Absolute Maximum Ratings - Quectel RM520N-GL Hardware Design

heatsink should be larger than the module area to cover the module completely;
-
Choose the heatsink with adequate fins to dissipate heat;
-
Choose a TIM (Thermal Interface Material) with high thermal conductivity, good softness and
good wettability and place it between the heatsink and the module;
-
Fasten the heatsink with four screws to ensure that it is in close contact with the module to
prevent the heatsink from falling off during the drop, vibration test, or transportation.
Heatsink
PCB
TIM
Thermal pad
Module

6.6. Absolute Maximum Ratings

Absolute maximum ratings for power supply and voltage on digital and analog pins of the module are
listed in the following table.
Table 43: Absolute Maximum Ratings
Parameter
VCC
Voltage at Digital Pins
RM520N-GL_Hardware_Design
PCB
Figure 34: Placement and Fixing of the Heatsink
Min.
-0.3
-0.3
Typ. Max.
4.7
2.3
5G Module Series
Screw
Heatsink
TIM
Module
Thermal pad
Unit
V
V
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