Wi-Fi Module Series
FGH100M_Hardware_Design 28 / 41
⚫ Keep the module away from heat sources on your PCB, especially high-power components such as
processor, power amplifier, and power supply.
⚫ Maintain the integrity of the PCB copper layer and drill as many thermal vias as possible.
⚫ Follow the principles below when the heatsink is necessary:
- Do not place large size components in the area where the module is mounted on your PCB to
reserve enough place for heatsink installation.
- Attach the heatsink to the shielding cover of the module; In general, the base plate area of the
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.
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