User's Manual

Wi-Fi&Bluetooth Module Series

FC41D_Hardware_Design

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Table 30: Recommended Thermal Profile Parameters

1. During manufacturing and soldering, or any other processes that may contact the module directly,

NEVER wipe the module’s shielding can with organic solvents, such as acetone, ethyl alcohol,

isopropyl alcohol, trichloroethylene, etc. Otherwise, the shielding can may become rusted.

2. The shielding can for the module is made of Cupro-Nickel base material. It is tested that after 12

hours’ Neutral Salt Spray test, the laser engraved label information on the shielding can is still

clearly identifiable and the QR code is still readable, although white rust may be found.

3. If a conformal coating is necessary for the module, do NOT use any coating material that may

chemically react with the PCB or shielding cover, and prevent the coating material from flowing into

the module.

6.3. Packaging

FC41D module is packaged with tape and sealed in a vacuum bag. It is recommended to open the

vacuum package when it is used in actual production.

Each reel contains 250 FC41D modules with a reel diameter of 330 mm. The figures below show the

packaging details, measured in mm.

Factor

Recommendation

Soak Zone

Max slope

1–3 °C/s

Soak time (between A and B: 150 °C and 200 °C)

70–120 s

Reflow Zone

Max slope

2–3 °C/s

Reflow time (D: over 217 °C)

40–70 s

Max temperature

238 °C to 246 °C

Cooling down slope

-1.5 to -3 °C/s

Reflow Cycle

Max reflow cycle

NOTE