Flux Cored Solder

Since SMIC developed its first flux cored solder SPARKLE SOLDER in 1955 in Japan, we have developed a number of flux cored solders for various alloys and applications.

For our ECO SOLDER alloy, SMIC developed a type of flux cored solder with improved wettability, a drawback peculiar to Lead-Free solder.

SPARKLE ESC21

Superior Wettability

With improvement over the ESC's Workability and spattering of solder and flux. ESC21 are newly developed for very good solderbility even lower iron top temp, which makes longer iron tip life. Residue is almost clear and good appearance after soldering.

ECO SOLDER RMA08

High reliability and clear finish

ECO SOLDER RMA08 is highly reliable resin flux cored solder that complies with the former U.S.A. standard, QQ-S-571. It exhibits less solder ball spattering and has a transparent and colorless finish. The flux exhibits corrosion resistance and high insulation characteristics.

ECO SOLDER HVP

Excellent heat-resistant flux cored

Newly improved heat resistant flux cored solder for P.C.B exposed long time to high-temperature. Transparent and clear finish makes good appearance after soldering.

In comparison with conventional products, HVP ensures longer soldering tip service life because it enables lower temperature soldering, thereby minimizing carbide accumulation on the tip.

ECO SOLDER MLB

Laser & light beam processing soldering

Developed for the non-contact heating process (Laser / Light Beam), MLB wire has excellent soldering characteristics while reducing flux splatter and lense contamination issues. A clear color residue resistant to thermal cycle cracking remains post-soldering.

Lead-Free flux cored ECO SOLDER: Specification and Features

	SPARKLE ESC21	ECO SOLDER RMA08	ECO SOLDER HVP	ECO SOLDER MLB
Alloy	Please refer to the ECO SOLDER Products Guide on ECO SOLDER: Introduction page.
Wire diameter	ø 0.3 to 2.0mm
Flux content	3%, 4%	3%, 4%	4%	3%, 4%
Halide Content	0.44%	0.10% or less	0.44%	0.10% or less
Insulation resistance	1 x 1011 Ω over	1 x 1011 Ω over	1 x 1010 Ω over	1 x 1011 Ω over
Spreadability	79% (M705)	75% (M705)	79% (M705)	75% (M705)
Feature	Good workability	Clear finish and high reliablity	Excellent heat-resistant flux	Non-contact heating

*Less than 0.3 dia , are available on request.