Board to Board & Mezzanine Connectors

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Industry 4.0 Solutions

Molex Industry 4.0 Solutions feature a wide range of technologies geared to help revolutionize the industrial automation market. This fourth industrial revolution brings the promise of greater freedom and flexibility for machine builders and line developers to venture beyond current restrictive and proprietary solutions. As global markets expand, industrial automation machine builders appear to be steadily transitioning beyond the limitations of proprietary solutions and wiring in favor of more open platforms. These Molex products are ruggedly designed and engineered to provide infrastructure solutions for harsh-duty manufacturing environments, including automotive, food/beverage, material handling, and commercial vehicles.

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Image	Part #	Mfr.	Description	Datasheet	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	Minimum Operating Temperature	Maximum Operating Temperature	Contact Plating	Contact Material	Housing Material	Series	Packaging
Board to Board & Mezzanine Connectors 40 Ckt Vert. Recept. 0.5mm SMT Dual-Row 52991-0408 Molex 1: $3.81 22,368In Stock	Mfr. Part No. 52991-0408 Mouser Part No 538-52991-0408	Molex	Board to Board & Mezzanine Connectors 40 Ckt Vert. Recept. 0.5mm SMT Dual-Row Learn More about Molex slimstack	Datasheet	22,368In Stock	Cut Tape $3.81 $3.24 $2.90 $2.76 View Reel $2.07 $2.58 $2.47 $2.36 $2.07 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Receptacles	40 Position	0.5 mm (0.02 in)	2 Row	Solder	Vertical	3 mm, 4 mm	500 mA	50 V	- 40 C	+ 105 C	Gold	Copper	Liquid Crystal Polymer (LCP)	52991	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors SlimStack .35mm Conn Rcpt 16Ckt 505066-1622 Molex 1: $0.611 106,911In Stock	Mfr. Part No. 505066-1622 Mouser Part No 538-505066-1622	Molex	Board to Board & Mezzanine Connectors SlimStack .35mm Conn Rcpt 16Ckt Learn More about Molex slimstack	Datasheet	106,911In Stock	Cut Tape $0.611 $0.518 $0.462 $0.44 View Reel $0.286 $0.392 $0.374 $0.35 $0.308 $0.286	Min.: 1 Mult.: 1 : 8,000	Receptacles	16 Position	0.35 mm (0.014 in)	2 Row	Solder	Vertical	0.6 mm	300 mA	50 V	- 40 C	+ 85 C	Gold	Copper	Liquid Crystal Polymer (LCP)	505066	Reel, Cut Tape
Board to Board & Mezzanine Connectors 0.5 BTB STR REC HSG TR REC HSG 529910608 52991-0608 Molex 1: $4.91 6,934In Stock	Mfr. Part No. 52991-0608 Mouser Part No 538-52991-0608	Molex	Board to Board & Mezzanine Connectors 0.5 BTB STR REC HSG TR REC HSG 529910608 Learn More about Molex high speed solutions	Datasheet	6,934In Stock	Cut Tape $4.91 $4.18 $3.91 $3.73 View Reel $2.73 $3.55 $3.33 $3.23 $3.09 $2.73 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Receptacles	60 Position	0.5 mm (0.02 in)	2 Row	Solder	Vertical	3 mm, 4 mm	500 mA	50 V	- 40 C	+ 105 C	Gold	Copper	Liquid Crystal Polymer (LCP)	52991	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors SlimStack .40mm Conn Plug 40Ckt 505551-4020 Molex 1: $1.57 8,563In Stock	Mfr. Part No. 505551-4020 Mouser Part No 538-505551-4020	Molex	Board to Board & Mezzanine Connectors SlimStack .40mm Conn Plug 40Ckt Learn More about Molex slimstack	Datasheet	8,563In Stock	Cut Tape $1.57 $1.34 $1.20 $1.14 View Reel $0.976 $1.07 $1.03 $1.02 $0.976 $0.976	Min.: 1 Mult.: 1 : 7,000	Headers	40 Position	0.4 mm (0.016 in)	2 Row	Solder	Vertical	0.8 mm	300 mA	50 V	- 40 C	+ 85 C	Gold	Copper	Liquid Crystal Polymer (LCP)	505551	Reel, Cut Tape
