OliverSmith

I want to implement a control system I designed for a light electric motorbike. I would like to mount it as professionally as possible on the chassis. It consists of a power system pcb and a SAMC21 development board which I’ll merge later once this all works properly. I have tried screwing it directly on the aluminium chassis but have found that shocks and vibrations from the horn disturbed the system or even destroyed it upon large shocks. Is there a specific way car and motorcycle manufacturers mount their electronics to make their system as robust as possible?

Estou me perguntando se encomendei algumas placas de alumínio que contêm transistores D2pak e quero soldar algumas delas para teste. É possível usar equipamento básico ou é necessário um forno de solda por refluxo.

I know the paste mask layer is also called the stencil layer. It’s only used for assembly. I want to know if the paste mask layer (camada superior e inferior) is necessary for through hole components. For SMD components I know the paste mask layer is required to solder the components. Is it necessary for through hole components?

I have three through-hole PCBs that are missing front and back solder mask openings for two of the components. The solder mask (usually green) is covering the front and back solder pads. All other pads for all other parts are exposed. Is there a good way to remove the solder mask so that I can solder the components to the board?

Estou projetando um 2 camada PCB com componentes em ambos os lados. Os componentes SMT são um lado do PCB, mas TH (através do orifício) os componentes estão em ambos os lados. Preciso entender algo mencionado pelo fornecedor chamado lados primários e secundários.