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Creepage Distance of Digital Isolator

Other Parts Discussed in Thread: ISO7820

Hello Team,

Customer is looking for the digital isolator as below.

  • VISO = more than 3000Vrms
  • Clearance, L(101) = more than 6.4mm
  • Creepage-distance, L(102) = more than 9.6mm

However, the creepage distance of ISO7820 is 8.0mm. 

Is there the digital isolator which has creepage distance of more than 9.6mm?

Otherwise, could you tell me how to extend effective creepage distance?

Best Regards,

Hidetoshi Matsunami

  • Hi Matsunami-san,

    We don't have a released device with >9.6mm creepage package but we have a new package in development with >9.6mm Creepage. For details on the new package, please contact your Sales / Distribution representative directly.

    The other option that some of our customers use is potting or hermetically sealing the package and this can compensate for smaller creepage packages.