Skip to main content
Molex 5055503020 — Mezzanine & Stacking Connectors

Molex SlimStack 5055503020 Receptacle, 30 Pos, 0.40mm Pitch

MPN5055503020
Active

Molex SlimStack 505550 series receptacle, 30 positions, 0.016" (0.40mm) pitch, dual-row, surface mount, gold-plated contacts, 0.8mm mated stacking height, solder retention.

$0.5373Ref. price · indicative, final on quote
RoHSROHS3 Compliant
SeriesSlimStack 505550
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5055503020 specifications
ParameterValue
SeriesSlimStack 505550
MountingSurface Mount
Connector typeReceptacle, Center Strip Contacts
Height above board0.026\" (0.65mm)
Mated stacking heights0.8mm
Pitch0.016\" (0.40mm)
PackageTape & Reel (TR) Cut Tape (CT)
FeaturesSolder Retention
Contact finishGold
Rows2
Positions30
Contact finish thickness4.00µin (0.100µm)

Product details

0.40mm Pitch Mezzanine Receptacle for Tight Board Stacks

The 0.016" (0.40mm) pitch and 0.8mm mated stacking height let two PCBs sit close together — think smartphone-thin assemblies or compact sensor modules. Dual rows of gold-plated centre strip contacts handle signal duty; the 4.00µin gold flash is enough for the limited mating cycles typical of a factory-mated stack.

Solder Retention and SMT Mounting

No through-hole anchors needed — the retention pads are part of the SMT footprint.

Frequently asked questions

What is the pitch of 5055503020?

The pitch is 0.016" (0.40mm), which is the tightest in the SlimStack 505550 series and drives the PCB routing density.

What is the stacking height of 5055503020?

The mated stacking height is 0.8mm, defining the board-to-board gap in a mezzanine stack.

Is 5055503020 RoHS compliant?

Yes, it is ROHS3 compliant.

What is a suitable replacement or equivalent for 5055503020?

The 5055503020 is the standard 30-position receptacle in the SlimStack 505550 series.

Where can I buy 5055503020 available via RFQ confirmation?

This part is active and sourced to order against your BOM quantity.