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TPD2E007: Want to protect 9kV ESD on RS485-devices.

Motoyasu Hattori
Genius 11095 points
Part Number: TPD2E007
Other Parts Discussed in Thread: STRIKE

Hi,

To protect RS485 devices, TPD2E007 is one of candidate device. His requirement is to protect 9kV ESD, but TPD2E007 is protected 8KV ESD.  If he uses TPD2E007 with 9kV ESD, what is happened?  ( Is TPD2E007 broken?  Or By 8kV ESD, TPD2E007 is protected, but is still roughly 1kV ESD NOT protected? )

Also, If you have any other recommended devices, please let us know.

Thanks and best regards,
M.HATTORI.

  • 0
    TI__Intellectual 2694 points

    Hi Motoyasu-san,

    Matt from our team will respond once back to office. Thank you for the patience.

    Regards,

    Sandesh

  • 0
    TI__Genius 9906 points

    Hi Motoyasu-san,

    If TPD2E007 experiences a 9 kV IEC strike, it will break. Unfortunately, TPD2E007 is currently our only 13 V ESD protection device. Do you see this 9 kV requirement often for RS-485? Also what is the customer's application/end equipment? 

    Regards,

    Matt Smith 

  • +1 in reply to Matt Smith
    TI__Genius 11095 points

    Hi, Matt-san,

    Thank you for your reply.

    My customer wants to pass "9kV pulse from air discharge", NOT on contact.  Do you think passing it by TPD2E007 or broken?   If still broken, please let us know the recommended devices.

    He wants to use common RS485 devices for interoperability, but this devices are old and supported only 3kV ESD.  That is why I am asking.

    Thanks and best regards,
    M.HATTORI.  

  • +1 in reply to Motoyasu Hattori
    TI__Prodigy 340 points

    Hi Motoyasu-san,

    If your customer wants to pass 9kV IEC air discharge, then, the TPD2E007 is a suitable device for them. 

    The TPD2E007 supports ±15-kV IEC 61000-4-2 Air-Gap Discharge and will not break with a 9kV air-discharge strike.

    Please let me know if you have additional questions.

    Thank you,

    Erika