Board to Board & Mezzanine Connectors SlimStack B/B Rcpt .35mm 6Ckt 505066-0622 Molex 1: $0.35 69,272In Stock	Mfr. Part No. 505066-0622 Mouser Part No 538-505066-0622	Molex	Board to Board & Mezzanine Connectors SlimStack B/B Rcpt .35mm 6Ckt Learn More about Molex slimstack	Datasheet	69,272In Stock	Cut Tape $0.35 $0.297 $0.265 $0.244 View Reel $0.159 $0.219 $0.192 $0.181 $0.165 $0.159 MouseReel Available	Min.: 1 Mult.: 1 : 8,000	Receptacles	6 Position	0.35 mm (0.014 in)	2 Row	Solder	Vertical	0.6 mm	300 mA	50 V	- 40 C	+ 85 C	Gold	Copper	Liquid Crystal Polymer (LCP)	505066	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors SlimStack .40mm Conn Plug 40Ckt 505550-4020 Molex 1: $0.98 11,500In Stock	Mfr. Part No. 505550-4020 Mouser Part No 538-505550-4020	Molex	Board to Board & Mezzanine Connectors SlimStack .40mm Conn Plug 40Ckt Learn More about Molex slimstack	Datasheet	11,500In Stock	Cut Tape $0.98 $0.844 $0.79 $0.754 View Reel $0.521 $0.698 $0.658 $0.611 $0.585 $0.521 MouseReel Available	Min.: 1 Mult.: 1 : 7,000	Receptacles	40 Position	0.4 mm (0.016 in)	2 Row	Solder	Vertical	0.8 mm	300 mA	50 V	- 40 C	+ 85 C	Gold	Copper	Liquid Crystal Polymer (LCP)	505550	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors SlimStack B/B Rcpt .35mm 12Ckt 505066-1222 Molex 1: $0.511 63,403In Stock	Mfr. Part No. 505066-1222 Mouser Part No 538-505066-1222	Molex	Board to Board & Mezzanine Connectors SlimStack B/B Rcpt .35mm 12Ckt Learn More about Molex slimstack	Datasheet	63,403In Stock	Cut Tape $0.511 $0.44 $0.402 $0.363 View Reel $0.236 $0.331 $0.279 $0.262 $0.241 $0.236 MouseReel Available	Min.: 1 Mult.: 1 : 8,000	Receptacles	12 Position	0.35 mm (0.014 in)	2 Row	Solder	Vertical	0.6 mm	300 mA	50 V	- 40 C	+ 85 C	Gold	Copper	Liquid Crystal Polymer (LCP)	505066	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors SlimStack .40mm Conn Plug 34Ckt 505551-3420 Molex 1: $1.42 2,560In Stock	Mfr. Part No. 505551-3420 Mouser Part No 538-505551-3420	Molex	Board to Board & Mezzanine Connectors SlimStack .40mm Conn Plug 34Ckt Learn More about Molex slimstack	Datasheet	2,560In Stock	Cut Tape $1.42 $1.21 $1.08 $1.03 View Reel $0.69 $0.961 $0.914 $0.854 $0.837 $0.69 MouseReel Available	Min.: 1 Mult.: 1 : 7,000	Headers	34 Position	0.4 mm (0.016 in)	2 Row	Solder	Vertical	0.8 mm	300 mA	50 V	- 40 C	+ 85 C	Gold	Copper	Liquid Crystal Polymer (LCP)	505551	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors SlimStack Rcpt .35mm SSB RP 8Ckt 505066-0822 Molex 1: $0.49 51,892In Stock	Mfr. Part No. 505066-0822 Mouser Part No 538-505066-0822	Molex	Board to Board & Mezzanine Connectors SlimStack Rcpt .35mm SSB RP 8Ckt Learn More about Molex slimstack armor	Datasheet	51,892In Stock	Cut Tape $0.49 $0.414 $0.364 $0.322 View Reel $0.18 $0.29 $0.237 $0.222 $0.186 $0.18	Min.: 1 Mult.: 1 : 8,000	Receptacles	8 Position	0.35 mm (0.014 in)	2 Row	Solder	Vertical	0.6 mm	300 mA, 3 A	50 V	- 40 C	+ 85 C	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	505066	Reel, Cut Tape
