Siggi,
IPC-A-610C
defines Class I, II & III as follows.
Class I-- General Electronic Products
Includes consumer
products, some computer peripherals suitable
for applications where
cosmetic imperfections are not important
and the major
requirement is function of the completed electronic
assembly.
Class II-- Dedicated Service Electronic
Products
Includes communications equipment, sophisticated business
machines,
and instruments where high performance and extended
life is required and
for which uninterrupted service is desired but not
critical. Certain cosmetic
imperfections are allowed.
Class III-- High Performance Electronic
Products
Includes the equipment and products where continued performance or
performance-on-demand is critical. Equipment downtime cannot be
tolerated
and must function when required, such as in life
support items or flight control
systems. Assemblies in this class are suitable for
applications where high
levels of assurance are required, service is essential, or the end-use
environment
may be uncommonly harsh.
Paragraph 1.4.2
also states:
The
customer has the ultimate responsibility to identify the class to
which
the
assembly is evaluated. Thus, accept and/or reject decision must be
based
on applicable
documentation such as contracts, drawings, specifications,
standards
reference
documents.
Barry.
-----Original Message-----
From: Zweigart, Siegmund [mailto:[log in to unmask]]
Sent:
Thursday, February 14, 2002 7:29 AM
To: [log in to unmask]
Subject: [TN]
Class 1 to 3
Hello
Is it possible to find the definition of
class1 2 and 3 in the
internet?
Thanks
Siggi
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