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Molex 54363-0278 — Mezzanine & Stacking Connectors

Molex 54363-0278 SlimStack Receptacle, 0.50mm Pitch

MPN54363-0278
Active

Molex SlimStack 54363 series receptacle, center strip contacts, 20 circuits, 0.50mm pitch, 2 rows, surface mount, gold plating 10.0µin, 1.50mm board height, mated stacking heights 2mm or 3mm, solder retention feature.

$2.9100Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

54363-0278 specifications
ParameterValue
SeriesSlimStack 54363
MountingSurface Mount
Connector typeReceptacle, Center Strip Contacts
Height above board0.059\" (1.50mm)
Mated stacking heights2mm, 3mm
Pitch0.020\" (0.50mm)
PackageTape & Reel (TR)
FeaturesSolder Retention
Contact finishGold
Rows2
Positions20
Contact finish thickness10.0µin (0.25µm)

Product details

Board-to-Board Mezzanine Interconnect for Tight Stack-Ups

The connector sits 1.50 mm above the board and supports mated stacking heights of 2mm or 3mm, so you pick the mated pair height to match the gap between your two PCBs.

It is a surface-mount part, shipped in Tape & Reel packaging for pick-and-place.

Mating and Stacking Height Options

The 54363-0278 mates with a matching SlimStack 54363 header (same 0.50 mm pitch, 20 positions, 2 rows). If your enclosure has a 2.5 mm gap between boards, the 2 mm stack gives you 0.5 mm of clearance; if you need more room for components on the underside, the 3 mm stack opens up an extra millimeter.

Frequently asked questions

What is the mated stacking height for Molex 54363-0278?

The 54363-0278 supports mated stacking heights of 2mm or 3mm, depending on which header height you pair it with. The receptacle itself sits 1.50 mm above the board.

Where can I buy Molex 54363-0278?

The 54363-0278 is sourced to order through independent distribution.