High-Current PCB Terminals (Power Elements)

High-current PCB power terminal: a surface mount element sized for current rather than for mechanical fixing.

Key specifications

MaterialSUS304 Stainless Steel
Installationreflow or wave soldering
StandardEIA-481, IPC J-STD-002
Typical substratehigh-current power and ground circuits
Key inspectionscontact resistance, temperature rise, solderability

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Product overviewOverview

Failures at high current usually start with heat. At high current the limiting factor is temperature rise at the joint, not the cross-section of the terminal. Solder voids and thin joints raise local resistance, so the pad area and paste volume are chosen to keep the joint temperature within the board rating.

Material: SUS304 Stainless Steel. It is attached by reflow or by wave soldering.

Key featuresFeatures

Joint temperature rise limits the design, not terminal section alone.
Tin or nickel plating suppresses oxidation and stabilises contact.
Cross-section sized from rated current and permitted temperature rise.
Reflow or wave-solder compatible, supplied on tape.

Typical applicationsApplications

Battery management board connections
Charger high-current circuits
Industrial power supplies and inverters

Selection notesSelection

Size the pad for current, not for the footprint of the part, and verify temperature rise on the assembled board at rated current.

Frequently asked questionsFAQ

What limits current in a PCB terminal?

Temperature rise at the joint. Voids or a thin solder layer raise resistance locally, so a terminal with adequate section can still run hot if the joint is poor.

What matters during installation of the High-Current PCB Terminals (Power Elements)?

Attach it by reflow or by wave soldering. Joint temperature rise limits the design, not terminal section alone.

Specifications

Material	SUS304 Stainless Steel
Packaging	Tape & Reel packaging
Standard	EIA-481, IPC J-STD-002
Installation	reflow or wave soldering
Typical substrate	high-current power and ground circuits
Key inspections	contact resistance, temperature rise, solderability

Manufacturing and inspection

Temperature-rise testing runs rated current to thermal equilibrium, recording terminal and joint temperatures.Alternative materials and finishes can be quoted side by side during sampling, so cost and corrosion resistance can be traded off explicitly.