Product Manual

WBR1D-IPEX Datasheet
17
7.3 Production Instructions
1. Use an SMT placement machine to mount the stamp hole module that Tuya produces
onto the PCB within 24 hours after the module is unpacked and the firmware is
burned. If not, vacuum pack the module again. Bake the module before mounting it
onto the PCB.
(1) SMT placement equipment
i. Reflow soldering machine
ii. Automated optical inspection (AOI) equipment
iii. Nozzle with a 6 mm to 8 mm diameter
(2) Baking equipment
i. Cabinet oven
ii. Anti-static heat-resistant trays
iii. Anti-static heat-resistant gloves
2. Storage conditions for a delivered module are as follows:
(1) The moisture-proof bag is placed in an environment where the temperature is
below 30°C and the relative humidity is lower than 70%.
(2) The shelf life of a dry-packaged product is six months from the date when the
product is packaged and sealed.
(3) The package contains a humidity indicator card (HIC).
Figure 7-5 HIC for WBR1D-IPEX
3. Bake a module based on HIC status as follows when you unpack the module
package:
(1) If the 30%, 40%, and 50% circles are blue, bake the module for 2 consecutive