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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Part #

Board to Board & Mezzanine Connectors 5w, 2.54mm Pth Socket, SIL, TH, Horiz, GF, LCP Natural, Box

BG302-05-A-L-G
GCT
1: $0.93
483In Stock
3,000Expected 2026-02-27

Mfr. Part #
BG302-05-A-L-G

Mouser Part #
640-BG302-05-A-L-G

GCT

Board to Board & Mezzanine Connectors 5w, 2.54mm Pth Socket, SIL, TH, Horiz, GF, LCP Natural, Box

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Datasheet

483In Stock

3,000Expected 2026-02-27

$0.93

$0.758

$0.618

$0.536

View

Min.: 1
Mult.: 1

Sockets

5 Position

2.54 mm (0.1 in)

1 Row

Solder

Horizontal

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: $1.01
883In Stock

Mfr. Part #
BG302-06-A-L-G

Mouser Part #
640-BG302-06-A-L-G

GCT

Board to Board & Mezzanine Connectors 6w, 2.54mm Pth Socket, SIL, TH, Horiz, GF, LCP Natural, Box

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Datasheet

883In Stock

$1.01

$0.849

$0.722

$0.645

View

Min.: 1
Mult.: 1

Sockets

6 Position

2.54 mm (0.1 in)

1 Row

Solder

Horizontal

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: $0.326
3,329In Stock

Mfr. Part #
BG303-02-A-0300-L-G

Mouser Part #
640-BG30302A0300LG

GCT

Board to Board & Mezzanine Connectors 2w, 2.54mm Pth Header, SIL, TH, Horiz, GF, LCP Natural, Box

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Datasheet

3,329In Stock

$0.326

$0.26

$0.212

$0.184

View

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: $0.372
893In Stock

Mfr. Part #
BG303-03-A-0300-L-G

Mouser Part #
640-BG30303A0300LG

GCT

Board to Board & Mezzanine Connectors 3w, 2.54mm Pth Header, SIL, TH, Horiz, GF, LCP Natural, Box

Learn More

Datasheet

893In Stock

$0.372

$0.299

$0.243

$0.211

View

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: $0.481
1,358In Stock

Mfr. Part #
BG303-04-A-0300-L-G

Mouser Part #
640-BG30304A0300LG

GCT

Board to Board & Mezzanine Connectors 4w, 2.54mm Pth Header, SIL, TH, Horiz, GF, LCP Natural, Box

Learn More

Datasheet

1,358In Stock

$0.481

$0.405

$0.344

$0.307

View

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: $0.636
3,231In Stock

Mfr. Part #
BG303-06-A-0300-L-G

Mouser Part #
640-BG30306A0300LG

GCT

Board to Board & Mezzanine Connectors 6w, 2.54mm Pth Header, SIL, TH, Horiz, GF, LCP Natural, Box

Learn More

Datasheet

3,231In Stock

$0.636

$0.535

$0.456

$0.386

View

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: $0.558
598In Stock

Mfr. Part #
BG304-04-A-0500-L-G

Mouser Part #
640-BG30404A0500LG

GCT

Board to Board & Mezzanine Connectors 4w, 2.54mm Pth Hdr, U Shaped, Single Insul, LCP Natural, Box

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Datasheet

598In Stock

$0.558

$0.468

$0.398

$0.357

View

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: $0.961
4,158In Stock

Mfr. Part #
BG306-02-A-2-0400-L-G

Mouser Part #
640-BG30602A20400LG

GCT

Board to Board & Mezzanine Connectors 2w, 2.54mm Pth Socket, SIL, SMT, Vert, R2 GF, LCP Natural, Box

Learn More

Datasheet

4,158In Stock

$0.961

$0.801

$0.667

$0.622

View

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 4w, 2.54mm Pitch Socket, SIL, SMT, Vert, R1, GF, LCP Nat, T+R+C

BG306-04-A-1-0400-L-B
GCT
1: $1.43
2,420In Stock

Mfr. Part #
BG306-04-A-1-0400-L-B

Mouser Part #
640-BG30604A10400LB

GCT

Board to Board & Mezzanine Connectors 4w, 2.54mm Pitch Socket, SIL, SMT, Vert, R1, GF, LCP Nat, T+R+C

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Datasheet

2,420In Stock

Cut Tape

$1.43

$1.17

$0.95

$0.825

Reel

$0.718

View

Min.: 1
Mult.: 1

Reel: 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 5w, 2.54mm Pitch Socket, SIL, SMT, Vert, R1, GF, LCP Nat, T+R+C

BG306-05-A-1-0400-L-B
GCT
1: $1.63
906In Stock

Mfr. Part #
BG306-05-A-1-0400-L-B

Mouser Part #
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

Datasheet

906In Stock

Cut Tape

$1.63

$1.38

$1.17

$1.05

Reel

$0.874

$0.843

Min.: 1
Mult.: 1

Reel: 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 5w, 2.54mm Pth Socket, SIL, SMT, Horiz, GF, LCP Natural, T+R

BG300-05-A-L-A
GCT
1: $1.32
7,838On Order

Mfr. Part #
BG300-05-A-L-A

Mouser Part #
640-BG300-05-A-L-A

GCT

Board to Board & Mezzanine Connectors 5w, 2.54mm Pth Socket, SIL, SMT, Horiz, GF, LCP Natural, T+R

Learn More

Datasheet

7,838On Order

Cut Tape

$1.32

$1.10

$1.06

$0.992

Reel

$0.691

View

Min.: 1
Mult.: 1

Reel: 1,400

Sockets

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)

BG300

Reel, Cut Tape

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: $0.698
Non-Stocked Lead-Time 8 Weeks

Mfr. Part #
BG303-05-A-0300-L-G

Mouser Part #
640-BG30305A0300LG

GCT

Board to Board & Mezzanine Connectors 5w, 2.54mm Pth Header, SIL, TH, Horiz, GF, LCP Natural, Box

Learn More

Datasheet

Non-Stocked Lead-Time 8 Weeks

$0.698

$0.609

$0.535

$0.473

View

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

2.54mm B2B SIL Headers & Sockets

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