Board to Board & Mezzanine Connectors

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Board-to-Board Connectors

Molex Board-to-Board Connectors are available in a variety of configurations, offering an expansive array of pitches and stacking heights. The printed circuit board (PCB) is a foundational staple in the electronics industry, and with continuing trends toward miniaturization, designers need a more diverse range of solutions for creating dependable PCB connections. To fit a range of applications, Molex Board-to-Board Connectors include mezzanine, backplane, coplanar, and more. These connectors are ideal for microminiature and high-power applications.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (JPY) 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 0.35 B/B Plug Assy 54Ckt EmbsTp PKG GEN 216701-0549 Molex 1: ¥94.7 39,426In Stock	Mfr. Part # 216701-0549 Mouser Part # 538-216701-0549	Molex	Board to Board & Mezzanine Connectors 0.35 B/B Plug Assy 54Ckt EmbsTp PKG GEN Learn More about Molex slimstack acb6plus connectors	Datasheet	39,426In Stock	Cut Tape ¥94.7 ¥94.3 ¥90.5 Reel ¥90.5	Min.: 1 Mult.: 1 : 20,000															216701	Reel, Cut Tape
Board to Board & Mezzanine Connectors SlimStack .35mm Conn Rcpt 10Ckt 505066-1022 Molex 1: ¥69.8 64,477In Stock	Mfr. Part # 505066-1022 Mouser Part # 538-505066-1022	Molex	Board to Board & Mezzanine Connectors SlimStack .35mm Conn Rcpt 10Ckt Learn More about Molex slimstack ssb6 connectors	Datasheet	64,477In Stock	Cut Tape ¥69.8 ¥59.1 ¥52.8 ¥50.3 View Reel ¥36 ¥45 ¥42.9 ¥40.2 ¥37 ¥36 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 0.635 BtB Hsg Cover Assy EmbsTp Pkg80Ckt 53647-0874 Molex 1: ¥747.5 2,547In Stock	Mfr. Part # 53647-0874 Mouser Part # 538-53647-0874	Molex	Board to Board & Mezzanine Connectors 0.635 BtB Hsg Cover Assy EmbsTp Pkg80Ckt Learn More about Molex slimstack 0635mm b2b connectors	Datasheet	2,547In Stock	Cut Tape ¥747.5 ¥720.9 ¥705.9 ¥699.3 Reel ¥588 View ¥694.3 ¥584.7 MouseReel Available	Min.: 1 Mult.: 1 : 840	Headers	80 Position	0.64 mm (0.025 in)	2 Row	Solder	Vertical	8 mm, 14 mm	500 mA	100 V	- 55 C	+ 105 C	Gold	Copper	Polyphenylene Sulfide (PPS)	53647	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors .50MM 22P SMT RCPT 2R VERT 54722-0224 Molex 1: ¥362.1 15,868In Stock	Mfr. Part # 54722-0224 Mouser Part # 538-54722-0224	Molex	Board to Board & Mezzanine Connectors .50MM 22P SMT RCPT 2R VERT Learn More about Molex high speed solutions	Datasheet	15,868In Stock	Cut Tape ¥362.1 ¥308.9 ¥275.7 ¥262.4 Reel ¥199.3 View ¥245.8 ¥234.2 ¥222.6 ¥187.7 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Receptacles	22 Position	0.5 mm (0.02 in)	2 Row	Solder	Vertical	1.5 mm	500 mA	50 V	- 40 C	+ 105 C	Gold	Copper	Thermoplastic (TP)	54722	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors 0.4 BtB Plg Assy J-B endTl 12CktEmbsTpPkg 55909-9974 Molex 1: ¥260.8 7,802In Stock	Mfr. Part # 55909-9974 Mouser