Preformed Solder Bumps Strip Lead-Free Solder Bars

Product Description

Lead-free solder
Sn-0.7Cu alloy
The Sn-0.7Cu alloy is a eutectic alloy of Sn and Cu, and the eutectic temperature is 227°C. Generally speaking, the working temperature of Sn-0.7Cu alloy for wave soldering is about 245-260℃, and users can also make appropriate adjustments according to the equipment and process conditions used.

Sn-0.7Cu solder advantages:
●High strength and anti-drop performance, with good mechanical properties and solder joint reliability

●Low sensitivity to impurity elements, stable performance and easy recovery, more in line with environmental protection requirements

●Suitable for various welding processes: wave soldering, tin furnace tin plating process, etc.

●Pb-free alloy without silver, with lower cost.

SAC305 Solder Advantages
The yield is better than SAC0307, and the bridging resistance is better than Sn/Cu0.7 alloy; very good fluidity reduces the bridging level;
●The typical wetting speed is 0.65sec, which is equivalent to 0.75sec of SAC0307, far better than Sn/Cu0.7 alloy;
●High purity, low oxide, low tin dross generation;
●Good solderability; fast wetting speed; higher yield,
●Compatible with various fluxes.
●Thermal cycle performance

Lead-free alloy type

Other solder alloys are available upon request.

Advantage

Strong antioxidant capacity
Good liquidity and sufficient volume
Easy to use and no cleaning
High-purity metal raw materials

Be applicable

It is used for PCB circuit boards, metal shells, metal-glass packages, semiconductor integrated circuits, filter devices, microwave devices, high-power devices, connectors, sensors, and metal shells or ceramic shells for hermetically sealed packaging of optoelectronic devices.

Generally divided into:

Standard Type: 0.025mm, 0.05mm

Thinner: 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm

Thicker type: 0.5mm-1.0mm

Thickened type: 1.0mm or more

Width: generally about 50mm

For example: 50*0.05mm, which means the width is 50mm and the thickness is 0.05mm.

Tip: Other thicknesses and widths can be customized according to customer requirements

Packaging and Shipping

Packing Details : Carton and wooden box packaging

Delivery Details : 5-10 days(Negotiated and decided on a case-by-case basis)

FAQ

1.Are you trading or manufacturer ?
We are company,and we have our own factory

2.How long is your delivery time?

3.Do you provide samples ? is it free or extra ?
Yes, we could offer the sample for free charge but do not pay the cost of freight.
If you have another question, pls feel free to contact us