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.

Results: 554
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Description Datasheet Availability Pricing (CAD) 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
Minimum Operating Temperature
Maximum Operating Temperature
Contact Plating
Contact Material
Housing Material
Series
Packaging
Molex Board to Board & Mezzanine Connectors 0.5 B/B Plug Hsg Ass y 50Ckt EmbsTp Pkg
Datasheet
3,215In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

Plugs 50 Position 0.5 mm (0.02 in) 2 Row Solder Vertical 4 mm 500 mA 50 V - 40 C + 105 C Gold 501920 Reel, Cut Tape, MouseReel
Molex Board to Board & Mezzanine Connectors SlimStack .4mm Rcpt SMT DR Vrt 8Ckt
Datasheet
13,889In Stock
Min.: 1
Mult.: 1
Reel: 7,000

Receptacles 8 Position 0.4 mm (0.016 in) 2 Row Solder Vertical 1 mm 300 mA 50 V - 25 C + 85 C Gold Copper Liquid Crystal Polymer (LCP) 502426 Reel, Cut Tape
Molex Board to Board & Mezzanine Connectors 0.4 B/B Rec Assy 70Ckt EmbsTpPkg
Datasheet
1,172In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Receptacles 70 Position 0.4 mm (0.016 in) 2 Row Solder Vertical 1 mm 300 mA 50 V - 25 C + 85 C Gold Copper Liquid Crystal Polymer (LCP) 502426 Reel, Cut Tape, MouseReel
Molex Board to Board & Mezzanine Connectors 0.4 B/B PLUG ASSY W/TAPE 80P
Datasheet
5,676In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Headers 80 Position 0.4 mm (0.016 in) 2 Row Solder Vertical 1 mm 300 mA 50 V - 20 C + 85 C Gold Copper Liquid Crystal Polymer (LCP) 502430 Reel, Cut Tape, MouseReel
Molex Board to Board & Mezzanine Connectors 0.4 B/B PLG RA ASYW/ BOSS30CKTEMBSTPPKG
Datasheet
3,143In Stock
9,000Expected 2026-06-11
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

Plugs 30 Position 0.4 mm (0.016 in) 2 Row Solder Right Angle 300 mA 30 V - 40 C + 105 C Gold 503376 Reel, Cut Tape, MouseReel
Molex Board to Board & Mezzanine Connectors SLIMSTACK .4MM PITCH HRF RECEPT 14CKT
Datasheet
5,565In Stock
Min.: 1
Mult.: 1
Reel: 7,000

Receptacles 14 Position 0.4 mm (0.016 in) 2 Row Solder Vertical 0.7 mm 300 mA 50 V - 40 C + 85 C Gold Copper Liquid Crystal Polymer (LCP) 503548 Reel, Cut Tape
Molex Board to Board & Mezzanine Connectors SLIMSTACK .4MM PITCH HRF PLUG 10CKT
Datasheet
26,492In Stock
56,000Expected 2026-04-02
Min.: 1
Mult.: 1
Reel: 7,000

Headers 10 Position 0.4 mm (0.016 in) 2 Row Solder Vertical 0.7 mm 300 mA 50 V - 40 C + 85 C Gold Copper Liquid Crystal Polymer (LCP) 503552 Reel, Cut Tape
Molex Board to Board & Mezzanine Connectors SlimStack B/B Plug .40mm 10Ckt
Datasheet
23,022In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 7,000

Receptacles 8 Position 0.4 mm (0.016 in) 2 Row Solder Vertical 3 A 50 V - 40 C + 85 C Gold Liquid Crystal Polymer (LCP) 505006 Reel, Cut Tape, MouseReel
Molex Board to Board & Mezzanine Connectors SlimStack .35mm Conn Rcpt 10Ckt
Datasheet
12,597In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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
Molex Board to Board & Mezzanine Connectors SlimStack .35mm Conn Rcpt 30Ckt
Datasheet
10,041In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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
Molex Board to Board & Mezzanine Connectors SLIMSTACK .35MM SSB RP PLG 10CKT ARMR NL
Datasheet
10,010In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 8,000

