Hi Ron,

I think I am using the same part.  Is it the isoloop part?
That part is good for 2.5 kV for one minute.  We plan to do
humidity soak and dielectric tests to show that the basic
insulation of the part is adequate for 601-1.  I have also
talked to the vendor to get the part UL2601 listed.  There
are several other medical customers using the part.  The
device is built to the same requirements/specs as the opto
isolators so I have good feeling it is OK for our
application (60601-1).  Just be aware that some of the parts
don't quite meet the 30 kV/uS transient immunity spec. and
they do not spec the magnetic immunity.  As you know, 3 A/m
is required by 601.  They jitter like crazy when you bring a
50/60 Hz field next to them.  What freq. will you be running
them at?  They have higher immunity at 5 Volts supply
voltages.


Jim

-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of Ron
Sent: Wednesday, May 01, 2002 2:49 PM
To: EMC
Subject: non 601 approved isolating component


I need to use an isolating device between a sip/sop and an
applied part (BF)
requiring 1500V isolation (Basic(250)).  I plan on using a
digital isolator,
but the component does not have IEC601 approval.  The
component does have
2500V isolation and 8 mm creepage.

Questions:

1) When our product is submitted for IEC601 certification,
how does the use
of the non 601 approved part affect the investigation?

 2) Does the investigator need the schematic for that
component?  What if
the schematic is not available?

 3) If the component already has other approvals (UL1950 or
UL1577).  How
does this affect the approval process?

Thanks in advance.

[email protected]


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