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Isolation distances inside innoswitch.

Posted by: zszczucki on

Hello!!
Could I get an information about the physical distance between the primary and secondary circuit inside the INNOSWITCH family.
This information is necessary for the assessment of explosion safety of the devices we design.

Best Regards
ZSzczucki

コメント

Submitted by PI-ODO on 03/20/2018

Hi Zszczucki,

For the InnoSwitch eSOP-R16B package, the creepage distance between primary to secondary domains is 9.7mm min. For the InnoSwitch3 inSOP-24D package, the creepage distance is 11.5mm min.

-PI-ODO

Submitted by zszczucki on 03/21/2018

HI!
Thanks for rapid reply, but I'm interested in the distance inside sealed devices through solid insulation. Is it possible to get this information???

Best regards
ZSzczucki

Submitted by PI-ODO on 03/21/2018

Hi ZSzczucki,

Internal package construction details are proprietary, but perhaps it would help you to know that the DTI (distance through insulation) for the InnoSwitch is >0.40mm, and a high-grade, high-voltage insulating mold compound is used (i.e. voltage breakdown > 18,000V/mm). As such, the isolation voltage is >4000Vac per the datasheet.

-PI-ODO

Submitted by Easy Peasy on 03/21/2018

Ex ia requires 1mm or greater thru solid insulation ... only few opto couplers actually give this

Submitted by zszczucki on 03/22/2018

Hi!
Thanks!
This is the information I needed.

Best Regards

ZSzczucki