Esd; Thermal Dissipation - Quectel EC21 Series Hardware Design

Table 55: GNSS Current Consumption of EC21 Series Module
Description
Searching
(AT+CFUN=0)
Tracking
(AT+CFUN=0)

5.5. ESD

The module is not protected against electrostatics discharge (ESD) in general. Consequently, it is subject
to ESD handling precautions that typically apply to ESD sensitive components. Proper ESD handling and
packaging procedures must be applied throughout the processing, handling and operation of any
application that incorporates the module. The following table shows the module's electrostatics discharge
characteristics.
Table 56: Electrostatics Discharge Characteristics (Temperature: 25 ºC, Humidity: 45 %)
Tested Interfaces
VBAT, GND
All Antenna Interfaces
Other Interfaces

5.6. Thermal Dissipation

In order to achieve better performance of the module, it is recommended to comply with the following
principles for thermal consideration:
 On customers' PCB design, please keep placement of the module away from heating sources,
especially high power components such as ARM processor, audio power amplifier, power supply, etc.
EC21_Series_Hardware_Design
Conditions
Cold start @ Passive Antenna
Lost state @ Passive Antenna
Instrument Environment
Open Sky @ Passive Antenna
Open Sky @ Active Antenna
Contact Discharge
±5
±4
±0.5
LTE Standard Module Series
Typ.
58
58
33
35
43
Air Discharge
±10
±8
±1
Unit
mA
mA
mA
mA
mA
Unit
kV
kV
kV
104 / 118