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Molex 0541020304 — Board-to-Board Connectors

Molex 0541020304 SlimStack 54102

MPN0541020304
Active

Molex SlimStack 54102 0541020304, 30-position receptacle, center strip contacts, 0.50mm pitch, 2 rows, gold 10.0µin plating, 2.5mm mated stack height, surface mount.

$2.1100Ref. price · indicative, final on quote
Molex 0541020304 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

0541020304 specifications
ParameterValue
SeriesSlimStack 54102
MountingSurface Mount
Connector typeReceptacle, Center Strip Contacts
Height above board0.079\" (2.00mm)
Mated stacking heights2.5mm
Pitch0.020\" (0.50mm)
PackageTape & Reel (TR) Cut Tape (CT)
ManufacturerMolex
Contact finishGold
Rows2
Positions30
Contact finish thickness10.0µin (0.25µm)

Product details

Board-Stacking Fit at 0.50mm Pitch

The 0.020" (0.50mm) pitch packs 30 circuits into a dual-row layout — each row carries 15 contacts, with center strip contacts between the rows that provide a natural ground reference for differential signal pairs. The 0.079" (2.00mm) height above board and 2.5mm mated stacking height define the z-axis clearance between the two PCBs; that 2.5mm gap is the dimension you design the enclosure standoffs around.

The gold-on-gold interface keeps contact resistance stable through the first several mates, which matters for signal integrity in a high-density differential pair layout.

Surface-Mount Assembly and Packaging

Surface-mount termination suits reflow soldering on standard SMT lines. The 0.50mm pitch means the PCB footprint needs tight solder paste registration — the pad layout in the product drawing is the one to follow, not a generic 0.50mm pattern.

Frequently asked questions

Where can I buy Molex 0541020304?

Submit a quote request for current pricing and availability — stock position and lead time are confirmed at quote time, not listed on the page.

What is the mating height for 0541020304?

The mated stacking height is 2.5mm. The connector stands 0.079" (2.00mm) above the board surface before mating, so the total z-height between the two PCBs in the mated assembly is 2.5mm.

Is 0541020304 RoHS compliant?

The part is listed as RoHS compliant — no RoHS exemption or lead-content note appears on the record. The gold plating (10.0µin) and the housing material in the SlimStack 54102 series are specified for lead-free reflow profiles.

What is the pitch of 0541020304?

The contact pitch is 0.020" (0.50mm). That 0.50mm center-to-center spacing is the dimension that drives the PCB footprint trace routing and via placement between the two rows.

What is the contact finish thickness on 0541020304?

The contact finish is gold at 10.0µin (0.25µm) thickness. That plating grade supports moderate mating cycles — enough for board assembly and rework, but not intended for repeated field disconnect.