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DCP010505B: Follow-Up Question: Dielectric Isolation Burr-Brown Specification

Part Number: DCP010505B

Understand that the DCP01 Series  is good for 1KVrms for up to 60 seconds per the UL1950 test only.  However, is the reason behind the continuous voltage change to 60VDC across the barrier due to the fact that life testing is no longer conducted for this part?  The old Burr-Brown specification said that the 1KV continuous voltage was based on life  test data.  I've inserted  the old  specification.  Is this the reason why additional clarity into the specification was provided in the specification sheet?3173.DCP0124.pdf

  • Hello Dan,

    I have reached out to our team members and will get back to you as soon as possible.

    Regards,
    Alejandro

  • Hi Dan,

    The Burr-Brown specification for the product was updated to provide the isolation limits more clearly. Customers were reading the older data sheet as the component being able to withstand of 1-kVrms indefinitely. That is not the case.

    The "Life Test data" was described to us as being a continuous stressing of the part with the 1-second flash test. It was a series of pulsed testing of a quantity of devices being sent 1-second 1kVrms pulses. How many of the 1-second pulses and duty cycle of the testing is an unknown due to this information was lost when we acquired Burr Brown.

    Today, these devices receive the 1 sec 1kVrms Isolation test as well as parametric final test prior to being packaged and shipped. The 60VDC and 425VAC rating is as accurate today as to early manufacture components.

    Regards,
    Alejandro