RS PRO 0.71mm Wire Lead solder, +183°C Melting Point

Technical Reference
Legislation and Compliance
Non Compliant
COO (Country of Origin): US
Product Details

RS PRO Colophony-Free Tin/Lead Solder Wire

From the trusted RS PRO brand, this solder wire stands apart due to its colophony-free formulation, making it ideal for those who are sensitive to the rosin fumes that are traditionally found in solder flux.

The flux formulation of this solder wire is ideal for wetting common Printed Circuit Boards (PCBs) and components and leaves behind a clear residue that can be removed with dry brushing for a cleaner look or safely left on the PCB after soldering.

Feature and Benefits

• Versatile soldering wire that can be used for a wide range of soldering tasks
• Alloy used consists of 60% tin and 40% lead
• Melting point between 183-188°C
• Low odour formulation with 1.1% flux content
• Soldering iron typical tip temperature for this solder wire is 320-360°C


Solder is used alongside soldering irons, particularly in securing electrical components to integrated circuit boards. The solder melts easily when heated, and cools quickly, meaning it can be moulded to secure components in place in solder joints. The quick setting nature of solder means it can also be used for light brazing.

Because of its relatively low melting point, solder can be reworked easily by heating it to melting point and using a solder sucker to remove it.

Solder is commonly used with SMD and through-hole components, with applications in repair, prototyping and production.

What are the differences between lead-free solder and leaded solder?

Lead-free solder is generally regarded as having a more positive environmental impact than leaded solder, and also as being safer for human use. However, lead-free solder also has potential production advantages. Lead-free solder can offer better lead spacing, which makes it more suitable for high-density components where pitches are tight. This means potentially better performance where space saving is a concern.

The advantages of lead solder are that it has a lower melting point, which is sometimes preferable for hand working components. Also, lower working temperatures reduces the risk of damage to components and circuit board.

Unlike lead-free solder, lead solder does not have a shelf-life and is less prone to losing quality after prolonged exposure to oxygen. However, many electronic application requirements exclude the use of lead solder, due to the toxicity of lead.


RS PRO aims to be your go-to brand for reliability and value for money. We source great parts at great prices and test everything with our in-house experts to ensure the quality you need.

When it comes to tools, we know that versatility and dependability are what you need. As such, we stock a variety of mainstay and specialist tools to suit any application. Whether you're a professional electrician, technician, engineer or home inventor, RS PRO is here to support you.


The presence of lead in this product makes it imperative that users read the Manufacturer Safety Data Sheet (MSDS) before use and wash their hands after every use.


Conforms to J-STD 006.
Flux classification per J-STD 004 is ORL0.


  • Formulation contains lead which makes this solder wire unsuitable for soldering RoHS compliant products.
Attribute Value
Wire Diameter 0.71mm
Percent Lead 40%
Product Form Wire
Melting Point 183°C
Percent Tin 60%
Flux Type Colophony Free- ORL0
Product Weight 250g
Flux Content Percent 2 → 4%
284 In stock - FREE next working day delivery available
Price Each
£ 11.36
(exc. VAT)
£ 13.63
(inc. VAT)
Per unit
1 +
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