Yixing Dingfan New Energy Technology Co., Ltd
| Payment Terms | T/T, L/C |
| Supply Ability | 100 tons per year |
| Delivery Time | 5-8 workdays |
| Packaging Details | Standard Export Package |
| Name | Preformed Solder Bumps |
| Advantage | Good solderability |
| shape | strip |
| Custom processing | yes |
| melting point | Low |
| Features | Strong antioxidant capacity |
| Brand Name | Dingfan |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T, L/C | Supply Ability | 100 tons per year |
| Delivery Time | 5-8 workdays | Packaging Details | Standard Export Package |
| Name | Preformed Solder Bumps | Advantage | Good solderability |
| shape | strip | Custom processing | yes |
| melting point | Low | Features | Strong antioxidant capacity |
| Brand Name | Dingfan | Place of Origin | China |
| High Light | Preformed Bar Solder Lead Free ，Bar Solder Lead Free Good Solderability | ||
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
| alloy composition | melting point(℃) | proportion | use | ||
| solidus | liquidus | (g/cm3) | |||
| 1 | Sn-Cu0.7 | 227 | 227 | 7.32 |
Dip Soldering, Wave Soldering |
| 2 | Sn-Ag0.3-Cu0.7 | 217 | 228 | 7.33 | |
| 3 | Sn-Ag3.0-Cu0.5 | 217 | 218 | 7.40 | |
| 4 | Sn99.95 | 232 | 232 | 7.28 | Wave Soldering Addition to Reduce Copper Content |
| 5 | Sn-Ag3.5 | 221 | 221 | 7.37 | |
| 6 | Sn-Sb5 | 240 | 245 | 7.25 | |
| 7 | Sn-Bi58 | 138 | 138 | 8.54 | low temperature welding |
| 8 | Sn-In52 | 118 | 118 | 7.3 | low temperature welding |
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?
| Quantity(kilograms) | 1 - 500 | >500 |
| Est. Time(days) | 10 | To be negotiated |
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
Company Details
Business Type:
Manufacturer
Employee Number:
50~100
Ecer Certification：
Verified Supplier
Located in the Yangtze River Delta, the beautiful coast of Taihu Lake with convenient traffic, Yixing Dingfan New Energy Technology Co., Ltd.is a professional customized manufacturers specialized in development, production and sales of lithium batteries, copper bar, aluminum bar and bus bar of power... Located in the Yangtze River Delta, the beautiful coast of Taihu Lake with convenient traffic, Yixing Dingfan New Energy Technology Co., Ltd.is a professional customized manufacturers specialized in development, production and sales of lithium batteries, copper bar, aluminum bar and bus bar of power...
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