Board to Board & Mezzanine Connectors

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2mm B2B SIL/DIL Sockets & Headers

GCT 2mm B2B SIL/DIL Sockets & Headers offer a 2A current rating, 20mΩ contact resistance, and 500V_AC dielectric withstanding voltage. These SIL/DIL sockets feature 2mm pitch, a single-row design, straight orientation, and carry 2 to 40 contacts. The BF085 has a top-entry design and through-hole PCB mounting type, while the BF090 is a surface-mount PCB type with dual-entry construction. GCT 2mm B2B SIL Sockets operate in the -40°C to +105°C temperature range.

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Part #

Board to Board & Mezzanine Connectors 10w, 2mm Pitch Socket, SIL, SMT, Dual Ent, Type B1, GF,Tube

BF090-10-A-1-N-D
GCT
1: $1.40
3,089In Stock

Mfr. Part No.
BF090-10-A-1-N-D

Mouser Part No
640-BF09010A1ND

GCT

Board to Board & Mezzanine Connectors 10w, 2mm Pitch Socket, SIL, SMT, Dual Ent, Type B1, GF,Tube

Learn More

Datasheet

3,089In Stock

$1.40

$1.29

$1.11

$1.00

View

Min.: 1
Mult.: 1

Headers

10 Position

2 mm (0.079 in)

1 Row

Solder

Vertical

2 A

- 40 C

+ 105 C

Gold

Copper Alloy

Nylon

BF090

Tube

Board to Board & Mezzanine Connectors 20w, 2mm Pitch Pin Hdr, DIL, SMT, Horiz, GF, T+R+F

BF135-20-A-0400-0700-0400-L-C
GCT
1: $1.32
3,680In Stock

Mfr. Part No.
BF135-20-A-0400-0700-0400-L-C

Mouser Part No
640-BF13520A040704LC

GCT

Board to Board & Mezzanine Connectors 20w, 2mm Pitch Pin Hdr, DIL, SMT, Horiz, GF, T+R+F

Learn More

Datasheet

3,680In Stock

Cut Tape

$1.32

$1.12

$1.10

$0.951

Reel

$0.762

View

Min.: 1
Mult.: 1

Reel: 750

BF135

Reel, Cut Tape

Board to Board & Mezzanine Connectors 10w, 2mm Pitch Pin Hdr, DIL, SMT, Vert, W/Peg, GF, T+R+C

BF030-10A-B1-0600-0277-0600-LB
GCT
1: $0.695
3,150In Stock

Mfr. Part No.
BF030-10A-B1-0600-0277-0600-LB

Mouser Part No
640-BF03010AB10602LB

GCT

Board to Board & Mezzanine Connectors 10w, 2mm Pitch Pin Hdr, DIL, SMT, Vert, W/Peg, GF, T+R+C

Learn More

Datasheet

3,150In Stock

Cut Tape

$0.695

$0.56

$0.457

$0.40

Reel

$0.375

View

Min.: 1
Mult.: 1

Reel: 450

BF030

Reel, Cut Tape

Board to Board & Mezzanine Connectors 8w, 2mm Pitch Pin Hdr, DIL, SMT, Vert, No Peg, GF, T+R+C

BF030-08A-B0-0600-0277-0600-LB
GCT
1: $0.653
3,140In Stock

Mfr. Part No.
BF030-08A-B0-0600-0277-0600-LB

Mouser Part No
640-BF038AB6027706LB

GCT

Board to Board & Mezzanine Connectors 8w, 2mm Pitch Pin Hdr, DIL, SMT, Vert, No Peg, GF, T+R+C

Learn More

Datasheet

3,140In Stock

Cut Tape

$0.653

$0.531

$0.434

$0.379

Reel

$0.356

View

Min.: 1
Mult.: 1

Reel: 450

BF030

Reel, Cut Tape

Board to Board & Mezzanine Connectors 10w, 2mm Pitch Pin Hdr, DIL, TH, Vert, GF, Box