Part # 538-55909-9974	Molex	Board to Board & Mezzanine Connectors 0.4 BtB Plg Assy J-B endTl 12CktEmbsTpPkg	Datasheet	7,802In Stock	Cut Tape ¥260.8 ¥229.2 ¥210.9 ¥202.6 Reel ¥159.5 View ¥191 ¥181 ¥165.4 ¥152.6 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Headers	12 Position	0.4 mm (0.016 in)	2 Row	Solder	Vertical	1.5 mm, 1.8 mm	300 mA	50 V	- 25 C	+ 85 C	Gold	Brass	Liquid Crystal Polymer (LCP)	55909	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors 0.4 B/B RA Rec Hsg Assy 34Ckt EmbsTpPkg 54552-0342 Molex 1: ¥413.6 8,952In Stock	Mfr. Part # 54552-0342 Mouser Part # 538-54552-0342	Molex	Board to Board & Mezzanine Connectors 0.4 B/B RA Rec Hsg Assy 34Ckt EmbsTpPkg Learn More about Molex high speed solutions	Datasheet	8,952In Stock	Cut Tape ¥413.6 ¥372.1 ¥348.8 ¥343.8 Reel ¥194.3 View ¥320.6 ¥225.9 ¥202.6 ¥160.1 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	Receptacles	34 Position	0.4 mm (0.016 in)	2 Row	Solder	Vertical		300 mA	30 V	- 40 C	+ 105 C	Gold		Liquid Crystal Polymer (LCP)	54552	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors 1.27MM SEARAY PLUG 4ROW 40P 3.5MM SH 46556-1145 Molex 1: ¥3,102.7 290In Stock 394Expected 11/2/2026	Mfr. Part # 46556-1145 Mouser Part # 538-46556-1145	Molex	Board to Board & Mezzanine Connectors 1.27MM SEARAY PLUG 4ROW 40P 3.5MM SH Learn More about Molex searay connectors	Datasheet	290In Stock 394Expected 11/2/2026	Cut Tape ¥3,102.7 ¥2,637.7 ¥2,473.2 ¥2,355.3 Reel ¥2,059.6 View ¥2,307.1 ¥1,961.6 MouseReel Available	Min.: 1 Mult.: 1 : 300	Headers	40 Position	1.27 mm (0.05 in)	4 Row	Solder	Vertical	2 mm	2.7 A	240 VAC	- 55 C	+ 125 C	Gold	Copper	Thermoplastic (TP)	46556	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors 0.35 B/B Plug Assy 50Ckt EmbsTp PKG GEN 216701-0509 Molex 1: ¥94.7 33,126In Stock	Mfr. Part # 216701-0509 Mouser Part # 538-216701-0509	Molex	Board to Board & Mezzanine Connectors 0.35 B/B Plug Assy 50Ckt EmbsTp PKG GEN Learn More about Molex slimstack acb6plus connectors	Datasheet	33,126In Stock	Cut Tape ¥94.7 ¥94.5 ¥85 Reel ¥85	Min.: 1 Mult.: 1 : 20,000		60 Position	0.35 mm (0.014 in)												216701	Reel, Cut Tape
Board to Board & Mezzanine Connectors SeaRay Slim PlugAssy 04X10 2.9 Tin 46556-1245 Molex 1: ¥3,356.9 140In Stock	Mfr. Part # 46556-1245 Mouser Part # 538-46556-1245	Molex	Board to Board & Mezzanine Connectors SeaRay Slim PlugAssy 04X10 2.9 Tin Learn More about Molex searay connectors	Datasheet	140In Stock	Cut Tape ¥3,356.9 ¥2,910.1 ¥2,758.9 ¥2,717.4 Reel ¥2,262.3 View ¥2,411.8 ¥2,229.1 ¥2,056.3 Quote	Min.: 1 Mult.: 1 : 280	Headers	40 Position	1.27 mm (0.05 in)	4 Row	Solder	Vertical	3 mm	2.7 A	240 VAC	- 55 C	+ 125 C	Gold	Copper	Thermoplastic (TP)	46556	Reel, Cut Tape
