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 Pitch Socket, SIL, SMT, Vert, R1, GF, LCP Nat, T+R+C

BG306-04-A-1-0400-L-B
GCT
1: Rp17.429
5.515In 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

Learn More

Datasheet

5.515In Stock

Cut Tape

Rp17.429

Rp14.787

Rp14.750

Rp12.567

Reel

Rp8.714

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 10w, 2.54mm Pitch Socket, DIL,SMT, Vert, No Peg, GF, Tube

BG120-10-A-0-N-D
GCT
1: Rp20.181
4.995In Stock

Mfr. Part No.
BG120-10-A-0-N-D

Mouser Part No
640-BG120-10-A-0-N-D

GCT

Board to Board & Mezzanine Connectors 10w, 2.54mm Pitch Socket, DIL,SMT, Vert, No Peg, GF, Tube

Learn More

Datasheet

4.995In Stock

Rp20.181

Rp18.529

Rp15.356

Rp14.200

View

Min.: 1
Mult.: 1

Sockets

10 Position

2.54 mm (0.1 in)

2 Row

Solder

Straight

3 A

- 40 C

+ 105 C

Gold

Phosphor Bronze

Nylon

BG120

Tube

Board to Board & Mezzanine Connectors 6w, 2.54mm Pitch Socket, SIL, SMT, Vert, R1, GF, LCP Nat, T+R+C

BG306-06-A-1-0400-L-B
GCT
1: Rp22.199
11.862In Stock

Mfr. Part No.
BG306-06-A-1-0400-L-B

Mouser Part No
640-BG30606A10400LB

GCT

Board to Board & Mezzanine Connectors 6w, 2.54mm Pitch Socket, SIL, SMT, Vert, R1, GF, LCP Nat, T+R+C

Learn More

Datasheet

11.862In Stock

Cut Tape

Rp22.199

Rp18.896

Rp17.887

Rp15.979

View

Reel

Rp10.054

Min.: 1
Mult.: 1

: 1.200

Sockets

6 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 3w, 2.54mm Pitch Socket, SIL, SMT, Vert, R1, GF, LCP Nat, T+R+C

BG306-03-A-1-0400-L-B
GCT
1: Rp14.126
4.351In Stock

Mfr. Part No.
BG306-03-A-1-0400-L-B

Mouser Part No
640-BG30603A10400LB

GCT

Board to Board & Mezzanine Connectors 3w, 2.54mm Pitch Socket, SIL, SMT, Vert, R1, GF, LCP Nat, T+R+C

Learn More

Datasheet

4.351In Stock

Cut Tape

Rp14.126

Rp12.053

Rp11.008

Rp10.237

Rp6.183

Reel

Rp6.183

Min.: 1
Mult.: 1

: 1.200

Sockets

3 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 3w, 2.54mm Pth Header, SIL, SMT, Horiz, GF, LCP Natural, T+R+C

BG301-03-A-0540-L-B
GCT
1: Rp9.173
3.761In Stock

Mfr. Part No.
BG301-03-A-0540-L-B

Mouser Part No
640-BG30103A0540LB

GCT

Board to Board & Mezzanine Connectors 3w, 2.54mm Pth Header, SIL, SMT, Horiz, GF, LCP Natural, T+R+C

Learn More

Datasheet

3.761In Stock

Cut Tape

Rp9.173

Rp7.834

Rp6.660

Rp5.944

Reel

Rp4.953

View

Min.: 1
Mult.: 1

: 1.000

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)

BG301

Reel, Cut Tape

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

BG302-05-A-L-G
GCT
1: Rp11.191
3.342In Stock

Mfr. Part No.
BG302-05-A-L-G

Mouser Part No
640-BG302-05-A-L-G

GCT

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

Learn More

Datasheet

3.342In Stock

Rp11.191

Rp9.577

Rp8.146

Rp7.265

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 Pitch Socket, SIL, TH, Vert, Dual Beam, GF, Tube

BG095-06-A-N-D
GCT
1: Rp9.723
5.141In Stock

Mfr. Part No.
BG095-06-A-N-D

Mouser Part No
640-BG095-06-A-N-D

GCT

Board to Board & Mezzanine Connectors 6w, 2.54mm Pitch Socket, SIL, TH, Vert, Dual Beam, GF, Tube

Learn More

Datasheet

5.141In Stock

Rp9.723

Rp9.540

Rp9.155

Rp7.118

View

Min.: 1
Mult.: 1

Headers

6 Position

2.54 mm (0.1 in)

1 Row

Solder

Vertical

3 A

- 40 C

+ 105 C

Gold

Phosphor Bronze

Nylon

BG095

Tube

Board to Board & Mezzanine Connectors 4w, 2.54mm Pth Header, SIL, SMT, Horiz, GF, LCP Natural, T+R+C

