10. Top Markings
10.1 Top Marking: 8-Pin Narrow Body SOIC
The figure below illustrates the top markings for the Si873x in an SOIC8 package. The table explains the top marks shown in the illus-
tration.
Table 10.1. SOIC8 Top Marking Explanation
Line 1 Marking: Customer Part Number
Si87 = Base name of product series
W = Isolator product series (1 or 2)
X = Output configuration
5/9 = no enable
6 = enable, output high when active
7/8 = enable, output Hi-z when active
0 = enable, output low when active
S = Performance Grade:
A = 15 Mbps, 20 kV/μs minimum CMTI
B = 15 Mbps, 35 kV/μs minimum CMTI
V = Insulation rating
C = 3.75 kV
Line 2 Marking: RTTTTT = Mfg Code
Manufacturing Code from the Assembly Purchase Order
form.
“R” indicates revision.
Line 3 Marking:
Circle = 43 mils Diameter
Left-Justified
“e4” Pb-Free Symbol
YY = Year
WW = Work Week
Assigned by the Assembly House. Corresponds to the year
and work week of the mold date.
Si873x Data Sheet
Top Markings
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