Board to Board & Mezzanine Connectors 1.27MM SEARAY RECPT 4ROW 80P 3.5MM SH 46557-2145 Molex 1: ¥3,275.5 242In Stock	Mfr. Part # 46557-2145 Mouser Part # 538-46557-2145	Molex	Board to Board & Mezzanine Connectors 1.27MM SEARAY RECPT 4ROW 80P 3.5MM SH Learn More about Molex searay connectors	Datasheet	242In Stock	Cut Tape ¥3,275.5 ¥2,935 ¥2,750.6 ¥2,629.4 View Reel ¥2,152.7 ¥2,154.3 ¥2,152.7 Quote MouseReel Available	Min.: 1 Mult.: 1 : 350	Receptacles	80 Position	1.27 mm (0.05 in)	4 Row	Solder	Vertical	5 mm	2.7 A	240 VAC	- 55 C	+ 125 C	Gold	Copper	Thermoplastic (TP)	46557	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors .35mm Plg 24Ckt 505070-2442 Molex 1: ¥124.6 62,661In Stock	Mfr. Part # 505070-2442 Mouser Part # 538-505070-2442	Molex	Board to Board & Mezzanine Connectors .35mm Plg 24Ckt Learn More about Molex slimstack	Datasheet	62,661In Stock	Cut Tape ¥124.6 ¥109.8 ¥100.5 ¥90.5 View Reel ¥58.3 ¥82.7 ¥68.4 ¥64.3 ¥61.1 ¥58.3	Min.: 1 Mult.: 1 : 8,000	Headers	24 Position	0.35 mm (0.014 in)	2 Row	Solder	Straight	0.6 mm, 0.7 mm	300 mA	50 V	- 40 C	+ 85 C	Gold	Copper	Liquid Crystal Polymer (LCP)	505070	Reel, Cut Tape
Board to Board & Mezzanine Connectors .35 B/B Plug 34Ckt 505070-3442 Molex 1: ¥144.5 42,542In Stock	Mfr. Part # 505070-3442 Mouser Part # 538-505070-3442	Molex	Board to Board & Mezzanine Connectors .35 B/B Plug 34Ckt Learn More about Molex slimstack	Datasheet	42,542In Stock	Cut Tape ¥144.5 ¥123.6 ¥118.6 ¥111 View Reel ¥75.7 ¥100.8 ¥90.7 ¥82.7 ¥77.4 ¥75.7 ¥75.7	Min.: 1 Mult.: 1 : 8,000	Headers	34 Position	0.35 mm (0.014 in)	2 Row	Solder	Vertical	0.6 mm, 0.7 mm	300 mA	50 V	- 40 C	+ 85 C	Gold	Copper	Liquid Crystal Polymer (LCP)	505070	Reel, Cut Tape
Board to Board & Mezzanine Connectors SlimStack .35mm Plg 6Ckt Armor Nail 505417-0610 Molex 1: ¥104.6 30,769In Stock	Mfr. Part # 505417-0610 Mouser Part # 538-505417-0610	Molex	Board to Board & Mezzanine Connectors SlimStack .35mm Plg 6Ckt Armor Nail Learn More about Molex slimstack	Datasheet	30,769In Stock	Cut Tape ¥104.6 ¥88.9 ¥79.4 ¥75.6 Reel ¥51.2 View ¥67.4 ¥65.1 ¥61.1 ¥49 MouseReel Available	Min.: 1 Mult.: 1 : 7,000	Headers	6 Position	0.35 mm (0.014 in)	2 Row	Solder	Vertical	1 mm	300 mA	50 V	- 40 C	+ 85 C	Gold	Copper	Liquid Crystal Polymer (LCP)	505417	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors 0.4 B-TO-B REC ASSY EMBSTP PKG 51338-4473 Molex 1: ¥358.8 14,532In Stock	Mfr. Part # 51338-4473 Mouser Part # 538-51338-4473	Molex	Board to Board & Mezzanine Connectors 0.4 B-TO-B REC ASSY EMBSTP PKG Learn More about Molex slimstack	Datasheet	14,532In Stock	Cut Tape ¥358.8 ¥305.6 ¥279 ¥264.1 Reel ¥172.7 View ¥245.8 ¥202.6 ¥174.4 ¥167.8	Min.: 1 Mult.: 1 : 2,500	Receptacles	44 Position	0.4 mm (0.016 in)	2 Row	Solder	Vertical	1.5 mm, 2 mm	300 mA	50 V	- 25 C	+ 85 C	Gold	Copper	Liquid Crystal Polymer (LCP)	51338	Reel, Cut Tape
Board to Board & Mezzanine Connectors SlimStack .635mm Plg 100Ckt 53625-1074 Molex 1: ¥1,460 2,800In Stock	Mfr. Part # 53625-1074 Mouser Part # 538-53625-1074	Molex	Board to Board & Mezzanine Connectors SlimStack .635mm Plg 100Ckt Learn More about Molex slimstack 0635mm b2b connectors	Datasheet	2,800In Stock	Cut Tape ¥1,460 ¥1,313.9 ¥1,237.4 ¥1,205.9 Reel ¥868.7 View ¥1,174.3 ¥1,048.1 ¥985 ¥803.9	Min.: 1 Mult.: 1 : 1,000	Headers	100 Position	0.64 mm (0.025 in)	2 Row	Solder	Vertical	7 mm, 13 mm	500 mA	100 V	- 55 C	+ 105 C	Gold	Copper	Thermoplastic (TP)	53625	Reel, Cut Tape
