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 4w, 2.54mm Pth Socket, SIL, TH, Horiz, GF, LCP Natural, Box

BG302-04-A-L-G
GCT
1: Rp9.173
270In 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

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Datasheet

270In Stock

Rp9.173

Rp7.834

Rp7.430

Rp6.788

View

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: Rp13.760
818In 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

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Datasheet

818In Stock

Rp13.760

Rp12.127

Rp11.099

Rp9.999

View

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: Rp3.853
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

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Datasheet

2.698In Stock

Rp3.853

Rp3.321

Rp2.825

Rp2.513

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: Rp4.403
3.257In 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

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Datasheet

3.257In Stock

Rp4.403

Rp3.761

Rp3.211

Rp2.862

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: Rp6.971
521In Stock
3.000Expected 08/10/2026

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

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Datasheet

521In Stock

3.000Expected 08/10/2026

Rp6.971

Rp6.128

Rp5.375

Rp4.752

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: Rp9.540
1.599In 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

Datasheet

1.599In Stock

Rp9.540

Rp8.292

Rp7.283

Rp6.439

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: Rp8.256
308In Stock
3.000Expected 13/11/2026

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

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Datasheet

308In Stock

3.000Expected 13/11/2026

Rp8.256

Rp7.173

Rp6.311

Rp5.577

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: Rp13.393
2.122In Stock
5.000Expected 20/11/2026

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

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Datasheet

2.122In Stock

5.000Expected 20/11/2026

Rp13.393

Rp11.723

Rp10.714

Rp9.668

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: Rp17.429
2.305In Stock

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

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Datasheet

2.305In Stock

Cut Tape

Rp17.429

Rp14.787

Rp14.769

Rp12.549

Reel

Rp9.540

View

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

BG306-05-A-1-0400-L-B
GCT
1: Rp21.465
905In 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

Datasheet

905In Stock

Cut Tape

Rp21.465

Rp18.181

Rp17.447

Rp16.328

Reel

Rp11.870

View

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 6w, 2.54mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box

BG030-06-A-0450-0300-N-G
GCT
1: Rp4.587
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

Datasheet

3.490Expected 05/11/2026

Rp4.587

Rp3.944

Rp3.486

Rp3.027

View

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: Rp7.522
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

Datasheet

Non-Stocked Lead-Time 8 Weeks

Rp7.522

Rp6.403

Rp5.449

Rp4.862

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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