Electronic Manufacturing Questions Answered

I recently ordered some PCB bits from a new supplier to assemble a widget. I want to make temporary connections between different PCBs, but am not convinced I want to

I have designed a power supply card using V7805-2000. Copper thickness is 70 microns, board size is 5 cm × 5 cm. When this underwent vibration test the regulator came

SMD LEDs normally have some kind of marking. We recently had 300 PCBs manufactured where each had 32 LEDs of those. However, the assembly house placed all LEDs in reverse.

I am making PCB prototype with components and a WT51822-S2 bluetooth module, which can be soldered on easily but desoldered hardly. Is there a way to test SMD modules without

I want to unambiguously refer to an assembled PCB that has been tested.
Does anyone know a standard term for a PCBA that has been through test (assuming a

I’ve ordered fabrication and assembly of small PCB batches (100pcs) a couple of times already. Each time the factory asked me if I want to do test on the PCB.

A batch of PCB got wet in warehouse due to roof linking. Too terrible to shoulder the lost. How can I do to rescue these wet PCBs? Or to minimize