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What is a SAC alloy?

What is a SAC alloy?

DESCRIPTION. SAC Alloys are the leading alloys replacing tin-lead solders for electronic assembly applications. These alloys have proven to perform well in surface mount, wave soldering, and hand soldering applications. SAC Alloys may be used with existing equipment, processes, coatings, and flux chemistries.

What is SAC387?

Product Description. LINQALLOY SAC387 Solder Spheres are Pb-free Tin/Silver/Copper Sn95. 5Ag3. 8Cu0. 7 Industry standard solder spheres for BGA and CSP components used by companies who have made the transition to Lead-free (Pb-free) soldering.

What is SAC305?

SAC305 is a lead-free alloy that contains 96.5% tin, 3% silver, and 0.5% copper. This alloy falls under the JEIDA recommendation for lead-free soldering. When used in wave soldering, AIM’s SAC305 bar solder offers far superior fluidity as compared to other alloys and makes of bar, resulting in excellent flow.

What is SAC405?

LINQALLOY SAC405 solder Spheres are lead-free Tin/Silver/Copper alloys that contain 95.5% Tin (Sn), 4% Silver (Ag), and 0.5% Copper (Cu) and is often written as Sn95.

What is SAC in solder paste?

The acronym SAC stands for the elements SnAgCu (tin, silver, and copper) of which the alloy consists. SAC alloys are the most commonly used alloys in electronics production.

How strong is lead-free solder?

A: Lead-free solder has a higher melting point, which makes it harder to work with – it’s 217C for lead-free compared to 183C for lead alloys.

What is eutectic solder?

The words eutectic solder describe a solder alloy that melts and freezes at one single temperature. A good example of this is Tin 63% / Lead 37% solder which melts and freezes at 183 °C. This melting point is much lower than the melting points of either pure metal which are 232 °C (tin) and 327 °C (lead).

What is SAC105?

LINQALLOY SAC105 Solder Spheres are lead-free Tin/Silver/Copper alloys that contain 98.5% Tin (Sn), 1% Silver (Ag), and 0.5% Copper (Cu) and is often written as Sn98.

Is lead solder illegal?

Since the Safe Drinking Water Act Amendments of 1986 the use of lead-containing solders in potable water systems has effectively been banned nationwide. The major impact of the Act has been on solder containing 50% tin and 50% lead (50-50), until then the most widely used solder for drinking water systems.

Is eutectic solder better?

Eutectic solder flows much better than non-eutectic solder. Eutectic lead-free solders are made up of alloys that are less expensive to manufacture. When the solder melts and freezes rapidly the quality of the solder joint is good.