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highly-rated enig rohs carbon manufacturers for wholesale

highly-rated enig rohs carbon manufacturers for wholesale
  • highly-rated enig rohs carbon manufacturers for wholesale

highly-rated enig rohs carbon manufacturers for wholesale

A-TECH enig rohs has passed Electromagnetic Compatibility (EMC) testing. This typical testing program consists of various emissions, susceptibility, and immunity requirements, in addition to electrostatic discharge testing, surge testing, and possible on-site evaluations. Coated with a protective layer, the product is anti-rust
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Immersion Tin, or Chemical Tin, it’s a RoHS Compliant metallic finish deposited by a chemical displacement reaction that is applied directly over the basis metal of the circuit board, the immersion Tin protects the underlying copper from oxidation over it’s intended shelf life, copper and tin however have a strong affinity for one another, the diffusion of one metal into the other will occur inevitably, directly impacting the shelf life of the deposit and the performance of the finish. The negative effects of tin whiskers growth are well described in industry related literature and topics of several published papers.

The typical thickness of Immersion Tin is ≥1.0UM and the shelf life is 6 months. The cost of Immersion Tin is more expensive than HASL but less expensive than Immersion Gold PCB and close to Immersion Silver. Similar to Immersion Silver, Immersion Tin is also sensitive in handling and storage, it requires PCB manufacturers to control and pack PCBs with Imm Tin more carefully.



The advantages of Immersion Tin

● Excellent flatness
● Mid range cost for lead free finish
● Good for fine pitch / BGA / smaller components
● Top choice for press fit technology
● Reworkable



The disadvantages of Immersion Tin

● Very sensitive to handling – gloves must be used
● Exposed Tin on final assembly can corrode
● Not good for multiple reflow/assembly processes
● Aggressive to soldermask – soldermask dam should be more than 5mil
● Baking prior to use can have a negative effect



A-TECH is capable of using Immersion Tin, we make the profile and electrical test before the process of Immersion Tin finish, and we use papers to separate each piece of boards to avoid scratches during package and transportation.




The manufacturing of A-TECH enig rohs complies with electric industrial standards. All its parts, including wires and cords, plug, and circuit board are manufactured to adapt to the local electricity supply system. Coated with a protective layer, the product is anti-rust
The design of A-TECH enig rohs resorts to different technologies. Take its print circuit board as an example, it is designed using CAD, CAM, and light painting technology by the technicians. Its surface can be treated with different methods such as nickel plating, tin plating, gold plating, etc
A-TECH enig rohs has to pass a series of tests. They include mechanical strength test, resistance to heat and fire test, overload protection test, etc. With hardened steel housing, it has improved durability and reliability
A-TECH enig rohs meets the requirements of energy efficiency standards. It is compatible in the USA, the EU, and China, including minimum energy performance standards (MEPS) and class-average standards. The product is widely accepted for its resistance to splitting
A-TECH enig rohs is developed with the help of advanced solar technology. It adopts the comprehensive technical system which specially caters to the working principle of solar power generation. Fatigue resistance and wear resistance make the product be highly recognized in the metal industry
The product has enough hardness. It can effectively resist scratching due to the friction or pressure from a sharp object.
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