BG301-04-A-0540-L-B
GCT
1: Rp11.741
3.387In Stock

Mfr. Part No.
BG301-04-A-0540-L-B

Mouser Part No
640-BG30104A0540LB

GCT

Board to Board & Mezzanine Connectors 4w, 2.54mm Pth Header, SIL, SMT, Horiz, GF, LCP Natural, T+R+C

Learn More

Datasheet

3.387In Stock

Cut Tape

Rp11.741

Rp9.980

Rp8.494

Rp7.577

Reel

Rp5.412

View

Min.: 1
Mult.: 1

: 1.000

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)

BG301

Reel, Cut Tape

Board to Board & Mezzanine Connectors 5w, 2.54mm Pitch Socket, SIL, TH, Vert, Dual Beam, GF, Tube

BG095-05-A-N-D
GCT
1: Rp9.907
3.230In Stock

Mfr. Part No.
BG095-05-A-N-D

Mouser Part No
640-BG095-05-A-N-D

GCT

Board to Board & Mezzanine Connectors 5w, 2.54mm Pitch Socket, SIL, TH, Vert, Dual Beam, GF, Tube

Learn More

Datasheet

3.230In Stock

Rp9.907

Rp9.797

Rp7.614

Rp7.027

View

Min.: 1
Mult.: 1

Headers

5 Position

2.54 mm (0.1 in)

1 Row

Solder

Vertical

3 A

- 40 C

+ 105 C

Gold

Phosphor Bronze

Nylon

BG095

Tube

Board to Board & Mezzanine Connectors 4w, 2.54mm Pitch Socket, SIL, SMT, Vert, D/Ent, R1, GF, Tube

BG125-04-A-1-1-0440-N-D
GCT
1: Rp10.824
59.478In Stock

Mfr. Part No.
BG125-04-A-1-1-0440-N-D

Mouser Part No
640-BG12504A110440ND

GCT

Board to Board & Mezzanine Connectors 4w, 2.54mm Pitch Socket, SIL, SMT, Vert, D/Ent, R1, GF, Tube

Learn More

Datasheet

59.478In Stock

Rp10.824

Rp9.356

Rp8.568

Rp7.705

View

Min.: 1
Mult.: 1

Sockets

4 Position

2.54 mm (0.1 in)

1 Row

Solder

Vertical

3 A

- 40 C

+ 105 C

Gold

Phosphor Bronze

Nylon

BG125

Tube

Board to Board & Mezzanine Connectors 8w, 2.54mm Pitch Socket, DIL,SMT, Vert, No Peg, GF, Tube

BG120-08-A-0-N-D
GCT
1: Rp17.429
6.377In Stock
4.648Expected 14/10/2026

Mfr. Part No.
BG120-08-A-0-N-D

Mouser Part No
640-BG120-08-A-0-N-D

GCT

Board to Board & Mezzanine Connectors 8w, 2.54mm Pitch Socket, DIL,SMT, Vert, No Peg, GF, Tube

Learn More

Datasheet

6.377In Stock

4.648Expected 14/10/2026

Rp17.429

Rp14.787

Rp14.181

Rp13.283

View

Min.: 1
Mult.: 1

Sockets

8 Position

2.54 mm (0.1 in)

2 Row

Solder

Straight

3 A

- 40 C

+ 105 C

Gold

Phosphor Bronze

Nylon

BG120

Tube

Board to Board & Mezzanine Connectors 5w, 2.54mm Pitch Socket, SIL, SMT, Vert, D/Ent, R1, GF, Tube

BG125-05-A-1-1-0440-N-D
GCT
1: Rp11.008
6.529In Stock

Mfr. Part No.
BG125-05-A-1-1-0440-N-D

Mouser Part No
640-BG12505A110440ND

GCT

Board to Board & Mezzanine Connectors 5w, 2.54mm Pitch Socket, SIL, SMT, Vert, D/Ent, R1, GF, Tube

Learn More

Datasheet

6.529In Stock

Rp11.008

Rp9.595

Rp8.769

Rp7.907

View

Min.: 1
Mult.: 1

Sockets

5 Position

2.54 mm (0.1 in)

1 Row

Solder

Vertical

3 A

- 40 C

+ 105 C

Gold

Phosphor Bronze

Nylon

BG125

Tube

Board to Board & Mezzanine Connectors 4w, 2.54mm Pth Socket, SIL, SMT, Horiz, GF, LCP Natural, T+R

