Product Manual

WRD3L Datasheet
Hangzhou Tuya Information Technology Co., Ltd. 14 V2.0.1
Figure 6-4 Layout of the PCB to which WRD3L applies
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: