shop/ consumables/ solder wire 0.4mm 63/37 - fine

Fine 0.4mm 63/37 tin-lead solder with a rosin core, sized for SMD pads and tight rework. The thin gauge feeds slowly, so small joints get solder without flooding.

63/37 is eutectic: it melts and freezes at one temperature instead of passing through a mushy phase, which makes clean, shiny joints easier.

Specs

Alloy 63/37 tin-lead (eutectic)
Flux core Rosin
Wire diameter 0.4mm
Melting point Approx. 183°C
Weight 50g (gross)

Pair it with fine tweezers and a fine chisel or conical tip for SMD work.

FAQ

Will this ship from Manila?

Yes — all stock ships from our Quezon City warehouse. Order before 4 PM weekdays for same-day cutoff via J&T or LBC.

Do you ship nationwide?

Yes. Metro Manila usually arrives next-day; provincial 1–3 working days.

Can I get this on a school PO or class order?

Yes — we accept Purchase Orders from accredited schools and universities. Contact us with your PO details and we'll process it.

Is this compatible with Arduino, ESP32, or Raspberry Pi?

Most parts work with common maker boards — check the description for specific pinout / voltage notes. If you're unsure, send us a message before ordering.

What's your return policy?

7-day inspection window for DOA units. Email proof of issue and we'll ship a replacement or refund. Used / installed parts are not returnable unless faulty.

Do you offer technical support?

Yes — questions land on our forum or via email, weekday or weekend. We've actually wired up most of what we sell.

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