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Name:Lead Free Solder Bar Sn99Ag0.3Cu0.7 SAC0307
Name:Lead Free Solder Bar Sn99Ag0.3Cu0.7
Alloy:Tin Silver Copper
Composition:Sn99Ag0.3Cu0.7
Form:Bar / Stick
Origin:China

Product Description

Lead Free Solder Bar Sn99Ag0.3Cu0.7 SAC0307


In the lead free solder bar family we majorly have 3 types: Sn99Ag0.3Cu0.7, Sn96.5Ag3.0Cu0.5, Sn99.3Cu0.7. The first two types of solder bars contain precious metal silver, while the 3rd one is without silver. The code Sn99Ag0.3Cu0.7 represents that in this alloy 99% is tin, 0.3% is silver and 0.7% is copper. This alloy comparing to SAC305, composition is same just the percentage of silver and copper is different. The more silver inside, the more expensive the solder bar is.


Characteristics of Lead Free Solder Bar Sn99Ag0.3Cu0.7 SAC0307

  1. The alloy Sn99Ag0.3Cu0.7 is Lead free (Pb free), so it can be used for applications that requires components to comply with ROHS regulations. 

  2. Melting point of bar solder Sn99Ag0.3Cu0.7 SAC0307 is at 217 to 225℃, which is a bit higher than SAC305 but lower than SACX07. Working temperature should be around 270℃.

  3. Silver has very good electrical conductivity, that's the reason why the alloy contains silver. Adding silver is to increase the electical conductivity of the solder bar, thus if we comparing it to SACX07, this alloy Sn99Ag0.3C0.7 has this advantage.

  4. Compring to high silver alloy SAC305, the Sn99Ag0.3Cu0.7 is about 40% cheaper in cost, but in a certain sense, it still keeps reasonable good conductivity. Definitely in high end applications, where superb electrical conductivity is required, it's more reasonable to use the high silver SAC305 bar solder, but in most cases, for the general soldering purpose, the SAC0307 is already quite good enough. Still we keep saying the same words: the most proper is the best, no the most expensive one.


Extra information of Lead Free Solder Bar Sn99Ag0.3Cu0.7

The third party labs such as SGS, TUV, Intertek all have abilities to conduct the testing on the lead free solder bar to check if it confirms with ROHS regulations, thus, ask from your supplier the related ROHS reports on the SAC0307 solder bar without hestiation. Some suppliers have their own spectrum analyser making themselves able to do in-house checking of the solder bar composition.


If you're looking for buy the Lead Free Solder Bar Sn99Ag0.3Cu0.7, contact our sales team at Email: xfsolder@gmail.com or xfsolder@163.com, Whatsapp or Wechat at 008613450770997, main website www.xfsolder.com 

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