
Solder wire · SKU SW-5003
Lead-Free Solder Wire — 0.3 mm
Thin solder wire for controlled dosing on small pads, compact components, and detailed electronics repairs.
$11.99
- 50 g spool
- SAC0307 alloy
- 217–225°C melting range
US shipping only. Orders of $35 or more ship free; a $4.99 shipping charge applies below $35.
Why choose it
Built for controlled bench work.
- Thin 0.3 mm diameter enables controlled solder dosing
- Designed for small pads and compact components
- SAC0307 lead-free alloy
- 2% RMA rosin flux core supports reliable wetting
Recommended uses
Fine-pitch PCB work
Small electronic components
Precision repair and prototyping
Compact circuit-board joints
Product questions
Frequently asked questions
When should I choose 0.3 mm solder wire?
Choose 0.3 mm when you need fine control on small pads, compact components or detailed electronics work.
Is this solder wire lead-free?
Yes. It uses lead-free SAC0307 alloy with a melting range of approximately 217–225°C.
Does it have a rosin core?
Yes. The wire contains a 2% RMA rosin flux core.
Secure checkout
Direct payments are securely processed by Airwallex.
US delivery
Website orders are fulfilled using Amazon MCF inventory.
Order support
Contact sales@viralloy.com for product or order help.