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.

Results: 61
Select Image Part # Mfr. Description Datasheet Availability Pricing (CLP) Filter the results in the table by unit price based on your quantity. Qty. RoHS ECAD Model Product Number of Positions Pitch Number of Rows Termination Style Mounting Angle Stack Height Current Rating Voltage Rating Maximum Data Rate Minimum Operating Temperature Maximum Operating Temperature Contact Plating Contact Material Housing Material Data Rate Series Packaging
Samtec Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header 692In Stock
Cut Tape
$6.050
$5.446
$5.206
$4.819
Reel
$3.953
Min.: 1
Mult.: 1
: 700
Headers 100 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) 28 Gbps ST4 Reel, Cut Tape, MouseReel
Samtec Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket 3.099In Stock
Cut Tape
$5.936
$4.831
$4.603
$4.375
Reel
$3.771
Min.: 1
Mult.: 1
: 825
Sockets 100 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) 28 Gbps SS4 Reel, Cut Tape, MouseReel
Samtec Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header 776In Stock
Cut Tape
$4.500
$3.851
$3.748
$3.441
Reel
$2.427
Min.: 1
Mult.: 1
: 1.025
Headers 40 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) 28 Gbps ST4 Reel, Cut Tape, MouseReel
Samtec Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket 7.413In Stock
Cut Tape
$4.580
$3.657
$3.486
$3.327
Reel
$3.327
$3.042
Min.: 1
Mult.: 1
: 1.025
Sockets 60 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) 28 Gbps SS4 Reel, Cut Tape, MouseReel
Samtec Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM HDR 11.515In Stock
Cut Tape
$5.184
$4.215
$3.714
$3.589
Reel
$2.974
Min.: 1
Mult.: 1
: 1.125
Headers 60 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 Liquid Crystal Polymer (LCP) 28 Gbps ST4 Reel, Cut Tape, MouseReel
Samtec SS4-10-3.50-L-D-K-TR
Samtec Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM 16.351In Stock
Cut Tape
$2.620
$2.495
$2.336
$2.313
Reel
$2.222
Min.: 1
Mult.: 1
: 1.025
Sockets 20 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) 28 Gbps SS4 Reel, Cut Tape, MouseReel
Samtec Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM SCKT 1.305In Stock
Cut Tape
$2.837
$2.746
$2.734
$2.495
Reel
$2.347
Min.: 1
Mult.: 1
: 1.150
Sockets 30 Position 0.4 mm (0.016 in) 2 Row Solder Vertical 4 mm, 4.5 mm, 5.5 mm 1.6 A 155 VAC 28 Gbps - 55 C + 125 C Gold Phosphor Bronze Liquid Crystal Polymer (LCP) 28 Gbps SS4 Reel, Cut Tape
Samtec Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM SKT 5.878In Stock
Cut Tape
$4.375
$3.498
$3.327
$3.167
Reel
$2.689
Min.: 1
Mult.: 1
: 1.150
Sockets 40 Position 0.4 mm (0.016 in) 2 Row Solder Vertical 4 mm, 4.5 mm, 5.5 mm 1.6 A 155 VAC 28 Gbps - 55 C + 125 C Gold Phosphor Bronze Liquid Crystal Polymer (LCP) 28 Gbps SS4 Reel, Cut Tape, MouseReel
Samtec Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket 3.093In Stock
Cut Tape
$4.227
$3.486
$3.315
$3.156
Reel
$2.700
Min.: 1
Mult.: 1
: 1.025
Sockets 40 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) 28 Gbps SS4 Reel, Cut Tape, MouseReel
Samtec Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM SCKT 4.385In Stock
20.700Expected 11/16/2026
Cut Tape
$5.150
$4.318
$4.113
$3.908
Reel
$2.939
Min.: 1
Mult.: 1
: 1.150
Sockets 60 Position 0.4 mm (0.016 in) 2 Row Solder Vertical 4 mm, 4.5 mm, 5.5 mm 1.6 A 155 VAC 28 Gbps - 55 C + 125 C Gold Phosphor Bronze Liquid Crystal Polymer (LCP) 28 Gbps SS4 Reel, Cut Tape, MouseReel
Samtec Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket 2.912In Stock
Cut Tape
$5.639
$4.500
$4.284
$4.079
Reel
$3.931
Min.: 1
Mult.: 1
: 1.225
Sockets 80 Position 0.4 mm (0.016 in) 2 Row Solder Vertical 4 mm, 4.5 mm, 5.5 mm 1.6 A 155 VAC 28 Gbps - 55 C + 125 C Gold Phosphor Bronze Liquid Crystal Polymer (LCP) 28 Gbps SS4 Reel, Cut Tape, MouseReel
