What is the difference between HC-03, HC-05 and HC-08?

Only the diameter. HC-03 is 0.3 mm, HC-05 is 0.5 mm, HC-08 is 0.8 mm. Everything else — the alloy, the flux core and the 183°C melting point — is the same.

Which diameter should I buy?

0.3 mm for board work under a microscope, where a thicker wire delivers far more solder than the joint needs. 0.5 mm is the general-purpose choice. 0.8 mm for connectors and anything with real thermal mass.

It is the eutectic point of 63/37 tin-lead — the temperature at which the alloy goes straight from solid to liquid with no pasty stage. That sharp transition is what gives a clean joint.

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Mijing HC-03 / HC-05 / HC-08 High Quality Solder Wire (50g, 183°C)

Name: Mijing HC-03 / HC-05 / HC-08 High Quality Solder Wire (50g, 183°C)
Brand: Mijing
SKU: MJ-HC03
Price: 700 PKR
Availability: InStock

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Rosin-core solder wire on a 50 g spool, in a 60/40 tin-lead composition with a 183°C melting point.

Rs 700

Rosin-core solder wire on a 50 g spool, in a 60/40 tin-lead composition with a 183°C melting point. The model number is simply the wire diameter: HC-03 is 0.3…

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Rosin-core solder wire on a 50 g spool, in a 60/40 tin-lead composition with a 183°C melting point.

The model number is simply the wire diameter: HC-03 is 0.3 mm, HC-05 is 0.5 mm and HC-08 is 0.8 mm. That is the only choice you are making. Fine wire for board work under a microscope, thicker wire where you need to deliver more solder per pass.

Key features

Model number is the diameter — 0.3 mm, 0.5 mm or 0.8 mm
183°C eutectic melting point, rosin core
50 g spool

What this is used for

Jumper wire attachment
Component soldering
Connector and pad work

Who it's for

Micro-soldering technicians choosing wire diameter by task.

Manufacturer description

Rosin-core solder wire on a 50 g spool, in a 60/40 tin-lead composition with a 183°C melting point. The model number is simply the wire diameter: HC-03 is 0.3 mm, HC-05 is 0.5 mm and HC-08 is 0.8 mm. That is the only choice you are making. Fine wire for board work under a microscope, thicker wire where you need to deliver more solder per pass. • Model number is the diameter — 0.3 mm, 0.5 mm or 0.8 mm • 183°C eutectic melting point, rosin core • 50 g spool Compatible with: Phone logic board soldering and general electronics work.