BG300-04-A-L-A
GCT
1: Rp14.310
5.471In Stock

Mfr. Part No.
BG300-04-A-L-A

Mouser Part No
640-BG300-04-A-L-A

GCT

Board to Board & Mezzanine Connectors 4w, 2.54mm Pth Socket, SIL, SMT, Horiz, GF, LCP Natural, T+R

Learn More

Datasheet

5.471In Stock

Cut Tape

Rp14.310

Rp12.585

Rp11.521

Rp10.384

Reel

Rp7.852

View

Min.: 1
Mult.: 1

: 1.400

Sockets

4 Position

2.54 mm (0.1 in)

1 Row

Solder

Horizontal

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 Socket, SIL, SMT, Horiz, GF, LCP Natural, T+R

BG300-05-A-L-A
GCT
1: Rp15.411
8.778In Stock

Mfr. Part No.
BG300-05-A-L-A

Mouser Part No
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

8.778In Stock

Cut Tape

Rp15.411

Rp13.081

Rp11.118

Rp9.925

Reel

Rp9.228

View

Min.: 1
Mult.: 1

: 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 6w, 2.54mm Pth Header, SIL, SMT, Horiz, GF, LCP Natural, T+R+C

BG301-06-A-0540-L-B
GCT
1: Rp16.511
3.996In Stock

Mfr. Part No.
BG301-06-A-0540-L-B

Mouser Part No
640-BG30106A0540LB

GCT

Board to Board & Mezzanine Connectors 6w, 2.54mm Pth Header, SIL, SMT, Horiz, GF, LCP Natural, T+R+C

Learn More

Datasheet

3.996In Stock

Cut Tape

Rp16.511

Rp13.888

Rp13.338

Rp12.475

Reel

Rp8.935

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

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)

BG301

Reel, Cut Tape, MouseReel

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

BG302-02-A-L-G
GCT
1: Rp7.522
11.090In Stock
9.000Expected 25/09/2026

Mfr. Part No.
BG302-02-A-L-G

Mouser Part No
640-BG302-02-A-L-G

GCT

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

Learn More

Datasheet

11.090In Stock

9.000Expected 25/09/2026

Rp7.522

Rp6.531

Rp5.742

Rp5.082

View

Min.: 1
Mult.: 1

Sockets

2 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 Pitch Pin Hdr, SIL, TH, Vert, GF, Box

BG030-02-A-0450-0300-N-G
GCT
1: Rp3.853
3.139In Stock
3.000Expected 14/10/2026

Mfr. Part No.
BG030-02-A-0450-0300-N-G

Mouser Part No
640-BG032A045003NG

GCT

Board to Board & Mezzanine Connectors 2w, 2.54mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box

Learn More

Datasheet

3.139In Stock

3.000Expected 14/10/2026

Rp3.853

Rp1.523

Rp1.248

Rp1.119

View

Min.: 1
Mult.: 1

Headers

2 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 6w, 2.54mm Pitch Pin Hdr, SIL, TH, Vert, GF, Box

BG030-06-A-0450-0300-N-G
GCT
1: Rp4.587
2.521In Stock

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

2.521In Stock

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 4w, 2.54mm Pitch Socket, SIL, TH, Vert, Dual Beam, GF, Tube

BG095-04-A-N-D
GCT
1: Rp9.540
357In Stock
3.078Expected 07/10/2026

Mfr. Part No.
BG095-04-A-N-D

Mouser Part No
640-BG095-04-A-N-D

GCT

Board to Board & Mezzanine Connectors 4w, 2.54mm Pitch Socket, SIL, TH, Vert, Dual Beam, GF, Tube

Learn More

Datasheet

357In Stock

3.078Expected 07/10/2026

Rp9.540

Rp8.366

Rp7.742

Rp6.660

View

Min.: 1
Mult.: 1

Headers

4 Position

2.54 mm (0.1 in)

1 Row

Solder

Vertical

3 A

- 40 C

+ 105 C

Gold

Phosphor Bronze

Nylon

BG095

Tube

Board to Board & Mezzanine Connectors 3w, 2.54mm Pitch Socket, SIL, SMT, Vert, D/Ent, R1, GF, Tube

BG125-03-A-1-1-0440-N-D
GCT
1: Rp9.173
5.528In Stock

Mfr. Part No.
BG125-03-A-1-1-0440-N-D

Mouser Part No
640-BG12503A110440ND

GCT

Board to Board & Mezzanine Connectors 3w, 2.54mm Pitch Socket, SIL, SMT, Vert, D/Ent, R1, GF, Tube

Learn More

Datasheet

5.528In Stock

Rp9.173

Rp8.109

Rp7.412

Rp6.678

View

Min.: 1
Mult.: 1

Sockets

3 Position

2.54 mm (0.1 in)

