Quectel EC21 Series User Manual

LTE Standard Module Series
EC21_Series_Hardware_Design
104
/ 118
Table 55: GNSS Current Consumption of EC21 Series Module
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 Contact Discharge Air Discharge Unit
VBAT, GND ±5 ±10 kV
All Antenna Interfaces ±4 ±8 kV
Other Interfaces ±0.5 ±1 kV
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.
Description Conditions Typ. Unit
Searching
(AT+CFUN=0)
Cold start @ Passive Antenna 58 mA
Lost state @ Passive Antenna 58 mA
Tracking
(AT+CFUN=0)
Instrument Environment 33 mA
Open Sky @ Passive Antenna 35 mA
Open Sky @ Active Antenna 43 mA

Quectel EC21 Series Specifications

General

Brand	Quectel
Model	EC21 Series
Category	Control Unit
Language	English