Board to Board & Mezzanine Connectors .635 HEADER SURFACE MNT 70 CKT 53627-0774 Molex 1: ¥740.8 1,108In Stock	Mfr. Part # 53627-0774 Mouser Part # 538-53627-0774	Molex	Board to Board & Mezzanine Connectors .635 HEADER SURFACE MNT 70 CKT Learn More about Molex slimstack 0635mm b2b connectors	Datasheet	1,108In Stock	Cut Tape ¥740.8 ¥629.5 ¥591.3 ¥563.1 Reel ¥504.9 View ¥556.4 ¥536.5 ¥488.3 ¥480 MouseReel Available	Min.: 1 Mult.: 1 : 700	Headers	70 Position	0.64 mm (0.025 in)	2 Row	Solder	Vertical	10 mm, 16 mm	500 mA	100 V	- 55 C	+ 105 C	Gold	Copper	Polyphenylene Sulfide (PPS)	53627	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors 0.5 BtB Rec Hsg Assy ssy 16Ckt EmbsTp Pkg 54102-0164 Molex 1: ¥313.9 9,777In Stock	Mfr. Part # 54102-0164 Mouser Part # 538-54102-0164	Molex	Board to Board & Mezzanine Connectors 0.5 BtB Rec Hsg Assy ssy 16Ckt EmbsTp Pkg Learn More about Molex high speed solutions	Datasheet	9,777In Stock	Cut Tape ¥313.9 ¥269.1 ¥240.8 ¥229.2 Reel ¥176.1 View ¥214.3 ¥204.3 ¥194.3 ¥164.8 MouseReel Available	Min.: 1 Mult.: 1 : 3,000		16 Position	0.5 mm (0.02 in)	2 Row	Solder	Vertical		500 mA	50 V	- 40 C	+ 105 C	Gold			54102	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors .5MM VERT PLG 20CKT SMT DUAL ROW 55560-0207 Molex 1: ¥290.7 14,642In Stock	Mfr. Part # 55560-0207 Mouser Part # 538-55560-0207	Molex	Board to Board & Mezzanine Connectors .5MM VERT PLG 20CKT SMT DUAL ROW Learn More about Molex slimstack	Datasheet	14,642In Stock	Cut Tape ¥290.7 ¥255.8 ¥234.2 ¥224.2 Reel ¥166.1 View ¥210.9 ¥201 ¥191 ¥161.4 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Headers	20 Position	0.5 mm (0.02 in)	2 Row	Solder	Vertical	1.5 mm	500 mA	50 V	- 40 C	+ 105 C	Gold	Brass	Liquid Crystal Polymer (LCP)	55560	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors 0.4 B/B PLUG ASSY H=2 EMBSTP PKG 501745-0541 Molex 1: ¥383.7 2,473In Stock	Mfr. Part # 501745-0541 Mouser Part # 538-501745-0541	Molex	Board to Board & Mezzanine Connectors 0.4 B/B PLUG ASSY H=2 EMBSTP PKG Learn More about Molex slimstack	Datasheet	2,473In Stock	Cut Tape ¥383.7 ¥297.3 ¥250.8 ¥234.2 Reel ¥206 View ¥224.2 ¥214.3 ¥196	Min.: 1 Mult.: 1 : 2,500	Headers	54 Position	0.4 mm (0.016 in)	2 Row	Solder	Vertical	2 mm, 2.3 mm	300 mA	50 V	- 40 C	+ 105 C	Gold	Brass, Phosphor Bronze	Liquid Crystal Polymer (LCP)	501745	Reel, Cut Tape
Board to Board & Mezzanine Connectors SlimStack .35mm Conn Plug 54Ckt ArmorNail 505070-5422 Molex 1: ¥137.9 3,814In Stock	Mfr. Part # 505070-5422 Mouser Part # 538-505070-5422	Molex	Board to Board & Mezzanine Connectors SlimStack .35mm Conn Plug 54Ckt ArmorNail Learn More about Molex slimstack	Datasheet	3,814In Stock	Cut Tape ¥137.9 ¥117.8 ¥105.1 ¥100.2 View Reel ¥89.4 ¥93.8 ¥89.4 ¥89.4	Min.: 1 Mult.: 1 : 8,000	Headers	54 Position	0.35 mm (0.014 in)	2 Row	Solder	Vertical	0.6 mm, 0.7 mm	300 mA	50 V	- 40 C	+ 85 C	Gold	Copper	Liquid Crystal Polymer (LCP)	505070	Reel, Cut Tape
