Solder

Solder, or solder wire, is a fusible metal alloy with a low temperature melting point used to permanently join two metals that have a higher melting point. Soldering is a process commonly used in the electronics industry for PCBs and electronics components, jewellery manufacturing and pipework in plumbing, with the majority of soldering carried out through the use of a soldering iron.

Our range of solder wire contains products from industry leaders like Felder Lottechnik, MBO, Multicore, Weller and RS PRO, with a variety of wire diameters (ranging from 0.23mm to 7mm) and lead content (0% to 70%).

What is solder made of?

The alloys used in solder vary depending on the manufacturer and the intended application, as different applications require different materials.

Soft solder is commercially available at varying concentrations of tin, ranging from 5% to 70%. Higher percentages of tin provide greater tensile strength, with a 60/40 balance being a popular composition.

Lead-free solder is also available, created due to the call to remove or reduce hazardous materials in consumer electronics, which often has a lower melting point than lead-based alloys. Lead-free solder wire may contain copper, zinc, tin, silver, bismuth, antimony and/or traces of other materials depending on its intended use.

What is flux?

In order to prevent the oxidation of the metal alloy and ensure a strong electrical connection and high mechanical strength, soldering wire contains a flux, which can be made of different materials. A flux is a chemical agent that will help to reduce metal oxides (return oxidised metals to their original state) and seal out air from the join, preventing any further oxidation.

There are two main types of flux: acid/active, which contains strong acids and is used in plumbing and metal mending, and rosin/passive, which is used in electronics.

What forms of solder are there?

The majority of solder comes in wire form, with a range of wire diameters available to suit various applications and joints. Solder granules are ideal for soldering machines and tinning crucibles, but these small pellets of solder popular for jewellery making too. Paste solder is ideal for use in printed circuit boards (PCBs) and connecting surface mount electronic components. It is a sticky paste which is applied to a board by printing or painting.


