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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Part #

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: $1.67
2,868In 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

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Datasheet

2,868In Stock

$1.67

$1.43

$1.21

$1.08

View

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: $1.88
4,948In 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

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Datasheet

4,948In Stock

$1.88

$1.60

$1.36

$1.22

View

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 Socket,DIL, SMT,L/Prof,D/Ent,No Peg,GF,Tube

BD050-08-A-0-0500-L-D
GCT
1: $1.16
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

$1.16

$1.00

$0.918

$0.828

View

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 8w, 1.27mm Pitch Socket, SIL, TH, Vert, GF, Tube

BD080-08-A-0230-L-D
GCT
1: $1.12
2,105In Stock
5,700Expected 2/10/2026

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

2,105In Stock

5,700Expected 2/10/2026

$1.12

$0.966

$0.883

$0.797

View

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 7w, 1.27mm Pitch Socket, SIL, TH, Vert, GF, Tube

BD080-07-A-0230-L-D
GCT
1: $1.07
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

$1.07

$0.928

$0.849

$0.766

View

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 20w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box

BC020-20-A-0200-0300-L-G
GCT
1: $2.48
1,039In 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

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Datasheet

1,039In Stock

$2.48

$2.11

$1.78

$1.62

View

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 10w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box

BC020-10-A-0380-0300-L-G
GCT
1: $2.28
1,461In 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

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Datasheet

1,461In Stock

$2.28

$1.96

$1.65

$1.47

View

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 4w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box

BC020-04-A-0200-0300-L-G
GCT
1: $1.10
2,665In 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

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Datasheet

2,665In Stock

$1.10

$0.94

$0.936

$0.798

View

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 4W 1mm Pitch Pin Hdr SIL TH Vrt GF

BC020-04-A-0200-0300-L-D
GCT
1: $1.48
1,170In Stock

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

1,170In Stock

$1.48

$1.26

$1.21

$1.14

View

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 2w, 1.0mm Pitch Pin Header, SIL, Through Hole, Vertical, GF, Box

BC020-02-A-0200-0300-L-G
GCT
1: $0.53
3,078In 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

Datasheet

3,078In Stock

$0.53

$0.454

$0.385

$0.344

View

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: $0.87
2,056In Stock
3,000Expected 11/9/2026

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

Datasheet

2,056In Stock

3,000Expected 11/9/2026

$0.87

$0.768

$0.703

$0.634

View

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 5w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box

BC020-05-A-0200-0300-L-G
GCT
1: $1.31
2,237In Stock
20,600Expected 14/10/2026

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

Datasheet

2,237In Stock

20,600Expected 14/10/2026

$1.31

$1.11

$0.941

$0.839

View

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 6w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box

BC020-06-A-0200-0300-L-G
GCT
1: $1.44
2,240In 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

Datasheet

2,240In Stock

$1.44

$1.22

$1.03

$0.923

View

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,1.27mm Socket,DIL, SMT,L/Prof,D/Ent,No Peg,GF,Tube

BD050-10-A-0-0500-L-D
GCT
1: $1.31
2,952In 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

2,952In Stock

$1.31

$1.10

$1.05

$0.985

View

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: $0.748
2,073In 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

Datasheet

2,073In Stock

$0.748

$0.658

$0.601

$0.543

View

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 6w, 1.27mm Pitch Socket, SIL, TH, Vert, GF, Tube

BD080-06-A-0230-L-D
GCT
1: $0.884
927In Stock
6,688On Order

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

Datasheet

927In Stock

6,688On Order

$0.884

$0.755

$0.623

$0.564

View

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 10w, 1.27mm Pitch Socket, SIL, TH, Vert, GF, Tube

BD080-10-A-0230-L-D
GCT
1: $1.01
175In Stock
3,036Expected 28/8/2026

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

Datasheet

175In Stock

3,036Expected 28/8/2026

$1.01

$0.982

$0.736

$0.699

View

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 10w, 1.0mm Pitch Pin Hdr, SIL, TH, Vert, GF, Tube

BC020-10-A-0200-0300-L-D
GCT
3,000: $1.13
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

$1.13

$1.08

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: $1.13
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

$1.13

$1.07

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: $1.44
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

$1.44

$1.37

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: $1.17
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

$1.17

$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-0380-0300-L-G
GCT
3,000: $1.50
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

$1.50

$1.43

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: $1.21
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

$1.21

$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-0380-0300-L-G
GCT
3,000: $1.54
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

$1.54

$1.48

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: $1.24
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

$1.24

$1.18

Min.: 3,000
Mult.: 100

BC020

Bulk

1.27mm B2B SIL Headers & Sockets

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