SMT Surface Mount Standoffs

SMT surface mount standoff supplied on tape and reel, placed and reflowed like any other SMD part.

Key specifications

MaterialSUS304 Stainless Steel
Installationreflow soldering (SMT placement)
StandardEIA-481, IPC J-STD-002
Typical substrateboard supports and thermal contact faces
Key inspectionsheight, flatness, joint integrity

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Product overviewOverview

A surface-mount spacer establishes a precise height above the board: once soldered, its top face becomes the datum for another board, a shield can or a heatsink. The part is located by the placement machine, so pocket geometry and coplanarity decide whether it sits flat before reflow. A standoff that is not coplanar rocks on the pad, and the joint ends up with a void on one side.

Material: SUS304 Stainless Steel. It is reflow-soldered with the rest of the SMT line.

Key featuresFeatures

Coplanarity decides whether the joint forms evenly.
Soldered to the board to create a precise support or location height.
Broad top face increases contact area for support and heat transfer.
Multiple solder feet distribute stress and improve shear capacity.

Typical applicationsApplications

Board-to-board support and location
Shield-can support
Heatsink contact surfaces

Selection notesSelection

Check coplanarity against the pad area, and confirm the pocket depth in the carrier tape so the nozzle can pick from a consistent height.

Frequently asked questionsFAQ

Why does an SMT standoff sit at an angle after reflow?

Usually coplanarity or paste volume: the part rocks on the paste and surface tension pulls it to one side. Both are checked before blaming the placement program.

What matters during installation of the SMT Surface Mount Standoffs?

Follow the paste profile for the board, and keep the thread free of solder and flux during reflow Coplanarity decides whether the joint forms evenly.

Specifications

Material	SUS304 Stainless Steel
Packaging	Tape & Reel packaging
Standard	EIA-481, IPC J-STD-002
Installation	reflow soldering (SMT placement)
Typical substrate	board supports and thermal contact faces
Key inspections	height, flatness, joint integrity

Manufacturing and inspection

Height and flatness are sampled optically or with a height gauge.We recommend a pilot assembly at the actual torque and mating part before locking the process parameters for volume.