Headers 10 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, MouseReel
Molex Board to Board & Mezzanine Connectors SlimStack .35mm Plg Armor Nail 14Ckt
Datasheet
47,332In Stock
Min.: 1
Mult.: 1
Reel: 8,000

Headers 14 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
Molex Board to Board & Mezzanine Connectors .35mm SlimStack Conn Plug 24Ckt ArmorNail
Datasheet
20,201In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 8,000

Headers 24 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, MouseReel
Molex Board to Board & Mezzanine Connectors .35 B/B Plug 40Ckt
Datasheet
7,752In Stock
Min.: 1
Mult.: 1
Reel: 8,000

Plugs 40 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 Alloy Liquid Crystal Polymer (LCP) 505070 Reel, Cut Tape
Molex Board to Board & Mezzanine Connectors .35mm BtB Rec Assy 10Ckt EmbsTp Pkg.
Datasheet
9,739In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 7,000

Receptacles 10 Position 0.35 mm (0.014 in) 2 Row SMD Vertical 0.7 mm, 0.8 mm 300 mA 50 V - 40 C + 85 C Gold Copper Liquid Crystal Polymer (LCP) 505270 Reel, Cut Tape, MouseReel
Molex Board to Board & Mezzanine Connectors SlimStack B/B Plug .35mm 34Ckt
Datasheet
4,569In Stock
Min.: 1
Mult.: 1
Reel: 7,000

Headers 34 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
Molex Board to Board & Mezzanine Connectors SlimStack .35mm Conn Rcpt ArmorNail 6Ckt
Datasheet
10,841In Stock
Min.: 1
Mult.: 1
Reel: 7,000

Receptacles 6 Position 0.35 mm (0.014 in) 2 Row Solder Vertical 0.9 mm, 1 mm 300 mA 50 V - 40 C + 85 C Gold Copper Liquid Crystal Polymer (LCP) 505413 Reel, Cut Tape
Molex Board to Board & Mezzanine Connectors SlimStack .35mm Plg 6Ckt Armor Nail
Datasheet
14,876In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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
Molex Board to Board & Mezzanine Connectors 0.35 B/B Rec Assy 34Ckt EmbsTp Pkg
Datasheet
19,600In Stock
Min.: 1
Mult.: 1
Reel: 7,000

Headers 34 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
Molex Board to Board & Mezzanine Connectors SS Hybrid Pwr Plug 4 Pwr / 4S Contacts
Datasheet
29,077In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 6,000

Plugs 8 Position 0.4 mm (0.016 in) 2 Row Solder Vertical 0.6 mm 500 mA, 5 A 50 V - 40 C + 85 C Gold Liquid Crystal Polymer (LCP) 505476 Reel, Cut Tape, MouseReel
Molex Board to Board & Mezzanine Connectors .4mm BtB Rec Hsg J-Bend Tl 20Ckt Tail
Datasheet
11,220In Stock
Min.: 1
Mult.: 1
Reel: 2,500

Receptacles 20 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
Molex Board to Board & Mezzanine Connectors 60 Ckt Receptacle J-leads & solder tab
Datasheet
1,114In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Receptacles 60 Position 0.4 mm (0.016 in) 2 Row Solder Vertical 300 mA 50 V - 25 C + 85 C Gold Thermoplastic (TP) 51338 Reel, Cut Tape, MouseReel
Molex Board to Board & Mezzanine Connectors 0.4 B-TO-B REC ASSY EMBSTP PKG
Datasheet
23,197In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Receptacles 10 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, MouseReel
Molex Board to Board & Mezzanine Connectors 0.4BtB RecHsgAssyJ-B endTl 12CktEmbsTpPkg
Datasheet
6,145In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

Receptacles 12 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, MouseReel
Molex Board to Board & Mezzanine Connectors 0.8 BtB Hsg Assy SMT SMT 10Ckt EmbsTp Pkg
Datasheet
4,746In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

Receptacles 10 Position 0.8 mm (0.031 in) 2 Row Solder Vertical 500 mA 50 V - 40 C + 105 C Tin Thermoplastic (TP) 52465 Reel, Cut Tape, MouseReel