Board to Board & Mezzanine Connectors

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SS4/ST4 0.40mm Ultra-Fine-Pitch Connectors

Samtec SS4 / ST4 0.40mm Ultra-Fine-Pitch Connectors deliver up to 28Gbps performance and are available with up to 100 I/Os and stack heights ranging from 4mm to 6mm. These slim-footprint connectors are designed for board-to-board connections where space is at a premium. The connectors are manufactured on an ultra-fine 0.40mm pitch and come in a vertical configuration. These Razor Beam™ LP family connectors are engineered to save space on the X, Y, and Z axes. The SS4 sockets mate with the ST4 headers and vice-versa. Samtec SS4 / ST4 0.40mm Ultra-Fine-Pitch Connectors operate in a -55°C to +125°C temperature range and are ideal for applications such as 5G networking, test connectivity, artificial intelligence (AI) and machine learning, broadcast videos, medical, and more.

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Part #

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header

ST4-40-2.50-L-D-P-TR
Samtec
1: ₹459.38
1,275In Stock

Mfr. Part No.
ST4-40-2.50-L-D-P-TR

Mouser Part No
200-ST4402.50LDPTR

Samtec

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header

Learn More

1,275In Stock

Cut Tape

₹459.38

₹414.65

₹389.49

₹369.92

Reel

₹355.02

View

MouseReel Available

Min.: 1
Mult.: 1

: 850

Headers

80 Position

0.4 mm (0.016 in)

2 Row

Solder

Vertical

5.5 mm, 6 mm

1.6 A

155 VAC

28 Gbps

- 55 C

+ 125 C

Gold

Phosphor Bronze

Liquid Crystal Polymer (LCP)

ST4

Reel, Cut Tape, MouseReel

Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM HDR

ST4-50-1.00-L-D-P-TR
Samtec
1: ₹514.35
2,494In Stock

Mfr. Part No.
ST4-50-1.00-L-D-P-TR

Mouser Part No
200-ST4501.00LDPTR

Samtec

Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM HDR

Learn More

2,494In Stock

Cut Tape

₹514.35

₹459.38

₹427.70

₹407.20

Reel

₹361.54

View

MouseReel Available

Min.: 1
Mult.: 1

: 925

Headers

100 Position

0.4 mm (0.016 in)

2 Row

Solder

Vertical

4 mm, 4.5 mm

1.6 A

155 VAC

28 Gbps

- 55 C

+ 125 C

Gold

Phosphor Bronze

Liquid Crystal Polymer (LCP)

ST4

Reel, Cut Tape, MouseReel

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket

SS4-15-3.50-L-D-K-TR
Samtec
1: ₹235.75
248In Stock

Mfr. Part No.
SS4-15-3.50-L-D-K-TR

Mouser Part No
200-SS415350LDKTR

Samtec

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket

Learn More

248In Stock

Cut Tape

₹235.75

₹231.09

₹214.31

₹192.88

Reel

₹183.56

View

Min.: 1
Mult.: 1

: 1,000

Sockets

30 Position

0.4 mm (0.016 in)

2 Row

Solder

Vertical

4.5 mm, 5 mm, 6 mm

1.6 A

155 VAC

28 Gbps

- 55 C

+ 125 C

Gold

Phosphor Bronze

Liquid Crystal Polymer (LCP)

SS4

Reel, Cut Tape

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header

ST4-50-1.50-L-D-P-TR
Samtec
1: ₹515.29
34In Stock
1,700Expected 28-09-2026

Mfr. Part No.
ST4-50-1.50-L-D-P-TR

Mouser Part No
200-ST4501.50LDPTR

Samtec

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header

Learn More

34In Stock

1,700Expected 28-09-2026

Cut Tape

₹515.29

₹462.17

₹388.56

₹373.65

Reel

₹363.40

View

MouseReel Available

Min.: 1
Mult.: 1

: 850

Headers

100 Position

0.4 mm (0.016 in)

2 Row

Solder

Vertical

4.5 mm, 5 mm

1.6 A

155 VAC

28 Gbps

- 55 C

+ 125 C

Gold

Phosphor Bronze

Liquid Crystal Polymer (LCP)

