Solder Pastes

Solder paste is a type of solder used when manufacturing PCBs to connect surface mount components to pads on the board. The paste is a mixture of small solder spheres with flux.
The paste initially adheres components in place because of its stickiness. You then use heat to melt the paste to form a mechanical bond and an electrical connection.
Solder paste is applied to the board by stencil printing and the components are put in place by a pick and place machine or by hand.
Why use a solder paste?
Defects in circuit-board assembly are caused due to issues in the solder-paste printing process or due to defects in the solder paste. This can give short circuits, incomplete circuits, and head on pillow defects.
How to use Solder paste
• Remove oil, grease, polishing compound and any excessive oxides from the joint. Make sure that the joint is smooth, flat and free from any burs.
• Apply the solder paste to the top joint. The paste will not fill large gaps so make sure that the pieces to be soldered actually touch.
• Apply heat to the piece away from the joint, keep the heat source moving too prevent overheating the paste.
• Once the paste flows remove the heat source

Typical Applications
Solder pastes are used in mass production of PCBs and prototype PCB assembly.

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Omschrijving Prijs Lead Free Trade Name Package Type Package Size
RS-stocknr. 146-6202
FabrikantnummerSMDLTLFP50T3
FabrikantCHIPQUIK
21,42 €
Each
Aantal stuks
Yes - Jar 50g
RS-stocknr. 146-6191
FabrikantnummerSMD291AX50T3
FabrikantCHIPQUIK
13,45 €
Each
Aantal stuks
- - Jar 50g
RS-stocknr. 146-6196
FabrikantnummerSMD291SNL50T3
FabrikantCHIPQUIK
17,75 €
Each
Aantal stuks
Yes - Jar 50g
RS-stocknr. 146-6187
FabrikantnummerSMD291AX
FabrikantCHIPQUIK
14,32 €
Each
Aantal stuks
- - Syringe 15g
RS-stocknr. 146-6201
FabrikantnummerSMDLTLFP250T3
FabrikantCHIPQUIK
67,31 €
Each
Aantal stuks
Yes - Jar 250g
RS-stocknr. 146-6190
FabrikantnummerSMD291AX250T3
FabrikantCHIPQUIK
40,70 €
Each
Aantal stuks
- - Jar 250g
RS-stocknr. 146-6200
FabrikantnummerSMDLTLFP10T5
FabrikantCHIPQUIK
33,04 €
Each
Aantal stuks
Yes - Syringe 35g
RS-stocknr. 146-6195
FabrikantnummerSMD291SNL250T3
FabrikantCHIPQUIK
53,55 €
Each
Aantal stuks
Yes - Jar 250g
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Description:
Solder Paste no clean 63Sn/37Pb in 10cc Syringe T5 mesh. Printing speeds up to 100mm/secLong stencil lifeWide process windowClear residueLow voidingExcellent wetting compatibility on most board finishesDispense gradeCompatible with enclosed print headsPasses BONO test.
Solder Paste in jar 250g (T3) Sn63/Pb37 no ...
Description:
Solder Paste in jar 250g (T3) Sn63/Pb37 no clean 90.25% metal. Printing speeds up to 100mm/secLong stencil lifeWide process windowClear residueLow voidingExcellent wetting compatibility on most board finishesPrint gradeCompatible with enclosed print headsPasses BONO test.