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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Image	Part #	Mfr.	Description	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	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
Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket SS4-50-3.50-L-D-K-TR Samtec 1: $5.21 3,168In Stock	Mfr. Part No. SS4-50-3.50-L-D-K-TR Mouser Part No 200-SS4503.50LDKTR	Samtec	Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket Learn More about Samtec ss4 st4 connectors	3,168In Stock	Cut Tape $5.21 $4.24 $4.04 $3.84 $3.61 Reel $3.58 MouseReel Available	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
Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header ST4-20-1.50-L-D-P-TR Samtec 1: $3.95 776In Stock	Mfr. Part No. ST4-20-1.50-L-D-P-TR Mouser Part No 200-ST4201.50LDPTR	Samtec	Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header Learn More about Samtec ss4 st4 connectors	776In Stock	Cut Tape $3.95 $3.38 $3.26 $3.04 View Reel $2.15 $2.78 $2.64 $2.15 MouseReel Available	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
Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header ST4-50-2.50-L-D-P-TR Samtec 1: $5.47 739In Stock	Mfr. Part No. ST4-50-2.50-L-D-P-TR Mouser Part No 200-ST4502.50LDPTR	Samtec	Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header Learn More about Samtec ss4 st4 connectors	739In Stock	Cut Tape $5.47 $4.83 $4.63 $4.29 $3.79 Reel $3.62 MouseReel Available	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
Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM SS4-10-3.50-L-D-K-TR Samtec 1: $2.30 10,738In Stock 7,175Expected 2026/11/02	Mfr. Part No. SS4-10-3.50-L-D-K-TR Mouser Part No 200-SS4103.50LDKTR	Samtec	Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM Learn More about Samtec ss4 st4 connectors	10,738In Stock 7,175Expected 2026/11/02	Cut Tape $2.30 $2.19 $2.05 $2.04 Reel $1.95 View $1.77 Quote MouseReel Available	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
Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM SKT SS4-20-3.00-L-D-K-TR Samtec 1: $3.84 6,055In Stock	Mfr. Part No. SS4-20-3.00-L-D-K-TR Mouser Part No 200-SS4203.00LDKTR	Samtec	Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM SKT Learn More about Samtec ss4 st4 connectors	6,055In Stock	Cut Tape $3.84 $3.07 $2.92 $2.78 Reel $2.36 View $2.58 $2.36 $2.20 MouseReel Available	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
Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM SCKT SS4-30-3.00-L-D-K-TR Samtec 1: $4.45 11,716In Stock 20,700Expected 2026/11/18	Mfr. Part No. SS4-30-3.00-L-D-K-TR Mouser Part No 200-SS4303.00LDKTR	Samtec	Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM SCKT Learn More about Samtec ss4 st4 connectors	11,716In Stock 20,700Expected 2026/11/18	Cut Tape $4.45 $3.76 $3.61 $3.36 Reel $2.58 View $3.11 $2.85 $2.40 MouseReel Available	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
Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket SS4-30-3.50-L-D-K-TR Samtec 1: $4.02 7,513In Stock	Mfr. Part No. SS4-30-3.50-L-D-K-TR Mouser Part No 200-SS4303.50LDKTR	Samtec	Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket Learn More about Samtec ss4 st4 connectors	7,513In Stock	Cut Tape $4.02 $3.21 $3.06 $2.92 Reel $2.92 $2.67 MouseReel Available	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
Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM HDR ST4-30-1.00-L-D-P-TR Samtec 1: $4.63 11,646In Stock	Mfr. Part No. ST4-30-1.00-L-D-P-TR Mouser Part No 200-ST4301.00LDPTR	Samtec	Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM HDR Learn More about Samtec ss4 st4 connectors	11,646In Stock	Cut Tape $4.63 $3.70 $3.29 $3.15 View Reel $2.61 $2.99 $2.90 $2.61 MouseReel Available	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
Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM HDR ST4-50-1.00-L-D-P-TR Samtec 1: $5.52 3,699In 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 about Samtec ss4 st4 connectors	3,699In Stock	Cut Tape $5.52 $4.93 $4.57 $4.36 Reel $3.88 View $4.11 $4.02 $3.57 Quote 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)	28 Gbps	ST4	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM SS4-10-3.00-L-D-K-TR Samtec 1: $2.14 3,795In Stock	Mfr. Part No. SS4-10-3.00-L-D-K-TR Mouser Part No 200-SS4103.00LDKTR	Samtec	Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM Learn More about Samtec ss4 st4 connectors	3,795In Stock	Cut Tape $2.14 $2.08 Reel $2.08 $1.91 Quote Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,150	Sockets	20 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
Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM SCKT SS4-15-3.00-L-D-K-TR Samtec 1: $2.49 1,319In Stock	Mfr. Part No. SS4-15-3.00-L-D-K-TR Mouser Part No 200-SS4153.00LDKTR	Samtec	Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM SCKT Learn More about Samtec ss4 st4 connectors	1,319In Stock	Cut Tape $2.49 $2.41 $2.40 $2.19 Reel $2.06 View $1.90 Quote	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
Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket SS4-20-3.50-L-D-K-TR Samtec 1: $3.72 1,055In Stock 2,050Expected 2026/10/26	Mfr. Part No. SS4-20-3.50-L-D-K-TR Mouser Part No 200-SS4203.50LDKTR	Samtec	Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket Learn More about Samtec ss4 st4 connectors	1,055In Stock 2,050Expected 2026/10/26	Cut Tape $3.72 $3.06 $2.91 $2.77 Reel $2.37 View $2.57 $2.37 $2.17 MouseReel Available	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
Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket SS4-40-3.00-L-D-K-TR Samtec 1: $4.95 1,785In Stock 1,225On Order	Mfr. Part No. SS4-40-3.00-L-D-K-TR Mouser Part No 200-SS4403.00LDKTR	Samtec	Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket Learn More about Samtec ss4 st4 connectors	1,785In Stock 1,225On Order	Cut Tape $4.95 $3.95 $3.76 $3.58 View Reel $3.45 $3.45 $3.45 Quote MouseReel Available	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
Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM SCKT SS4-40-3.50-L-D-K-TR Samtec 1: $4.97 1,929In Stock 1,600Expected 2026/11/02	Mfr. Part No. SS4-40-3.50-L-D-K-TR Mouser Part No 200-SS4403.50LDKTR	Samtec	Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM SCKT Learn More about Samtec ss4 st4 connectors	1,929In Stock 1,600Expected 2026/11/02	Cut Tape $4.97 $4.37 $4.05 $3.90 Reel $3.77 View $3.77 $3.47 Quote MouseReel Available	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
Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket SS4-50-3.00-L-D-K-TR Samtec 1: $5.26 2,702In Stock	Mfr. Part No. SS4-50-3.00-L-D-K-TR Mouser Part No 200-SS4503.00LDKTR	Samtec	Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Socket Learn More about Samtec ss4 st4 connectors	2,702In Stock	Cut Tape $5.26 $4.26 $3.97 $3.94 Reel $3.94 View $3.62 Quote MouseReel Available	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
Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM HDR ST4-10-1.00-L-D-P-TR Samtec 1: $2.52 5,809In Stock	Mfr. Part No. ST4-10-1.00-L-D-P-TR Mouser Part No 200-ST4101.00LDPTR	Samtec	Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM HDR Learn More about Samtec ss4 st4 connectors	5,809In Stock	Cut Tape $2.52 $2.49 $2.33 $2.20 Reel $2.06 View $1.90 Quote MouseReel Available	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
Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM HDR ST4-10-1.50-L-D-P-TR Samtec 1: $2.65 830In Stock 4,100On Order	Mfr. Part No. ST4-10-1.50-L-D-P-TR Mouser Part No 200-ST4101.50LDPTR	Samtec	Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM HDR Learn More about Samtec ss4 st4 connectors	830In Stock 4,100On Order On Order Ship Dates Mfr. No: ST4-10-1.50-L-D-P-TR Stock: 830 Can Dispatch Immediately On Order: 1,025 Expected 2026/11/30 3,075 Expected 2026/12/07 Factory Lead Time: 3 Weeks	Cut Tape $2.65 $2.54 $2.36 $2.19 Reel $2.08 View $1.92 Quote	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
Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header ST4-10-2.50-L-D-P-TR Samtec 1: $2.48 1,575In Stock 1,700Expected 2026/10/19	Mfr. Part No. ST4-10-2.50-L-D-P-TR Mouser Part No 200-ST4102.50LDPTR	Samtec	Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header Learn More about Samtec ss4 st4 connectors	1,575In Stock 1,700Expected 2026/10/19	Cut Tape $2.48 $2.36 $2.26 Reel $2.26 $2.09 $2.05 MouseReel Available	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
Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header ST4-15-1.00-L-D-P-TR Samtec 1: $2.61 1,754In Stock 2,250Expected 2026/11/02	Mfr. Part No. ST4-15-1.00-L-D-P-TR Mouser Part No 200-ST4151.00LDPTR	Samtec	Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header Learn More about Samtec ss4 st4 connectors	1,754In Stock 2,250Expected 2026/11/02	Cut Tape $2.61 $2.48 $2.33 $2.21 Reel $2.20 View $2.09 $1.88 Quote MouseReel Available	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
Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header ST4-15-1.50-L-D-P-TR Samtec 1: $2.61 785In Stock	Mfr. Part No. ST4-15-1.50-L-D-P-TR Mouser Part No 200-ST4151.50LDPTR	Samtec	Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header Learn More about Samtec ss4 st4 connectors	785In Stock	Cut Tape $2.61 $2.49 $2.33 $2.17 Reel $2.06	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
Board to Board & Mezzanine Connectors 0.40MM MICRO FINE PITCH HDR ST4-20-1.00-L-D-P-TR Samtec 1: $3.48 5,279In Stock	Mfr. Part No. ST4-20-1.00-L-D-P-TR Mouser Part No 200-ST4201.00LDPTR	Samtec	Board to Board & Mezzanine Connectors 0.40MM MICRO FINE PITCH HDR Learn More about Samtec ss4 st4 connectors	5,279In Stock	Cut Tape $3.48 $2.84 $2.71 $2.58 Reel $2.33 View $2.42 $2.33 $2.13 MouseReel Available	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
Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header ST4-20-2.50-L-D-P-TR Samtec 1: $4.00 1,627In Stock	Mfr. Part No. ST4-20-2.50-L-D-P-TR Mouser Part No 200-ST4202.50LDPTR	Samtec	Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header Learn More about Samtec ss4 st4 connectors	1,627In Stock	Cut Tape $4.00 $3.05 $2.88 $2.79 Reel $2.62 View $2.64 $2.62 $2.41 $2.37	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
Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header ST4-30-1.50-L-D-P-TR Samtec 1: $4.71 1,781In Stock 2,050Expected 2026/12/02	Mfr. Part No. ST4-30-1.50-L-D-P-TR Mouser Part No 200-ST4301.50LDPTR	Samtec	Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header Learn More about Samtec ss4 st4 connectors	1,781In Stock 2,050Expected 2026/12/02	Cut Tape $4.71 $3.78 $3.59 $3.41 Reel $2.90 View $3.19 $2.99 $2.71 MouseReel Available	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
Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header ST4-30-2.50-L-D-P-TR Samtec 1: $5.05 2,944In Stock	Mfr. Part No. ST4-30-2.50-L-D-P-TR Mouser Part No 200-ST4302.50LDPTR	Samtec	Board to Board & Mezzanine Connectors 0.40 mm Micro Blade & Beam Ultra Fine Pitch Header Learn More about Samtec ss4 st4 connectors	2,944In Stock	Cut Tape $5.05 $3.74 $3.55 $3.40 Reel $3.22 View $3.23 $3.22 $2.97 $2.92 MouseReel Available	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
Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM HDR ST4-40-1.00-L-D-P-TR Samtec 1: $5.42 701In Stock	Mfr. Part No. ST4-40-1.00-L-D-P-TR Mouser Part No 200-ST4401.00LDPTR	Samtec	Board to Board & Mezzanine Connectors 0.40MM MICRO BLADE & BEAM HDR Learn More about Samtec ss4 st4 connectors	701In Stock	Cut Tape $5.42 $4.35 $4.15 $3.95 View Reel $3.40 $3.70 $3.63 $3.40 Quote MouseReel Available	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

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