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Qualitek 618D lead free solder paste syringes

From £29.16 £24.30
Please Allow 3 - 4 days for Dispatch
Only %1 left
MPN: 618D

A lead-free solder paste in a syringe for easy hand or dispensing equipment application. Ideal for prototype or small volume SMT component soldering.



Alloy: Tin 96.5% Silver 3% Copper 0.5%
Metal Content: 86%
Flux: No Clean (ROL0)
Recommended needle gauge: Type 3 (Gauge 23), Type 4 (Gauge 25)
Bellcore compliant
Pin testable post-solder residues

Standard Delivery

Usual shipping within 2-5 days

A lead-free solder pastes available in a syringe for easy dispensing when soldering SMT components of printed circuit boards. The Qualitek 618D is a SAC305 Tin Silver Copper standard solder paste lead-free alloy combined with an excellent no-clean flux.

Excellent wetting and tack life

Available as a Type 3 and Type 4 powder size

No cleaning required

Available with a piston and plunger for hand dispensing or without for automatic dispensing machines


FAQ - I'm unsure of the difference in a Type 3 solder paste and a Type 4 solder paste. Are different pastes used for different surface mount component soldering?

Solder paste types are based on the solder powder carefully graded to produce a powder with a predominant particle size. A Type 3, which is probably the most common size, is used for fine-pitch components at or above 0.5 mm (0.020') pitch. It has >80% particle size of 25 - 45 um. AType 4 solder paste is typically used for fine-pitch components below 0.5 mm (0.020') pitch and is made up of >90% of 20 - 38um powder particles.

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