Currently, UL, IEC, CSA and DIN mechanism have no uniform standard in determining the terminal product power and performance specifications. Users need to understand the differences between UL and IEC specifications. On the making of Europe terminal product specifications using the IEC standard, while in the United States of America manufacturing products using the standard UL.

 

With the globalization, the need design is in a global sales system, so the system designers have become more and more frequent use of produced in other countries the power terminal product. Since the European nominal value measurement method, therefore the device in the design below the nominal value in use in Europe is common practice. However, many American designers are not familiar with this concept, if not understand the differences between standard, in the design process will be difficult.

 

The choice of devices, often be overlooked is another factor to products used by the terminal technology. Most power terminal products are still in use through hole connections. This method may be needed to provide mechanical support, and can ensure that the multilayer circuit board with embedded in the power supply layer remains solid electrical contact. And to be used for terminal connected to the circuit board pin has a variety of different types of. Some companies provide only a single pin type, others provide multiple pin product. Multiple pin product advantages: it can make the current more evenly distributed to the circuit board wiring, provide more reliable mechanical stability and improve welding firmness.

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