AUSD05FB Datasheet, PDF (3/3 Pages) StarHope – Electro-Static Discharge for Aotomobile

SPSEMI
Application Information
RJ45 Protection
AUSD05FB
ESD/AUSD05FB
PHY
AUSD05FB
R
R
C
C
PCB Layout Recommendations
The location and circuit board layout is critical to maximize the effectiveness of the RJ45 protection circuit.
The following guidelines are recommended:
Locate the protection devices as close as possible to the RJ45 connector. This allows the protection devices
to absorb the energy of the transient voltage before it can be coupled into the adjacent traces on the PCB.
Minimize the loop area for the high.speed data lines, power and ground lines to reduce the radiated emissions.
Avoid running protection conductors in parallel with unprotected conductors
Use ground planes wherever possible to reduce the parasitic capacitance and inductance of the PCB that
degrades the effectiveness of a filter device.
Using shared transient return paths to a common ground point.
Dimensions(SOD-323)
SOD-323
HE
D
b
1
2
E
C
L
A1
Recommended Mounting Pad Layout
2.85
0.112
1.60
0.063
0.83
0.033
Millimeters
Inches
DIM Min Max Min Max
A
0.80 1.00 0.031 0.040
A1 0.00 0.10 0.000 0.004
A3
0.15REF
0.006REF
b
0.25 0.40 0.010 0.016
A3
C 0.089 0.177 0.003 0.007
D 1.60 1.80 0.062 0.070
A
E
1.15 1.35 0.045 0.053
L
0.08
0.003
HE 2.30 2.70 0.090 0.105
REV.2017.07.24
0.63
0.025
Dimensions in ( ^millimeters )
inches
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