Solder Pastes | Soldering Paste Syringe | RS
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    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. Defects in the 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 to prevent overheating the paste. Once the paste flows to remove the heat source.

    Typical Applications for Solder Paste

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

    28 產品顯示為 Solder Pastes

    MG Chemicals
    Lead Free
    -
    Jar
    50g
    CHIPQUIK
    Lead Free
    SMD291SN
    Tub
    50g
    CHIPQUIK
    -
    SMD291AX
    Tub
    250g
    MG Chemicals
    Lead Free
    -
    Syringe
    9.8g
    CHIPQUIK
    -
    SMD291AX
    Syringe
    35g
    CHIPQUIK
    Lead Free
    SMD291SN
    Syringe
    35g
    MG Chemicals
    Lead Free
    4902P T3
    Syringe
    15g
    CHIPQUIK
    Lead Free
    SMD291SN
    Syringe
    35g
    Loctite
    -
    Loctite MP 218
    Jar
    540g
    CHIPQUIK
    -
    SMD291AX
    Syringe
    35g
    MG Chemicals
    Lead Free
    4902P T3
    Syringe
    25g
    CHIPQUIK
    Lead Free
    SMD LTLF
    Syringe
    35g
    CHIPQUIK
    -
    SMD291AX
    Tub
    50g
    CHIPQUIK
    Lead Free
    SMD LTLF
    Tub
    50g
    Loctite
    Lead Free
    Loctite HF212 SAC0307 AGS
    Tub
    500g
    Multicore
    -
    RA10
    Syringe
    25g
    CHIPQUIK
    Lead Free
    SMD291SN
    Tub
    250g
    CHIPQUIK
    -
    SMD291AX
    Syringe
    15g
    CHIPQUIK
    Lead Free
    SMD291SN
    Syringe
    15g
    CHIPQUIK
    -
    SMD4300AX
    Syringe
    35g
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