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RoHS-Compliant
IC Marking & Packaging
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THAT Corporation RoHS-compliant integrated circuits, assemblies, and
packaging materials are marked in accordance with the standards
outlined in JEDEC document JESD97, "Marking, Symbols, and Labels
for Identification of Lead (Pb) Free Assemblies, Components and
Devices". A copy of this document can be obtained from the JEDEC
website.
IC Marking
THAT currently uses three different
RoHS compliant plating finishes on the pins of our ICs and hence three separate marking
schemes to differentiate them from one another.
Note that the part number suffix used to order lead-free parts will
not be printed on actual integrated circuits.
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100% Tin (Sn) plated parts
These parts will be marked with a white box around the pin-one
indicator dimple. Only the 2181S-T is currently supplied in this finish.
Note, the 2181S is also available with a nickel- palladium- gold
finish.
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Tin-Bismuth (Sn-Bi) plated parts
These Parts will display a horizontal white line below the part number
but above the date and lot codes. Parts with this finish: the 4301-series and the 4311.
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Nickel-Palladium-Gold (Ni-Pd-Au) plated parts
Parts with the Ni-Pd-Au finish make up the majority of our
product line. This is our default plating and thus there is no special
marking on the parts to indicated they are Ni-Pd-Au plated. The model
number is marked to one side with the date and lot codes below as
shown in the image at right.
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Packaging
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Pb-free
marking
Packaging for THAT Corporation's RoHS compliant parts will be marked in
accordance with the IPC guidelines. Each level of packaging
(e.g. bag or box) above the tube quantity will be labeled with the Pb-free
symbol as shown at right.
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Pin finish
marking
The type of plating on the IC legs will be identified on the
packaging. Following the IPC symbology, the plating material will be
indicated by the letter 'e' followed by a number, both then
circumscribed by an ellipse as shown below.
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100% Tin (Sn)
Packaging for these parts will be marked with the symbol shown to
the right. Only the 2181S-T is supplied in this finish.
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Nickel-Palladium-Gold
(Ni-Pd-Au)
Packaging for parts with the Ni-Pd-Au finish will be marked with
the symbol
shown to the right. Parts with this finish include:
1200-series, 1240-series, 1250-series, 1280-series, 1500-series, 1600-series, 4305,
4315, 4320, 2162, 2180-series, and 2181-series.
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Tin-Bismuth
(Sn-Bi)
The packaging for these parts will be labeled with the symbol at
right. Parts with this finish
include: the 4301-series and the 4311.
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