This post is a continuation of problems in my Forzee e-bike, which operates intermittently. I've not done anything with it, but lately decided to examine the BMS. Of course, being of Chinese origin, no information and is a mixture of tiny surface devices with no marks, apart from the four mosfets. But one component was drawn to my attention. The silk screen shows D4, but it's no diode, and no mark on the silk screen. Like the rest no, marking not even a band to indicate anode/cathode. It is a glass type with wire connections and has a resistance of 143k in both ways.
My query is if this is some kind device that I have never encountered; It's not a zener or schottky. Perhaps someone might have an idea, and if such a device in the midst of many smd's could give 'peculiar' effects?
Regards.
My query is if this is some kind device that I have never encountered; It's not a zener or schottky. Perhaps someone might have an idea, and if such a device in the midst of many smd's could give 'peculiar' effects?
Regards.