...
Read more Read less

Filters

Viewing 141 - 160 of 188 products
Results per page
Description Price Model Number Wire Diameter Percent Lead Product Form Melting Point Percent Silver Percent Tin Flux Type Product Weight Flux Content Percent Percent Copper
RS Stock No. 104-7252
Mfr. Part No.18.601.54037
PHP3,097.19
Each
units
- 1.5mm 40% Wire 183°C - 60% Rosin Based 1000g 2.5% -
New
RS Stock No. 201-3547
Mfr. Part No.51761020 37
PHP2,114.09
Each
units
- 0.75mm - Wire 217° C - - - 250g 3.5% -
New
RS Stock No. 201-3545
Mfr. Part No.51760520 37
PHP2,437.11
Each
units
- 0.75mm - Wire 217° C - - - 250g 3.5% -
RS Stock No. 104-7325
Mfr. Part No.18.721.02037
PHP1,788.28
Each
units
- 1mm 36% Wire 179°C 2% 62% Rosin Based 250g 2.5% -
RS Stock No. 104-7195
Mfr. Part No.18.601.03037
PHP1,694.89
Each
units
- 1mm 40% Wire 183°C - 60% Rosin Based 500g 2.5% -
RS Stock No. 104-7577
Mfr. Part No.20.720.52037
PHP2,130.68
Each
units
- 0.5mm 36% Wire 179°C 2% 62% Rosin Based 250g 3.5% -
RS Stock No. 547-275
Mfr. Part No.SN60 PB CU2 12/10 - 3 CANAUX A11 - 500G
BrandMBO
PHP1,451.32
1 Reel of 500 Gram(s)
Reel(s)
SN60 PB CU2 1.2mm 38% Wire 183°C - 60% Rosin 500g 2% 2%
RS Stock No. 104-7448
Mfr. Part No.20.600.72037
PHP1,100.53
Each
units
- 0.75mm 40% Wire 183°C - 60% Rosin Based 250g 3.5% -
RS Stock No. 136-3149
Mfr. Part No.555294072037
PHP1,470.78
Each
units
555294072037 0.75mm - Wire 227°C - 99.3% Colophony (Rosin) Free 250g 3.5% 0.7%
RS Stock No. 185-0121
Mfr. Part No.291290
BrandMulticore
PHP3,152.29
Each
units
Hydro-x 1.2mm 40% Wire 183-188°C - 60% Halogen Free 250g 2% -
RS Stock No. 551-665
Mfr. Part No.291749
BrandMulticore
PHP2,226.95
1 Reel of 500 Gram(s)
Reel(s)
362 1.2mm 36% Wire 179°C 2% 62% Activated Rosin 500g 3% -
RS Stock No. 104-7533
Mfr. Part No.20.602.02037
PHP929.93
Each
units
- 2mm 40% Wire 183°C - 60% Rosin Based 250g 3.5% -
RS Stock No. 104-7246
Mfr. Part No.18.601.53037
PHP1,294.81
Each
units
- 1.5mm 40% Wire 183°C - 60% Rosin Based 500g 2.5% -
New
RS Stock No. 201-3550
Mfr. Part No.5551941020 37
PHP1,235.62
Each
units
- 0.5mm - Wire 227°C - - - 250kg 3.5% -
RS Stock No. 136-3154
Mfr. Part No.52761020
PHP2,111.22
Each
units
52761020 1mm - Wire 217°C 3% 96.5% Colophony (Rosin) Free 250g 3.5% 0.5%
RS Stock No. 788-3723
Mfr. Part No.T0051388699
BrandWeller
PHP3,436.47
1 Reel of 1
Reel(s)
WSW SAC M1 1mm - Wire 217°C 3% 96.5% Rosin 100g 3.5% 0.5%
RS Stock No. 104-7268
Mfr. Part No.18.602.02037
PHP929.93
Each
units
- 2mm 40% Wire 183°C - 60% Rosin Based 250g 2.5% -
RS Stock No. 555-222
Mfr. Part No.GRENAILLE SN99 AG0.3 CU0.7 - POT 500G
BrandMBO
PHP1,745.09
Each
units
- - - Granules 217°C 0.3% 99% - 500g - 0.7%
RS Stock No. 436-4910
Mfr. Part No.289155
BrandMulticore
PHP2,992.91
Each
units
X39 0.7mm 40% Wire 183-188°C - 60% Activated Rosin Free 500g 1% -
RS Stock No. 788-3720
Mfr. Part No.T0051388899
BrandWeller
PHP3,563.64
1 Reel of 1
Reel(s)
WSW SAC LO 1mm - Wire 217°C 3% 96.5% Rosin 100g 3.5% 0.5%
Related Products
A range of lead-free solders supplied in handy ...
Description:
A range of lead-free solders supplied in handy sized dispensers. The 0.8mm solder wire is quick melting, easy to use, and ideal for use on micro electronics, fine wires, and most other electrical / electronic soldering operations. Lead free Silver ...
Activated No-Clean solder alloy with incorporated resinous flux.Designed ...
Description:
Activated No-Clean solder alloy with incorporated resinous flux.Designed for industrial applications in the electronics and connector industries.Excellent wetting on tin-plated substrates.Generates minimal fumes and residue.Chlorine content: 1.1 %Class: J-STD-004 ROM1.
A tin/lead solder which exhibits a very sharp ...
Description:
A tin/lead solder which exhibits a very sharp (eutectic) melting transition and is ideal for repairs on fabricated boards. Thermal damage to components can be minimised due to lower temperatures5 cores of Ersin® flux.
RA soldering wire with 5 activated colophony cores ...
Description:
RA soldering wire with 5 activated colophony cores with 2.5% F-SW 26 fluxOutstanding wetting and spreading properties, also suitable for difficult solders in electrical engineering and electronicsHigh-purity alloys for reliable solder joints.