1 Row

Solder

Straight

3 A

- 40 C

+ 105 C

Gold

Phosphor Bronze

Nylon

BG125

Tube

Board to Board & Mezzanine Connectors 10w, 2.54mm Pitch Socket, SIL, SMT, Vert, D/Ent,R1, GF, Tube

BG125-10-A-1-1-0440-N-D
GCT
1: Rp16.695
2.502In Stock
2.990Expected 25/09/2026

Mfr. Part No.
BG125-10-A-1-1-0440-N-D

Mouser Part No
640-BG12510A110440ND

GCT

Board to Board & Mezzanine Connectors 10w, 2.54mm Pitch Socket, SIL, SMT, Vert, D/Ent,R1, GF, Tube

Learn More

Datasheet

2.502In Stock

2.990Expected 25/09/2026

Rp16.695

Rp14.236

Rp13.668

Rp12.787

View

Min.: 1
Mult.: 1

Sockets

10 Position

2.54 mm (0.1 in)

1 Row

Solder

Straight

3 A

- 40 C

+ 105 C

Gold

Phosphor Bronze

Nylon

BG125

Tube

Board to Board & Mezzanine Connectors 2w, 2.54mm Pth Socket, SIL, SMT, Horiz, GF, LCP Natural, T+R

BG300-02-A-L-A
GCT
1: Rp9.356
4.240In Stock

Mfr. Part No.
BG300-02-A-L-A

Mouser Part No
640-BG300-02-A-L-A

GCT

Board to Board & Mezzanine Connectors 2w, 2.54mm Pth Socket, SIL, SMT, Horiz, GF, LCP Natural, T+R

Learn More

Datasheet

4.240In Stock

Cut Tape

Rp9.356

Rp8.201

Rp7.504

Rp6.770

Reel

Rp5.210

View

Min.: 1
Mult.: 1

: 1.400

Sockets

2 Position

2.54 mm (0.1 in)

1 Row

Solder

Horizontal

3 A

- 40 C

+ 105 C

Gold

Copper Alloy

Liquid Crystal Polymer (LCP)

BG300

Reel, Cut Tape

Board to Board & Mezzanine Connectors 3w, 2.54mm Pth Socket, SIL, SMT, Horiz, GF, LCP Natural, T+R

BG300-03-A-L-A
GCT
1: Rp10.641
2.220In Stock

Mfr. Part No.
BG300-03-A-L-A

Mouser Part No
640-BG300-03-A-L-A

GCT

Board to Board & Mezzanine Connectors 3w, 2.54mm Pth Socket, SIL, SMT, Horiz, GF, LCP Natural, T+R

Learn More

Datasheet

2.220In Stock

Cut Tape

Rp10.641

Rp9.393

Rp8.586

Rp7.742

Reel

Rp5.962

View

Min.: 1
Mult.: 1

: 1.400

Sockets

3 Position

2.54 mm (0.1 in)

1 Row

Solder

Horizontal

3 A

- 40 C

+ 105 C

Gold

Copper Alloy

Liquid Crystal Polymer (LCP)

BG300

Reel, Cut Tape

Board to Board & Mezzanine Connectors 6w, 2.54mm Pth Socket, SIL, SMT, Horiz, GF, LCP Natural, T+R

BG300-06-A-L-A
GCT
1: Rp17.612
1.391In Stock
4.200Expected 25/09/2026

Mfr. Part No.
BG300-06-A-L-A

Mouser Part No
640-BG300-06-A-L-A

GCT

Board to Board & Mezzanine Connectors 6w, 2.54mm Pth Socket, SIL, SMT, Horiz, GF, LCP Natural, T+R

Learn More

Datasheet

1.391In Stock

4.200Expected 25/09/2026

Cut Tape

Rp17.612

Rp14.970

Rp14.365

Rp13.448

Reel

Rp10.017

View

Min.: 1
Mult.: 1

: 1.400

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)

BG300

Reel, Cut Tape

Board to Board & Mezzanine Connectors 2w, 2.54mm Pth Header, SIL, SMT, Horiz, GF, LCP Natural, T+R+C

BG301-02-A-0540-L-B
GCT
1: Rp9.907
3.000In Stock

Mfr. Part No.
BG301-02-A-0540-L-B

Mouser Part No
640-BG30102A0540LB

GCT

Board to Board & Mezzanine Connectors 2w, 2.54mm Pth Header, SIL, SMT, Horiz, GF, LCP Natural, T+R+C

Learn More

Datasheet

3.000In Stock

Cut Tape

Rp9.907

Rp8.586

Rp7.852

Rp7.082

Reel

Rp5.430

View

Min.: 1
Mult.: 1

: 1.000

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)

BG301

Reel, Cut Tape

2.54mm B2B SIL Headers & Sockets

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