BF050-10-A-B-0600-0300-L-G
GCT
1: $0.389
453In Stock

Mfr. Part No.
BF050-10-A-B-0600-0300-L-G

Mouser Part No
640-BF05010AB0603LG

GCT

Board to Board & Mezzanine Connectors 10w, 2mm Pitch Pin Hdr, DIL, TH, Vert, GF, Box

Learn More

Datasheet

453In Stock

$0.389

$0.317

$0.207

$0.171

Min.: 1
Mult.: 1

10 Position

2 mm (0.079 in)

2 Row

Solder

Straight

2 A

- 40 C

+ 105 C

Gold

Copper Alloy

Liquid Crystal Polymer (LCP)

BF050

Bulk

Board to Board & Mezzanine Connectors 14w, 2mm Pitch Pin Hdr, DIL, TH, Vert, GF, Box

BF050-14-A-B-0200-0300-L-G
GCT
1: $0.445
2,990In Stock

Mfr. Part No.
BF050-14-A-B-0200-0300-L-G

Mouser Part No
640-BF05014AB0203LG

GCT

Board to Board & Mezzanine Connectors 14w, 2mm Pitch Pin Hdr, DIL, TH, Vert, GF, Box

Learn More

Datasheet

2,990In Stock

$0.445

$0.379

$0.307

$0.284

View

Min.: 1
Mult.: 1

BF050

Bulk

Board to Board & Mezzanine Connectors 20w, 2mm Pitch Pin Hdr, DIL, TH, Vert, GF, Box

BF050-20-A-B-0600-0300-L-G
GCT
1: $0.556
911In Stock

Mfr. Part No.
BF050-20-A-B-0600-0300-L-G

Mouser Part No
640-BF05020AB0603LG

GCT

Board to Board & Mezzanine Connectors 20w, 2mm Pitch Pin Hdr, DIL, TH, Vert, GF, Box

Learn More

Datasheet

911In Stock

$0.556

$0.455

$0.349

$0.316

View

Min.: 1
Mult.: 1

20 Position

2 mm (0.079 in)

2 Row

Solder

Straight

2 A

- 40 C

+ 105 C

Gold

Copper Alloy

Liquid Crystal Polymer (LCP)

BF050

Bulk

Board to Board & Mezzanine Connectors 4w, 2mm Pitch Pin Hdr, DIL, TH, Vert, GF, Box

BF050-04-A-B-0400-0300-L-G
GCT
1: $0.209
2,925In Stock

Mfr. Part No.
BF050-04-A-B-0400-0300-L-G

Mouser Part No
640-BF054AB0403LG

GCT

Board to Board & Mezzanine Connectors 4w, 2mm Pitch Pin Hdr, DIL, TH, Vert, GF, Box

Learn More

Datasheet

2,925In Stock

$0.209

$0.182

$0.156

$0.139

View

Min.: 1
Mult.: 1

BF050

Bulk

Board to Board & Mezzanine Connectors 6w, 2mm Pitch Pin Hdr, DIL, TH, Vert, GF, Box

BF050-06-A-B-0400-0300-L-G
GCT
1: $0.278
2,487In Stock

Mfr. Part No.
BF050-06-A-B-0400-0300-L-G

Mouser Part No
640-BF056AB0403LG

GCT

Board to Board & Mezzanine Connectors 6w, 2mm Pitch Pin Hdr, DIL, TH, Vert, GF, Box

Learn More

Datasheet

2,487In Stock

$0.278

$0.224

$0.182

$0.158

View

Min.: 1
Mult.: 1

6 Position

2 mm (0.079 in)

2 Row

Solder

Straight

2 A

- 40 C

+ 105 C

Gold

Copper Alloy

Liquid Crystal Polymer (LCP)

BF050

Bulk

Board to Board & Mezzanine Connectors 6w, 2mm Pitch Pin Hdr, DIL, TH, Vert, GF, Box

