Data Sheet
JODY-W1 series - Data Sheet
UBX-16013635 - R13 Contents Page 42 of 50
Confidential
After opening the dry pack, the modules with MSL 3 must be mounted within 168 hours in factory
conditions of maximum 30 °C/60%RH or must be stored at less than 10%RH. The modules with MSL
4 must be mounted within 72 hours.
The modules require baking if the humidity indicator card shows more than 10% when read at
23±5°C or if the conditions mentioned above are not met. Please refer to J-STD-033B standard for
the bake procedure.
5// ,)$)
Reflow profiles are to be selected according to u-blox recommendations. See JODY-W1 series
System Integration Manual [2]
for more information.
B
Failure to observe these recommendations can result in severe damage to the device.
5/0 +)$
B
JODY-W1 series modules are Electrostatic Sensitive Devices (ESD). Observe precautions for
handling! Failure to observe these precautions can result in severe damage to the Wi-Fi receiver!
Wi-Fi transceivers are Electrostatic Sensitive Devices (ESD) and require special precautions when
handling. Particular care must be exercised when handling patch antennas, due to the risk of
electrostatic charges. In addition to standard ESD safety practices, the following measures should
be taken into account whenever handling the receiver:
• Unless there is a galvanic coupling between
the local GND (i.e. the work table) and the
PCB GND, then the first point of contact
when handling the PCB must always be
between the local GND and PCB GND.
• Before mounting an antenna patch, connect
ground of the device
• When handling the RF pin, do not come into
contact with any charged capacitors and be
careful when contacting materials that can
develop charges (e.g. patch antenna ~10 pF,
coax cable ~50-80 pF/m, soldering iron, …)
• To prevent electrostatic discharge through
the RF input, do not touch any exposed
antenna area. If there is any risk that such
exposed antenna area is touched in non ESD
protected work area, implement proper ESD
protection measures in the design.
• When soldering RF connectors and patch
antennas to the receiver’s RF pin, make sure
to use an ESD safe soldering iron (tip).