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mil part reliability terms

J

Jimmy

Jan 1, 1970
0
Does anybody have any good links to web sites that describe the differences
between 883, SMD, JAN, JANTX, etc for the various classes of high
reliability parts ? Can anybody reply with a quick summary of their
differences ?
 
T

tlbs

Jan 1, 1970
0
Jimmy said:
Does anybody have any good links to web sites that describe the differences
between 883, SMD, JAN, JANTX, etc for the various classes of high
reliability parts ? Can anybody reply with a quick summary of their
differences ?

MIL-STD-883 is basically a guide to quality testing procedures for
integrated circuits. If a manufacturer performs the tests described in
883 to semiconductors off the manufacturing line (and the components
pass the tests), they may be marked as 883 components. Because of the
extra testing of each component (not statistical-based tests) the
components are shipped with a known higher quality (and thus implied
reliability) than the equivalent commercial components. For example:
you know that an 883 component will probably not fail the first time
you heat it up to a Tj of 125 degC. because it has already experienced
that level of stress for a known period of time.

JAN, JANTX, JANTXV, and JANS are quality levels for discrete
semiconductors. The manufacturer's processes and post-production
testing allow these components to be marked with the various quality
levels. The order given indicates higher levels of screening and
testing, the highest being 'S' or 'space' quality.

SMD stands for Standard Military Drawing. It is a relatively recent
development, simply used to standardize component data sheets. For
example: several manufacturers make part 'X' (sometimes with the same
die), and all have their own data sheets, with their own particular
formats, information, etc. The SMD drawing takes all of the
information that is important to the circuit designers and analysts and
puts it in a common format.
 
J

Jon

Jan 1, 1970
0
One clarification to JAN, JANTX, JANTXV:
JAN is the lowest level of screening for a military part.
*
JANTX is a JAN part that has been exposed to an additional burn-in test
(High temperature bake with power applied)
~
JANTXV is a JAN TX part that has been subjected to an additional visul
screening.
 
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