Board to Board & Mezzanine Connectors SlimStack .35mm Conn Rcpt 10Ckt 505066-1022 Molex 1: $0.42 65,522In Stock	Mfr. Part No. 505066-1022 Mouser Part No 538-505066-1022	Molex	Board to Board & Mezzanine Connectors SlimStack .35mm Conn Rcpt 10Ckt Learn More about Molex slimstack ssb6 connectors	Datasheet	65,522In Stock	Cut Tape $0.42 $0.356 $0.317 $0.304 View Reel $0.211 $0.271 $0.258 $0.242 $0.223 $0.211 MouseReel Available	Min.: 1 Mult.: 1 : 8,000	Receptacles	10 Position	0.35 mm (0.014 in)	2 Row	Solder	Vertical	0.6 mm	300 mA	50 V	- 40 C	+ 85 C	Gold	Copper	Liquid Crystal Polymer (LCP)	505066	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors SlimStack .40mm Plug 16Ckt 505551-1620 Molex 1: $0.99 6,042In Stock	Mfr. Part No. 505551-1620 Mouser Part No 538-505551-1620	Molex	Board to Board & Mezzanine Connectors SlimStack .40mm Plug 16Ckt Learn More about Molex slimstack hybrid	Datasheet	6,042In Stock	Cut Tape $0.99 $0.843 $0.752 $0.716 View Reel $0.52 $0.671 $0.64 $0.607 $0.569 $0.52 MouseReel Available	Min.: 1 Mult.: 1 : 7,000	Plugs	16 Position	0.4 mm (0.016 in)	2 Row	Solder	Vertical	0.8 mm	300 mA	50 V	- 40 C	+ 85 C	Gold		Liquid Crystal Polymer (LCP)	505551	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors SlimStack .35mm Conn Rcpt 54Ckt ArmorNail 505066-5422 Molex 1: $0.88 4,127In Stock	Mfr. Part No. 505066-5422 Mouser Part No 538-505066-5422	Molex	Board to Board & Mezzanine Connectors SlimStack .35mm Conn Rcpt 54Ckt ArmorNail Learn More about Molex slimstack	Datasheet	4,127In Stock	Cut Tape $0.88 $0.751 $0.67 $0.638 View Reel $0.545 $0.598 $0.57 $0.545 $0.545 MouseReel Available	Min.: 1 Mult.: 1 : 8,000	Receptacles	54 Position	0.35 mm (0.014 in)	2 Row	Solder	Vertical	0.6 mm	300 mA	50 V	- 40 C	+ 85 C	Gold	Copper	Liquid Crystal Polymer (LCP)	505066	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors VersaPower Board-to-Board Receptacle, 0.30mm Pitch, 0.60mm Height, 60 Signal Pin + 8 Power Pin + 1 Fitting Nail 226276-0602 Molex 1: $0.88 3,957In Stock New Product	Mfr. Part No. 226276-0602 Mouser Part No 538-226276-0602 New Product	Molex	Board to Board & Mezzanine Connectors VersaPower Board-to-Board Receptacle, 0.30mm Pitch, 0.60mm Height, 60 Signal Pin + 8 Power Pin + 1 Fitting Nail Learn More about Molex versapower connectors	Datasheet	3,957In Stock	Cut Tape $0.88 $0.747 $0.668 $0.635 Reel $0.55 View $0.595 $0.568 $0.509 $0.481	Min.: 1 Mult.: 1 : 1,000	Receptacle	68 Position	0.3 mm, 0.6 mm	2 Row	Solder	Vertical		300 mA, 3 A	50 V	- 40 C	+ 85 C	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	226276	Reel, Cut Tape
Board to Board & Mezzanine Connectors VersaPower Board-to-Board Plug, 0.30mm Pitch, 0.60mm Height, 60 Signal Pin + 8 Power Pin + 1 Fitting Nail 226277-0602 Molex 1: $0.88 3,999In Stock 8,000Expected 2026/11/19 New Product	Mfr. Part No. 226277-0602 Mouser Part No 538-226277-0602 New Product	Molex	Board to Board & Mezzanine Connectors VersaPower Board-to-Board Plug, 0.30mm Pitch, 0.60mm Height, 60 Signal Pin + 8 Power Pin + 1 Fitting Nail Learn More about Molex versapower connectors	Datasheet	3,999In Stock 8,000Expected 2026/11/19	Cut Tape $0.88 $0.747 $0.668 $0.635 Reel $0.55 View $0.595 $0.568 $0.509 $0.481	Min.: 1 Mult.: 1 : 1,000	Plug	68 Position	0.3 mm, 0.6 mm	2 Row	Solder	Vertical		300 mA, 3 A	50 V	- 40 C	+ 85 C	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	226277	Reel, Cut Tape