Board to Board & Mezzanine Connectors 0.35 B/B PLG Assy 30Ckt EmbsTp Pkg 505274-3012 Molex 1: ¥137.9 9,776In Stock	Mfr. Part # 505274-3012 Mouser Part # 538-505274-3012	Molex	Board to Board & Mezzanine Connectors 0.35 B/B PLG Assy 30Ckt EmbsTp Pkg Learn More about Molex slimstack	Datasheet	9,776In Stock	Cut Tape ¥137.9 ¥120.9 ¥109.8 ¥99.8 Reel ¥67.4 View ¥91.2 ¥75.4 ¥70.8 ¥64.1	Min.: 1 Mult.: 1 : 7,000	Headers	30 Position	0.35 mm (0.014 in)	2 Row	Solder	Vertical	0.8 mm, 0.9 mm	300 mA	50 V	- 40 C	+ 85 C	Gold	Copper	Liquid Crystal Polymer (LCP)	505274	Reel, Cut Tape
Board to Board & Mezzanine Connectors SeaRay Slim Plug Asy 04X30 2.9 Tin 46556-3245 Molex 1: ¥4,179.1 280In Stock	Mfr. Part # 46556-3245 Mouser Part # 538-46556-3245	Molex	Board to Board & Mezzanine Connectors SeaRay Slim Plug Asy 04X30 2.9 Tin Learn More about Molex searay connectors	Datasheet	280In Stock	Cut Tape ¥4,179.1 ¥3,551.2 ¥3,328.6 ¥3,170.8 View Reel ¥2,724 ¥3,019.7 ¥2,724 Quote	Min.: 1 Mult.: 1 : 280	Headers	120 Position	1.27 mm (0.05 in)	4 Row	Solder	Vertical	3 mm	2.7 A	240 VAC	- 55 C	+ 125 C	Gold	Copper	Thermoplastic (TP)	46556	Reel, Cut Tape
Board to Board & Mezzanine Connectors SLIMSTACK .35MM SSB6 PLUG 20CKT 504622-2012 Molex 1: ¥103 35,244In Stock	Mfr. Part # 504622-2012 Mouser Part # 538-504622-2012	Molex	Board to Board & Mezzanine Connectors SLIMSTACK .35MM SSB6 PLUG 20CKT	Datasheet	35,244In Stock	Cut Tape ¥103 ¥89 ¥81.4 ¥73.4 View Reel ¥40.5 ¥67.1 ¥56.5 ¥53 ¥43.9 ¥40.5	Min.: 1 Mult.: 1 : 8,000	Headers	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)	504622	Reel, Cut Tape
Board to Board & Mezzanine Connectors 0.35 B/B Plug 42Ckt 505070-4222 Molex 1: ¥156.1 6,828In Stock	Mfr. Part # 505070-4222 Mouser Part # 538-505070-4222	Molex	Board to Board & Mezzanine Connectors 0.35 B/B Plug 42Ckt Learn More about Molex slimstack hybrid	Datasheet	6,828In Stock	Cut Tape ¥156.1 ¥115.9 ¥96.5 ¥89.5 View Reel ¥71.9 ¥81.7 ¥77.2 ¥76.6 ¥73.6 ¥71.9 ¥71.9	Min.: 1 Mult.: 1 : 8,000	Headers	42 Position	0.35 mm (0.014 in)	2 Row	Solder	Vertical	0.6 mm, 0.7 mm	300 mA	50 V	- 40 C	+ 85 C	Gold	Copper	Liquid Crystal Polymer (LCP)	505070	Reel, Cut Tape
Board to Board & Mezzanine Connectors 0.35 B/B PLG Assy 40Ckt EmbsTp Pkg 505274-4012 Molex 1: ¥132.9 7,632In Stock	Mfr. Part # 505274-4012 Mouser Part # 538-505274-4012	Molex	Board to Board & Mezzanine Connectors 0.35 B/B PLG Assy 40Ckt EmbsTp Pkg Learn More about Molex slimstack	Datasheet	7,632In Stock	Cut Tape ¥132.9 ¥112.3 ¥100.2 ¥95.3 Reel ¥71.8 View ¥85.2 ¥80.2 ¥75.2 ¥68.3	Min.: 1 Mult.: 1 : 7,000	Headers	40 Position	0.35 mm (0.014 in)	2 Row	Solder	Vertical	0.8 mm, 0.9 mm	300 mA	50 V	- 40 C	+ 85 C	Gold	Copper	Liquid Crystal Polymer (LCP)	505274	Reel, Cut Tape