Double sided PCB Industrial electric meter
Basic information on the printing and manufacturing of products:
Circuit board classification: PCBA
Product code: 2A3905A0-PCBA
Circuit board use: industrial electricity meter
Pcb sheet information: double sided FR4, finished board thickness is recommended to be controlled by 1.6MM +/- 10%, copper thickness 2OZ, immersion gold, green oil white, single piece size 80*42.6MM
Order Quantity: 150pcs
Production cycle: 2 days
Process information for the product:
Production process: lead-free process
Production process: smt, dip, burning, testing, brushing three anti-paint, packaging
Solder paste requirements: Ag3.0/Cu0.5/20-38uM
1. The CN12 bit number should not cause the bottom through hole to be blocked during the patch and the furnace, and the later assembly should be used. 2. This product may produce A0 and A1 products at the same time, the PCB is the same, the patch is different, pay attention to the label after the patch.
3.CN3 bit number is 2P and 3P dual-purpose design, this product uses 2P connector, such as the picture patch, C1 bit number is empty 1 foot
4. After the CN4 number is used, the plug-in connector is used, and the clamshell connection is no longer used. The sample map may be different according to the BOM description and the description of this process.
Welding method: DIP manual welding, this product may produce A0 and A1 two products at the same time, the same PCB, different patches, pay attention to the label after the patch.
The cleaning method of the circuit board: simple cleaning, if the rosin residue is less and there is no tin slag, it is allowed to be cleaned.
Brush three anti-paint: spray or brush three anti-function test, spray or brush before the three measures to test 5% not less than 50 sets, no abnormalities before the 3 anti-process, three oil level: ordinary. Refer to the attached drawings for the position to avoid the spray or brush. The three anti-paint brand is Syl