BF050-06-A-B-0600-0300-L-G
GCT
1: $0.292
4,017In Stock

Mfr. Part No.
BF050-06-A-B-0600-0300-L-G

Mouser Part No
640-BF056AB0603LG

GCT

Board to Board & Mezzanine Connectors 6w, 2mm Pitch Pin Hdr, DIL, TH, Vert, GF, Box

Learn More

Datasheet

4,017In Stock

$0.292

$0.236

$0.193

$0.167

View

Min.: 1
Mult.: 1

BF050

Bulk

Board to Board & Mezzanine Connectors 8w, 2mm Pitch Pin Hdr, DIL, TH, Vert, GF, Box

BF050-08-A-B-0600-0300-L-G
GCT
1: $0.334
2,647In Stock

Mfr. Part No.
BF050-08-A-B-0600-0300-L-G

Mouser Part No
640-BF058AB0603LG

GCT

Board to Board & Mezzanine Connectors 8w, 2mm Pitch Pin Hdr, DIL, TH, Vert, GF, Box

Learn More

Datasheet

2,647In Stock

$0.334

$0.289

$0.279

$0.25

View

Min.: 1
Mult.: 1

BF050

Bulk

Board to Board & Mezzanine Connectors 12w, 2mm Pitch Pin Hdr, DIL, TH, Horiz, GF, Tube

BF060-12A-B-0200-0280-0305-L-D
GCT
1: $0.598
3,000In Stock

Mfr. Part No.
BF060-12A-B-0200-0280-0305-L-D

Mouser Part No
640-BF06012AB020LD

GCT

Board to Board & Mezzanine Connectors 12w, 2mm Pitch Pin Hdr, DIL, TH, Horiz, GF, Tube

Learn More

Datasheet

3,000In Stock

$0.598

$0.588

$0.423

$0.396

View

Min.: 1
Mult.: 1

BF060

Tube

Board to Board & Mezzanine Connectors 14w, 2mm Pitch Pin Hdr, DIL, TH, Horiz, GF, Tube

BF060-14A-B-0400-0280-0305-L-D
GCT
1: $0.681
2,990In Stock

Mfr. Part No.
BF060-14A-B-0400-0280-0305-L-D

Mouser Part No
640-BF06014AB040LD

GCT

Board to Board & Mezzanine Connectors 14w, 2mm Pitch Pin Hdr, DIL, TH, Horiz, GF, Tube

Learn More

Datasheet

2,990In Stock

$0.681

$0.594

$0.543

$0.491

View

Min.: 1
Mult.: 1

BF060

Tube

Board to Board & Mezzanine Connectors 4w, 2mm Pitch Pin Hdr, DIL, TH, Horiz, GF, Tube

BF060-04A-B-0400-0280-0305-L-D
GCT
1: $0.32
3,050In Stock

Mfr. Part No.
BF060-04A-B-0400-0280-0305-L-D

Mouser Part No
640-BF064AB040LD

GCT

Board to Board & Mezzanine Connectors 4w, 2mm Pitch Pin Hdr, DIL, TH, Horiz, GF, Tube

Learn More

Datasheet

3,050In Stock

$0.32

$0.277

$0.228

$0.206

View

Min.: 1
Mult.: 1

BF060

Tube

Board to Board & Mezzanine Connectors 20w, 2mm Pitch Socket, DIL, SMT, Vert, W/Peg, GF, T+R+F

BF080-20-A-1-L-C
GCT
1: $1.57
1,420In Stock

Mfr. Part No.
BF080-20-A-1-L-C

Mouser Part No
640-BF08020A1LC

GCT

Board to Board & Mezzanine Connectors 20w, 2mm Pitch Socket, DIL, SMT, Vert, W/Peg, GF, T+R+F

Learn More

Datasheet

1,420In Stock

Cut Tape

$1.57

$1.27

$1.04

$0.901

Reel

$0.847

View

Min.: 1
Mult.: 1

Reel: 1,000

BF080

Reel, Cut Tape

Board to Board & Mezzanine Connectors 10w, 2mm Pitch Socket, SIL, TH, Vert, GF, Tube

BF085-10-A-0240-N-D
GCT
1: $1.38
2,176In Stock

Mfr. Part No.
BF085-10-A-0240-N-D

Mouser Part No
640-BF08510A0240ND

GCT

Board to Board & Mezzanine Connectors 10w, 2mm Pitch Socket, SIL, TH, Vert, GF, Tube

Learn More

Datasheet

2,176In Stock

$1.38

$1.36

$1.33

$1.03

View

Min.: 1
Mult.: 1

Headers

10 Position

2 mm (0.079 in)

1 Row

Solder

Straight

2 A

- 40 C

+ 105 C

Gold

Phosphor Bronze

Nylon

BF085

Tube

Board to Board & Mezzanine Connectors 4w, 2mm Pitch Socket, DIL, SMT, Vert, W/Peg, GF, T+R+F

BF100-04-A-D-1-0640-L-C
GCT
1: $0.612
2,375In Stock

Mfr. Part No.
BF100-04-A-D-1-0640-L-C

Mouser Part No
640-BF104AD10640-LC

GCT

Board to Board & Mezzanine Connectors 4w, 2mm Pitch Socket, DIL, SMT, Vert, W/Peg, GF, T+R+F

Learn More

Datasheet

2,375In Stock

Cut Tape

$0.612

$0.517

$0.439

$0.378

Reel

$0.373

View

Min.: 1
Mult.: 1

Reel: 850

BF100

Reel, Cut Tape

Board to Board & Mezzanine Connectors 4w, 2mm Pitch Socket, DIL, SMT, Vert, No Peg, GF, T+R+F

BF100-04-A-D-0-0640-L-C
GCT
1: $0.612
2,885In Stock

Mfr. Part No.
BF100-04-A-D-0-0640-L-C

Mouser Part No
640-BF104AD640-LC

GCT

Board to Board & Mezzanine Connectors 4w, 2mm Pitch Socket, DIL, SMT, Vert, No Peg, GF, T+R+F

Learn More

Datasheet

2,885In Stock

Cut Tape

$0.612

$0.517

$0.439

$0.378

Reel

$0.359

View

Min.: 1
Mult.: 1

Reel: 850

BF100

Reel, Cut Tape

Board to Board & Mezzanine Connectors 8w, 2mm Pitch Socket, DIL, SMT, Vert, W/Peg, GF, T+R+F

BF100-08-A-D-1-0640-L-C
GCT
1: $0.723
3,714In Stock

Mfr. Part No.
BF100-08-A-D-1-0640-L-C

Mouser Part No
640-BF108AD10640-LC

GCT

Board to Board & Mezzanine Connectors 8w, 2mm Pitch Socket, DIL, SMT, Vert, W/Peg, GF, T+R+F

Learn More

Datasheet

3,714In Stock

Cut Tape

$0.723

$0.584

$0.477

$0.393

Reel

$0.356

View

Min.: 1
Mult.: 1

Reel: 850

BF100

Reel, Cut Tape

Board to Board & Mezzanine Connectors 14w, 2mm Pitch Socket, DIL, SMT, Vert, W/Peg, GF, T+R+F

BF100-14-A-D-1-0640-L-C
GCT
1: $1.08
1,700In Stock

Mfr. Part No.
BF100-14-A-D-1-0640-L-C

Mouser Part No
640-BF114AD10640-LC

GCT

Board to Board & Mezzanine Connectors 14w, 2mm Pitch Socket, DIL, SMT, Vert, W/Peg, GF, T+R+F

Learn More

Datasheet

1,700In Stock

Cut Tape

$1.08

$0.924

$0.785

$0.676

Reel

$0.674

View

Min.: 1
Mult.: 1

Reel: 850

BF100

Reel, Cut Tape

Board to Board & Mezzanine Connectors 20w, 2mm Pitch Socket, DIL, SMT, Vert, W/Peg, GF, T+R+F

BF100-20-A-D-1-0640-L-C
GCT
1: $1.26
1,921In Stock

Mfr. Part No.
BF100-20-A-D-1-0640-L-C

Mouser Part No
640-BF120AD10640-LC

GCT

Board to Board & Mezzanine Connectors 20w, 2mm Pitch Socket, DIL, SMT, Vert, W/Peg, GF, T+R+F

Learn More

Datasheet

1,921In Stock

Cut Tape

$1.26

$1.03

$0.844

$0.698

Reel

$0.655

$0.594

Min.: 1
Mult.: 1

Reel: 850

BF100

Reel, Cut Tape

Board to Board & Mezzanine Connectors 6w, 2mm Socket, DIL, SMT, Vert, D/Ent, No Peg, GF, T+R+F

BF121-06-A-0-L-C
GCT
1: $1.10
2,351In Stock

Mfr. Part No.
BF121-06-A-0-L-C

Mouser Part No
640-BF12106A0LC

GCT

Board to Board & Mezzanine Connectors 6w, 2mm Socket, DIL, SMT, Vert, D/Ent, No Peg, GF, T+R+F

Learn More

Datasheet

2,351In Stock

Cut Tape

$1.10

$0.892

$0.727

$0.631

Reel

$0.53

$0.505

Min.: 1
Mult.: 1

Reel: 1,200

6 Position

2 mm (0.079 in)

2 Row

Solder

Vertical

2 A

- 40 C

+ 105 C

Gold

Copper Alloy

Liquid Crystal Polymer (LCP)

BF121

Reel, Cut Tape

Board to Board & Mezzanine Connectors 10w, 2mm Socket, DIL, SMT, Vert, D/Ent, No Peg, GF, T+R+F

BF121-10-A-0-L-C
GCT
1: $1.17
2,690In Stock
3,000Expected 18/2/2026

Mfr. Part No.
BF121-10-A-0-L-C

Mouser Part No
640-BF12110A0LC

GCT

Board to Board & Mezzanine Connectors 10w, 2mm Socket, DIL, SMT, Vert, D/Ent, No Peg, GF, T+R+F

Learn More

Datasheet

2,690In Stock

3,000Expected 18/2/2026

Cut Tape

$1.17

$0.986

$0.972

$0.838

Reel

$0.659

View

Min.: 1
Mult.: 1

Reel: 1,500

BF121

Reel, Cut Tape

Board to Board & Mezzanine Connectors 12w, 2mm Pitch Socket, DIL, SMT, Vert, W/Peg, GF, T+R+F

BF100-12-A-C-1-0625-L-C
GCT
1: $1.29
4,500Expected 18/2/2026

Mfr. Part No.
BF100-12-A-C-1-0625-L-C

Mouser Part No
640-BF112AC10625LC

GCT

Board to Board & Mezzanine Connectors 12w, 2mm Pitch Socket, DIL, SMT, Vert, W/Peg, GF, T+R+F

Learn More

Datasheet

4,500Expected 18/2/2026

Cut Tape

$1.29

$1.09

$1.07

$0.926

Reel

$0.72

View

Min.: 1
Mult.: 1

Reel: 900

BF100

Reel, Cut Tape

Board to Board & Mezzanine Connectors 10w, 2mm Pitch Pin Hdr, DIL, SMT, Vert, W/Peg, GF, T+R+C

BF030-10A-B1-0200-0277-0600-LB
GCT
1: $0.639
3,499Expected 18/2/2026

Mfr. Part No.
BF030-10A-B1-0200-0277-0600-LB

Mouser Part No
640-BF03010AB10202LB

GCT

Board to Board & Mezzanine Connectors 10w, 2mm Pitch Pin Hdr, DIL, SMT, Vert, W/Peg, GF, T+R+C

Learn More

Datasheet

3,499Expected 18/2/2026

Cut Tape

$0.639

$0.548

$0.466

$0.406

Reel

$0.375

View

Min.: 1
Mult.: 1

Reel: 700

BF030

Reel, Cut Tape

2mm B2B SIL/DIL Sockets & Headers

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