It is the eutectic point of 63/37 tin-lead — the alloy melts and freezes at a single temperature with no pasty stage. That sharp transition is what gives a clean joint.

Do I still need separate flux?

For rework, yes. The core flux burns off in the first instant of contact, so lifting a chip or drawing solder with wick needs flux from a bottle as well.

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2UUL Soldering Wire 183°C 100M 50g

Name: 2UUL Soldering Wire 183°C 100M 50g
Brand: 2UUL
SKU: 2UUL-C100M
Price: 950 PKR
Availability: InStock

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Flux-cored solder wire with a 183°C melting point — 100 metres on a 50 gram spool.

Rs 950

Flux-cored solder wire with a 183°C melting point — 100 metres on a 50 gram spool. 183°C is the eutectic point of 63/37 tin-lead: the alloy goes straight from…

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Flux-cored solder wire with a 183°C melting point — 100 metres on a 50 gram spool.

183°C is the eutectic point of 63/37 tin-lead: the alloy goes straight from solid to liquid with no pasty intermediate stage. That sharp transition is what produces a clean joint rather than a grainy one, and it is why 183°C is the everyday default on a repair bench.

A hundred metres in 50 grams tells you how fine the wire is, which is exactly what board work wants — thicker wire delivers far more solder than a fine pad needs.

Key features

183°C eutectic melting point
100 m on a 50 g spool — fine gauge for board work
Flux-cored for clean wetting

What this is used for

Component soldering
Jumper wire attachment
Connector and pad work

Who it's for

Micro-soldering technicians.

Manufacturer description

Flux-cored solder wire with a 183°C melting point — 100 metres on a 50 gram spool. 183°C is the eutectic point of 63/37 tin-lead: the alloy goes straight from solid to liquid with no pasty intermediate stage. That sharp transition is what produces a clean joint rather than a grainy one, and it is why 183°C is the everyday default on a repair bench. A hundred metres in 50 grams tells you how fine the wire is, which is exactly what board work wants — thicker wire delivers far more solder than a fine pad needs. • 183°C eutectic melting point • 100 m on a 50 g spool — fine gauge for board work • Flux-cored for clean wetting Compatible with: Phone logic board soldering.