S50 Hardware User Guide
1VV0301505 Rev. 3
Page 42 of 60
2021-05-05
Not Subject to NDA
7.6.
Housing Guidelines
The individual case must be checked to decide whether a specific housing is suitable for
the use of the internal antenna. A plastic housing must at least fulfill the following
requirements:
•
Non-conductive material, non-RF-blocking plastics
•
No metallic coating
•
ABS is suggested
7.7.
Safety Guidelines
According to SAR regulation EN 62479:2010 the S50/AI is not intended to be
used in close proximity to the human body. Please refer to above-mentioned regulation
for more specific information.
In respect to the safety regulation EN 62368-1:2014 + AC:2015 all conductive parts of the
S50
are to be classified as SELV circuitry. OEM’s implementing the
S50 in their products should follow the isolation rules given in regulation EN
62368-1:2014.
The PCB material of the S50 is classified UL-94V0.
7.8.
Cleaning
In general, cleaning the modules mounted on the host board is strongly discouraged.
Residues between module and host board cannot be easily removed with any cleaning
method.
•
Cleaning with water or any organic solvent can lead to capillary effects where the
cleaning solvent is absorbed into the gap between the module and the host board.
The combination of soldering flux residues and encapsulated solvent could lead to
short circuits between conductive parts. The solvent could also damage any labels.
•
Ultrasonic cleaning could damage the module permanently. Especially for crystal
oscillators the risk of damaging is very high.
