Nexperia
PESD6V3S1UL
Unidirectional ESD protection diode
10. Application information
The device is designed for protection of one unidirectional data or signal line from surge pulses
and ESD damage. The device is suitable on lines where the signal polarities are either positive or
negative with respect to ground.
line to be protected
line to be protected
(positive signal polarity)
(negative signal polarity)
ESD protection diode
ESD protection diode
GND
GND
unidirectional protection of one line
aaa-002440
Fig. 7. Application diagram
Circuit board layout and protection device placement
Circuit board layout is critical for the suppression of ESD, Electrical Fast Transient (EFT) and surge
transients. The following guidelines are recommended:
1. Place the device as close to the input terminal or connector as possible.
2. Minimize the path length between the device and the protected line.
3. Keep parallel signal paths to a minimum.
4. Avoid running protected conductors in parallel with unprotected conductors.
5. Minimize all Printed-Circuit Board (PCB) conductive loops including power and ground loops.
6. Minimize the length of the transient return path to ground.
7. Avoid using shared transient return paths to a common ground point.
8. Use ground planes whenever possible. For multilayer PCBs, use ground vias.
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PESD6V3S1UL
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Nexperia B.V. 2022. All rights reserved
Product data sheet
14 September 2022
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