Board to Board & Mezzanine Connectors SlimStack .4mm Conn Plug 10Ckt 505551-1020 Molex 1: $0.911 38,610In Stock	Mfr. Part No. 505551-1020 Mouser Part No 538-505551-1020	Molex	Board to Board & Mezzanine Connectors SlimStack .4mm Conn Plug 10Ckt Learn More about Molex slimstack	Datasheet	38,610In Stock	Cut Tape $0.911 $0.777 $0.693 $0.661 View Reel $0.561 $0.628 $0.619 $0.598 $0.59 $0.561 MouseReel Available	Min.: 1 Mult.: 1 : 7,000	Headers	10 Position	0.4 mm (0.016 in)	2 Row	Solder	Vertical	0.8 mm	300 mA	50 V	- 40 C	+ 85 C	Gold	Copper	Liquid Crystal Polymer (LCP)	505551	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors VersaPower Board-to-Board Plug, 0.30mm Pitch, 0.60mm Height, 20 Signal Pin + 8 Power Pin + 1 Fitting Nail 226277-0202 Molex 1: $0.62 900In Stock 8,000Expected 2026/12/21 New Product	Mfr. Part No. 226277-0202 Mouser Part No 538-226277-0202 New Product	Molex	Board to Board & Mezzanine Connectors VersaPower Board-to-Board Plug, 0.30mm Pitch, 0.60mm Height, 20 Signal Pin + 8 Power Pin + 1 Fitting Nail Learn More about Molex versapower connectors	Datasheet	900In Stock 8,000Expected 2026/12/21	Cut Tape $0.62 $0.529 $0.472 $0.449 Reel $0.386 View $0.406 $0.376 $0.354 $0.345	Min.: 1 Mult.: 1 : 1,000	Plug	28 Position	0.3 mm, 0.6 mm	2 Row	Solder	Vertical		300 mA, 3 A	50 V	- 40 C	+ 85 C	Gold	Copper Alloy	Liquid Crystal Polymer (LCP)	226277	Reel, Cut Tape
Board to Board & Mezzanine Connectors SlimStack .4mm Conn Plug 24Ckt 505550-2420 Molex 1: $0.69 76,535In Stock	Mfr. Part No. 505550-2420 Mouser Part No 538-505550-2420	Molex	Board to Board & Mezzanine Connectors SlimStack .4mm Conn Plug 24Ckt Learn More about Molex slimstack	Datasheet	76,535In Stock	Cut Tape $0.69 $0.583 $0.521 $0.497 Reel $0.368 View $0.443 $0.422 $0.395 $0.349 MouseReel Available	Min.: 1 Mult.: 1 : 7,000	Receptacles	24 Position	0.4 mm (0.016 in)	2 Row	Solder	Vertical	0.8 mm	300 mA	50 V	- 40 C	+ 85 C	Gold	Copper	Liquid Crystal Polymer (LCP)	505550	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors 20 Ckt Vert. Recept 0.5mm SMT Dual-Row 52991-0208 Molex 1: $1.37 28,007In Stock	Mfr. Part No. 52991-0208 Mouser Part No 538-52991-0208	Molex	Board to Board & Mezzanine Connectors 20 Ckt Vert. Recept 0.5mm SMT Dual-Row Learn More about Molex slimstack	Datasheet	28,007In Stock	Cut Tape $1.37 $1.22 $1.15 $1.10 Reel $0.876 View $1.04 $0.985 $0.927 $0.833 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Receptacles	20 Position	0.5 mm (0.02 in)	2 Row	Solder	Vertical	3 mm, 4 mm	500 mA	50 V	- 40 C	+ 105 C	Gold	Copper	Liquid Crystal Polymer (LCP)	52991	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors .5MM 80P V RECPT 3 & 4MM STACK HGHT 52991-0808 Molex 1: $7.29 5,141In Stock	Mfr. Part No. 52991-0808 Mouser Part No 538-52991-0808	Molex	Board to Board & Mezzanine Connectors .5MM 80P V RECPT 3 & 4MM STACK HGHT Learn More about Molex high speed solutions	Datasheet	5,141In Stock	Cut Tape $7.29 $6.20 $5.82 $5.54 View Reel $4.22 $5.27 $4.97 $4.76 $4.22 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Receptacles	80 Position	0.5 mm (0.02 in)	2 Row	Solder	Vertical	3 mm, 4 mm	500 mA	50 V	- 40 C	+ 105 C	Gold	Copper	Liquid Crystal Polymer (LCP)	52991	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors SlimStack B/B Rcpt .35mm 20Ckt 505066-2022 Molex 1: $0.64 13,716In Stock	Mfr. Part No. 505066-2022 Mouser Part No 538-505066-2022	Molex	Board to Board & Mezzanine Connectors SlimStack B/B Rcpt .35mm 20Ckt Learn More