ST4

Reel, Cut Tape, MouseReel

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket

SS4-10-3.00-L-D-K-FR
Samtec
1,150: ₹193.81
Non-Stocked Lead-Time 5 Weeks

Mfr. Part No.
SS4-10-3.00-L-D-K-FR

Mouser Part No
200-SS4103.00LDKFR

Samtec

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket

Non-Stocked Lead-Time 5 Weeks

Reel

₹193.81

₹178.91

View

Min.: 1,150
Mult.: 1,150

: 1,150

SS4

Reel

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket

SS4-10-3.50-L-D-K-FR
Samtec
1,025: ₹201.27
Non-Stocked Lead-Time 3 Weeks

Mfr. Part No.
SS4-10-3.50-L-D-K-FR

Mouser Part No
200-SS4103.50LDKFR

Samtec

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket

Non-Stocked Lead-Time 3 Weeks

Reel

₹201.27

₹200.34

View

Min.: 1,025
Mult.: 1,025

: 1,025

SS4

Reel

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket

SS4-15-3.00-L-D-K-FR
Samtec
1,150: ₹195.68
Non-Stocked Lead-Time 3 Weeks

Mfr. Part No.
SS4-15-3.00-L-D-K-FR

Mouser Part No
200-SS4153.00LDKFR

Samtec

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket

Non-Stocked Lead-Time 3 Weeks

Reel

₹195.68

₹194.75

₹191.95

Quote

Min.: 1,150
Mult.: 1,150

: 1,150

SS4

Reel

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket

SS4-15-3.50-L-D-K-FR
Samtec
1,000: ₹199.41
Non-Stocked Lead-Time 2 Weeks

Mfr. Part No.
SS4-15-3.50-L-D-K-FR

Mouser Part No
200-SS4153.50LDKFR

Samtec

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket

Non-Stocked Lead-Time 2 Weeks

Reel

₹199.41

₹198.47

₹191.95

Quote

Min.: 1,000
Mult.: 1,000

: 1,000

SS4

Reel

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket

SS4-20-3.00-L-D-K-FR
Samtec
1,150: ₹220.84
Non-Stocked Lead-Time 4 Weeks

Mfr. Part No.
SS4-20-3.00-L-D-K-FR

Mouser Part No
200-SS4203.00LDKFR

Samtec

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket

Non-Stocked Lead-Time 4 Weeks

Reel

₹220.84

Quote

Min.: 1,150
Mult.: 1,150

: 1,150

SS4

Reel

Board to Board & Mezzanine Connectors

SS4-20-3.00-L-D-L-K-TR
Samtec
850: ₹274.88
Non-Stocked Lead-Time 4 Weeks
New Product

Mfr. Part No.
SS4-20-3.00-L-D-L-K-TR

Mouser Part No
200-SS4203.00LDLKTR

New Product

Samtec

Board to Board & Mezzanine Connectors

Datasheet

Non-Stocked Lead-Time 4 Weeks

Reel

₹274.88

₹261.84

₹223.63

Quote

Min.: 850
Mult.: 850

: 850

SS4

Reel

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket

SS4-20-3.50-L-D-K-FR
Samtec
1,025: ₹220.84
Non-Stocked Lead-Time 6 Weeks

Mfr. Part No.
SS4-20-3.50-L-D-K-FR

Mouser Part No
200-SS4203.50LDKFR

Samtec

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket

Non-Stocked Lead-Time 6 Weeks

Reel

₹220.84

Quote

Min.: 1,025
Mult.: 1,025

: 1,025

SS4

Reel

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket

SS4-30-3.50-L-D-K-FR
Samtec
1,025: ₹273.02
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
SS4-30-3.50-L-D-K-FR

Mouser Part No
200-SS4303.50LDKFR

Samtec

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket

Non-Stocked Lead-Time 10 Weeks

Reel

₹273.02

Quote

Min.: 1,025
Mult.: 1,025

: 1,025

SS4

Reel

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket

SS4-30-3.00-L-D-K-FR
Samtec
1,150: ₹271.15
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
SS4-30-3.00-L-D-K-FR

Mouser Part No
200-SS430300LDKFR

Samtec

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket

Learn More

Non-Stocked Lead-Time 8 Weeks

Reel

₹271.15

View

Min.: 1,150
Mult.: 1,150

: 1,150

SS4

Reel

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket

SS4-40-3.00-L-D-K-FR
Samtec
1,225: ₹322.40
Non-Stocked Lead-Time 2 Weeks

Mfr. Part No.
SS4-40-3.00-L-D-K-FR

Mouser Part No
200-SS4403.00LDKFR

Samtec

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket

Non-Stocked Lead-Time 2 Weeks

Reel

₹322.40

Quote

Min.: 1,225
Mult.: 1,225

: 1,225

SS4

Reel

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket

SS4-40-3.50-L-D-K-FR
Samtec
800: ₹351.29
Non-Stocked Lead-Time 3 Weeks

Mfr. Part No.
SS4-40-3.50-L-D-K-FR

Mouser Part No
200-SS4403.50LDKFR

Samtec

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket

Non-Stocked Lead-Time 3 Weeks

Reel

₹351.29

Quote

Min.: 800
Mult.: 800

: 800

SS4

Reel

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket

SS4-50-3.00-L-D-K-FR
Samtec
675: ₹367.13
Non-Stocked Lead-Time 7 Weeks

Mfr. Part No.
SS4-50-3.00-L-D-K-FR

Mouser Part No
200-SS4503.00LDKFR

Samtec

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket

Non-Stocked Lead-Time 7 Weeks

Reel

₹367.13

Quote

Min.: 675
Mult.: 675

: 675

SS4

Reel

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket

SS4-50-3.50-L-D-K-FR
Samtec
825: ₹367.13
Non-Stocked Lead-Time 7 Weeks

Mfr. Part No.
SS4-50-3.50-L-D-K-FR

Mouser Part No
200-SS4503.50LDKFR

Samtec

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket

Non-Stocked Lead-Time 7 Weeks

Reel

₹367.13

Quote

Min.: 825
Mult.: 825

: 825

SS4

Reel

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header

ST4-10-1.00-L-D-P-FR
Samtec
1,200: ₹191.95
Non-Stocked Lead-Time 7 Weeks

Mfr. Part No.
ST4-10-1.00-L-D-P-FR

Mouser Part No
200-ST4101.00LDPFR

Samtec

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header

Non-Stocked Lead-Time 7 Weeks

Reel

₹191.95

₹177.04

View

Min.: 1,200
Mult.: 1,200

: 1,200

ST4

Reel

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header

ST4-10-1.50-L-D-P-FR
Samtec
1,025: ₹200.34
Non-Stocked Lead-Time 3 Weeks

Mfr. Part No.
ST4-10-1.50-L-D-P-FR

Mouser Part No
200-ST4101.50LDPFR

Samtec

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header

Non-Stocked Lead-Time 3 Weeks

Reel

₹200.34

₹199.41

₹193.81

Quote

Min.: 1,025
Mult.: 1,025

: 1,025

ST4

Reel

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header

ST4-10-2.50-L-D-P-FR
Samtec
850: ₹209.66
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
ST4-10-2.50-L-D-P-FR

Mouser Part No
200-ST4102.50LDPFR

Samtec

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header

Non-Stocked Lead-Time 8 Weeks

Reel

₹209.66

Quote

Min.: 850
Mult.: 850

: 850

ST4

Reel

Board to Board & Mezzanine Connectors

ST4-15-1.00-L-D-L-P-TR
Samtec
850: ₹245.06
Non-Stocked Lead-Time 6 Weeks
New Product

Mfr. Part No.
ST4-15-1.00-L-D-L-P-TR

Mouser Part No
200-ST4151.00LDLPTR

New Product

Samtec

Board to Board & Mezzanine Connectors

Non-Stocked Lead-Time 6 Weeks

Reel

₹245.06

₹231.09

₹198.47

Quote

Min.: 850
Mult.: 850

: 850

ST4

Reel

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header

ST4-15-1.00-L-D-P-FR
Samtec
1,125: ₹193.81
Non-Stocked Lead-Time 4 Weeks

Mfr. Part No.
ST4-15-1.00-L-D-P-FR

Mouser Part No
200-ST4151.00LDPFR

Samtec

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header

Non-Stocked Lead-Time 4 Weeks

Reel

₹193.81

₹192.88

₹191.95

₹189.16

Quote

Min.: 1,125
Mult.: 1,125

: 1,125

ST4

Reel

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header

ST4-15-1.50-L-D-P-FR
Samtec
1,050: ₹197.54
Non-Stocked Lead-Time 4 Weeks

Mfr. Part No.
ST4-15-1.50-L-D-P-FR

Mouser Part No
200-ST4151.50LDPFR

Samtec

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header

Non-Stocked Lead-Time 4 Weeks

Reel

₹197.54

₹196.61

₹191.02

Quote

Min.: 1,050
Mult.: 1,050

: 1,050

ST4

Reel

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header

ST4-20-1.00-L-D-P-FR
Samtec
1,125: ₹218.04
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
ST4-20-1.00-L-D-P-FR

Mouser Part No
200-ST4201.00LDPFR

Samtec

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header

Non-Stocked Lead-Time 10 Weeks

Reel

₹218.04

View

Min.: 1,125
Mult.: 1,125

: 1,125

ST4

Reel

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header

ST4-20-1.50-L-D-P-FR
Samtec
1,025: ₹220.84
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
ST4-20-1.50-L-D-P-FR

Mouser Part No
200-ST4201.50LDPFR

Samtec

Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header

Non-Stocked Lead-Time 10 Weeks

Reel

₹220.84

Quote

Min.: 1,025
Mult.: 1,025

: 1,025

ST4

Reel

SS4/ST4 0.40mm Ultra-Fine-Pitch Connectors

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