Samtec Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM SCKT 3.340In Stock
Cut Tape
$5.662
$4.979
$4.614
$4.443
Reel
$4.295
Min.: 1
Mult.: 1
: 800
Sockets 80 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) 28 Gbps SS4 Reel, Cut Tape, MouseReel
Samtec Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket 1.060In Stock
1.350Expected 11/17/2026
Cut Tape
$5.970
$4.853
$4.557
$4.489
Reel
$4.489
Min.: 1
Mult.: 1
: 675
Sockets 100 Position 0.4 mm (0.016 in) 2 Row Solder Vertical 4 mm, 4.5 mm, 5.5 mm 1.6 A 155 VAC 28 Gbps - 55 C + 125 C Gold Phosphor Bronze Liquid Crystal Polymer (LCP) 28 Gbps SS4 Reel, Cut Tape, MouseReel
Samtec Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM HDR 2.604In Stock
Cut Tape
$2.871
$2.837
$2.655
$2.506
Reel
$2.347
Min.: 1
Mult.: 1
: 1.200
Headers 20 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) 28 Gbps ST4 Reel, Cut Tape, MouseReel
Samtec Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM HDR 827In Stock
4.100On Order
Cut Tape
$3.019
$2.882
$2.689
$2.495
Reel
$2.370
Min.: 1
Mult.: 1
: 1.025
Headers 20 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) 28 Gbps ST4 Reel, Cut Tape
Samtec Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header 2.643In Stock
Cut Tape
$2.825
$2.689
$2.563
Reel
$2.563
$2.381
Min.: 1
Mult.: 1
: 850
Headers 20 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) 28 Gbps ST4 Reel, Cut Tape, MouseReel
Samtec Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header 3.990In Stock
Cut Tape
$2.962
$2.825
$2.643
$2.518
Reel
$2.506
Min.: 1
Mult.: 1
: 1.125
Headers 30 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) 28 Gbps ST4 Reel, Cut Tape, MouseReel
Samtec Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header 785In Stock
Cut Tape
$2.974
$2.837
$2.655
$2.484
Reel
$2.347
Min.: 1
Mult.: 1
: 1.050
Headers 30 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) 28 Gbps ST4 Reel, Cut Tape
Samtec Board to Board & Mezzanine Connectors 0.40MM MICRO FINE PITCH HDR 5.267In Stock
Cut Tape
$3.965
$3.236
$3.087
$2.939
Reel
$2.655
Min.: 1
Mult.: 1
: 1.125
Headers 40 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) 28 Gbps ST4 Reel, Cut Tape, MouseReel
Samtec Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header 1.527In Stock
Cut Tape
$4.557
$3.475
$3.281
$3.179
Reel
$2.985
Min.: 1
Mult.: 1
: 850
Headers 40 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) 28 Gbps ST4 Reel, Cut Tape
Samtec Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header 1.717In Stock
2.050Expected 12/2/2026
Cut Tape
$5.389
$4.306
$4.090
$3.885
Reel
$3.304
Min.: 1
Mult.: 1
: 1.025
Headers 60 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) 28 Gbps ST4 Reel, Cut Tape, MouseReel
Samtec Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header 2.699In Stock
Cut Tape
$5.833
$4.113
$3.919
$3.782
Reel
$3.668
Min.: 1
Mult.: 1
: 850
Headers 60 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) 28 Gbps ST4 Reel, Cut Tape, MouseReel
Samtec Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM HDR 635In Stock
1.200Expected 12/7/2026
Cut Tape
$6.175
$4.956
$4.728
$4.500
Reel
$3.862
Min.: 1
Mult.: 1
: 1.200
Headers 80 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) 28 Gbps ST4 Reel, Cut Tape, MouseReel
Samtec Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header 1.940In Stock
Cut Tape
$6.243
$5.036
$4.785
$4.534
Reel
$3.919
Min.: 1
Mult.: 1
: 1.025
Headers 80 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) 28 Gbps ST4 Reel, Cut Tape
Samtec Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header 556In Stock
850Expected 1/4/2027
Cut Tape
$5.776
$5.115
$4.808
$4.568
Reel
$4.341
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) 28 Gbps ST4 Reel, Cut Tape, MouseReel