about Molex slimstack	Datasheet	13,716In Stock	Cut Tape $0.64 $0.542 $0.484 $0.461 Reel $0.411 View $0.391 $0.371 MouseReel Available	Min.: 1 Mult.: 1 : 250	Receptacles	20 Position	0.35 mm (0.014 in)	2 Row	Solder	Vertical	0.6 mm	300 mA	50 V	- 40 C	+ 85 C	Gold	Copper	Liquid Crystal Polymer (LCP)	505066	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors SlimStack .35mm Conn Rcpt 48Ckt ArmorNail 505066-4822 Molex 1: $1.26 2,404In Stock	Mfr. Part No. 505066-4822 Mouser Part No 538-505066-4822	Molex	Board to Board & Mezzanine Connectors SlimStack .35mm Conn Rcpt 48Ckt ArmorNail Learn More about Molex slimstack	Datasheet	2,404In Stock	Cut Tape $1.26 $0.94 $0.783 $0.729 View Reel $0.575 $0.666 $0.626 $0.609 $0.59 $0.575 $0.575 MouseReel Available	Min.: 1 Mult.: 1 : 8,000	Receptacles	48 Position	0.35 mm (0.014 in)	2 Row	Solder	Vertical	0.6 mm	300 mA	50 V	- 40 C	+ 85 C	Gold	Copper	Liquid Crystal Polymer (LCP)	505066	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors SlimStack .4mm Conn Plug 24Ckt 505551-2420 Molex 1: $1.19 4,881In Stock	Mfr. Part No. 505551-2420 Mouser Part No 538-505551-2420	Molex	Board to Board & Mezzanine Connectors SlimStack .4mm Conn Plug 24Ckt Learn More about Molex slimstack	Datasheet	4,881In Stock	Cut Tape $1.19 $1.02 $0.904 $0.861 View Reel $0.68 $0.806 $0.768 $0.732 $0.70 $0.68	Min.: 1 Mult.: 1 : 7,000	Headers	24 Position	0.4 mm (0.016 in)	2 Row	Solder	Vertical	0.8 mm	300 mA	50 V	- 40 C	+ 85 C	Gold	Copper	Liquid Crystal Polymer (LCP)	505551	Reel, Cut Tape
Board to Board & Mezzanine Connectors SlimStack B/B Rcpt .35mm 14Ckt 505066-1422 Molex 1: $0.49 31,545In Stock	Mfr. Part No. 505066-1422 Mouser Part No 538-505066-1422	Molex	Board to Board & Mezzanine Connectors SlimStack B/B Rcpt .35mm 14Ckt Learn More about Molex slimstack	Datasheet	31,545In Stock	Cut Tape $0.49 $0.415 $0.371 $0.354 View Reel $0.247 $0.315 $0.30 $0.281 $0.259 $0.247 MouseReel Available	Min.: 1 Mult.: 1 : 8,000	Receptacles	14 Position	0.35 mm (0.014 in)	2 Row	Solder	Vertical	0.6 mm	300 mA	50 V	- 40 C	+ 85 C	Gold	Copper	Liquid Crystal Polymer (LCP)	505066	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors SlimStack .35mm Conn Rcpt 30Ckt 505066-3022 Molex 1: $0.72 8,131In Stock	Mfr. Part No. 505066-3022 Mouser Part No 538-505066-3022	Molex	Board to Board & Mezzanine Connectors SlimStack .35mm Conn Rcpt 30Ckt Learn More about Molex slimstack	Datasheet	8,131In Stock	Cut Tape $0.72 $0.611 $0.547 $0.519 View Reel $0.397 $0.464 $0.433 $0.411 $0.397 $0.397 MouseReel Available	Min.: 1 Mult.: 1 : 8,000	Receptacles	30 Position	0.35 mm (0.014 in)	2 Row	Solder	Vertical	0.6 mm	300 mA	50 V	- 40 C	+ 85 C	Gold	Copper	Liquid Crystal Polymer (LCP)	505066	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors SlimStack B/B Rcpt .35mm 40Ckt 505066-4022 Molex 1: $0.80 10,443In Stock	Mfr. Part No. 505066-4022 Mouser Part No 538-505066-4022	Molex	Board to Board & Mezzanine Connectors SlimStack B/B Rcpt .35mm 40Ckt Learn More about Molex slimstack ssb6 connectors	Datasheet	10,443In Stock	Cut Tape $0.80 $0.678 $0.605 $0.577 View Reel $0.402 $0.515 $0.484 $0.454 $0.423 $0.402 MouseReel Available	Min.: 1 Mult.: 1 : 8,000	Receptacles	40 Position	0.35 mm (0.014 in)	2 Row	Solder	Vertical	0.6 mm	300 mA	50 V	- 40 C	+ 85 C	Gold	Copper	Liquid Crystal Polymer (LCP)	505066	Reel, Cut Tape, MouseReel