine Connectors 10w, 1.27mm Pitch Socket, SIL, TH, Vert, GF, Tube BD080-10-A-0230-L-D GCT 1: $0.74 4,929In Stock	Mfr. Part No. BD080-10-A-0230-L-D Mouser Part No 640-BD08010A0230LD	GCT	Board to Board & Mezzanine Connectors 10w, 1.27mm Pitch Socket, SIL, TH, Vert, GF, Tube Learn More about GCT 1 27mm b2b headers sockets	Datasheet	4,929In Stock	$0.74 $0.722 $0.541 $0.514 View $0.476 $0.447 $0.407 $0.387	Min.: 1 Mult.: 1	Sockets	10 Position	1.27 mm (0.05 in)	1 Row	Solder	Vertical	1 A	- 40 C	+ 105 C	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	BD080	Tube
Board to Board & Mezzanine Connectors 5w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box BC020-05-A-0200-0300-L-G GCT 1: $1.02 35,817Expected 20/11/2026	Mfr. Part No. BC020-05-A-0200-0300-L-G Mouser Part No 640-BC02005A02300LG	GCT	Board to Board & Mezzanine Connectors 5w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box Learn More about GCT 1mm b2b sil headers sockets	Datasheet	35,817Expected 20/11/2026	$1.02 $0.863 $0.849 $0.733 View $0.722 $0.641 $0.601 $0.581 $0.545	Min.: 1 Mult.: 1	Headers	5 Position	1 mm (0.039 in)	1 Row	Solder	Straight	1 A	- 40 C	+ 105 C	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	BC020	Bulk
Board to Board & Mezzanine Connectors 4W 1mm Pitch Pin Hdr SIL TH Vrt GF BC020-04-A-0200-0300-L-D GCT 1: $1.02 2,809Expected 13/11/2026	Mfr. Part No. BC020-04-A-0200-0300-L-D Mouser Part No 640-BC020-4A23LD	GCT	Board to Board & Mezzanine Connectors 4W 1mm Pitch Pin Hdr SIL TH Vrt GF	Datasheet	2,809Expected 13/11/2026	$1.02 $0.863 $0.713 $0.712 View $0.646 $0.634 $0.621 $0.555	Min.: 1 Mult.: 1	Headers	4 Position	1 mm (0.039 in)	1 Row	Solder	Straight	1 A	- 40 C	+ 105 C	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	BC020	Tube
Board to Board & Mezzanine Connectors 10w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Tube BC020-10-A-0200-0300-L-D GCT 3,000: $0.833 Non-Stocked Lead-Time 8 Weeks	Mfr. Part No. BC020-10-A-0200-0300-L-D Mouser Part No 640-BC020-10A20003LD	GCT	Board to Board & Mezzanine Connectors 10w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Tube	Datasheet	Non-Stocked Lead-Time 8 Weeks	$0.833	Min.: 3,000 Mult.: 60													BC020	Tube
Board to Board & Mezzanine Connectors 11w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box BC020-11-A-0200-0300-L-G GCT 3,000: $0.829 Non-Stocked Lead-Time 8 Weeks	Mfr. Part No. BC020-11-A-0200-0300-L-G Mouser Part No 640-BC020-11A20003LG	GCT	Board to Board & Mezzanine Connectors 11w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box	Datasheet	Non-Stocked Lead-Time 8 Weeks	$0.829	Min.: 3,000 Mult.: 100													BC020	Bulk
Board to Board & Mezzanine Connectors 11w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box BC020-11-A-0380-0300-L-G GCT 3,000: $1.11 Non-Stocked Lead-Time 8 Weeks	Mfr. Part No. BC020-11-A-0380-0300-L-G Mouser Part No 640-BC020-11A38003LG	GCT	Board to Board & Mezzanine Connectors 11w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box	Datasheet	Non-Stocked Lead-Time 8 Weeks	$1.11	Min.: 3,000 Mult.: 100													BC020	Bulk
Board to Board & Mezzanine Connectors 12w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box BC020-12-A-0200-0300-L-G GCT 3,000: $0.858 Non-Stocked Lead-Time 8 Weeks	Mfr. Part No. BC020-12-A-0200-0300-L-G Mouser Part No 640-BC020-12A20003LG	GCT	Board to Board & Mezzanine Connectors 12w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box	Datasheet	Non-Stocked Lead-Time 8 Weeks	$0.858	Min.: 3,000 Mult.: 100													BC020	Bulk
Board to Board & Mezzanine Connectors 12w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box BC020-12-A-0380-0300-L-G GCT 3,000: $1.15 Non-Stocked Lead-Time 8 Weeks	Mfr. Part No. BC020-12-A-0380-0300-L-G Mouser Part No 640-BC020-12A38003LG	GCT	Board to Board & Mezzanine Connectors 12w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box	Datasheet	Non-Stocked Lead-Time 8 Weeks	$1.15	Min.: 3,000 Mult.: 100													BC020	Bulk
Board to Board & Mezzanine Connectors 13w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box BC020-13-A-0200-0300-L-G GCT 3,000: $0.887 Non-Stocked Lead-Time 8 Weeks	Mfr. Part No. BC020-13-A-0200-0300-L-G Mouser Part No 640-BC020-13A20003LG	GCT	Board to Board & Mezzanine Connectors 13w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box	Datasheet	Non-Stocked Lead-Time 8 Weeks	$0.887	Min.: 3,000 Mult.: 100													BC020	Bulk
Board to Board & Mezzanine Connectors 13w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box BC020-13-A-0380-0300-L-G GCT 3,000: $1.18 Non-Stocked Lead-Time 8 Weeks	Mfr. Part No. BC020-13-A-0380-0300-L-G Mouser Part No 640-BC020-13A38003LG	GCT	Board to Board & Mezzanine Connectors 13w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box	Datasheet	Non-Stocked Lead-Time 8 Weeks	$1.18	Min.: 3,000 Mult.: 100													BC020	Bulk
Board to Board & Mezzanine Connectors 14w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box BC020-14-A-0200-0300-L-G GCT 3,000: $0.911 Non-Stocked Lead-Time 8 Weeks	Mfr. Part No. BC020-14-A-0200-0300-L-G Mouser Part No 640-BC020-14A20003LG	GCT	Board to Board & Mezzanine Connectors 14w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box	Datasheet	Non-Stocked Lead-Time 8 Weeks	$0.911	Min.: 3,000 Mult.: 100													BC020	Bulk

1.27mm B2B SIL Headers & Sockets

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