Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations waross on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by vitormt

  1. vitormt

    Fuse/Diode sizing for rev. polarity protection

    What about a 1.25A fuse in series with the positive supply terminal? You can use the Belfuse 5MF1.25. After the fuse, in parallel with the supply terminals, I would use a 1N6283A tranzorb.
  2. vitormt

    Fuse/Diode sizing for rev. polarity protection

    The fuse has to have a current rating beetwen 1.2 and 1.5A. It can be a one-time-use fuse or a resettable fuse. The blow time should be as fast as possible, so that you do not damage the AC/DC wall wart. For the diode, I sugest that you use a unidirectional tranzorb, brecause it protects your...
  3. vitormt

    CE Risk Analysis

    Regarding the level of immunity required of our product and the environments it will be placed, we are trying to comply with class A. My major doubt was about the risk assessment. I´ve never seen a risk assessment in my life, so I don´t know how to start doing it. I believe I will have to make a...
  4. vitormt

    CE Risk Analysis

    Hi sed2developer , First of all, thanks for the reply. I read the info you pointed, and I could understand that the need of risk assessment depend on the directives that the equipment has to comply. My equipment is a portable (battery powered) data collector, and it has to comply with the three...
  5. vitormt

    CE Risk Analysis

    Hi everyone. I know that one of the steps in CE Certification is to elaborate a Technical File, and I´ve heard that this file has to contain a Risk Analysis, but I couldn´t find any information about it. Does anyone know what is this Risk Analysis? What kind of information should it contain...

Part and Inventory Search