Why so many transistor code? 【Transistor code query】
Update date：2012-9-19
Some people often complain so much, why triode code, but can not always find the specific model. Our analysis, and we can discuss.
The triode many manufacturers, transistor manufacturers really a lot, both foreign and domestic, on the number on the number of large and small dozens from NXP, TI big brands to domestic long electricity, and some small factory production many manufacturers.
Triode volume triode small size, unlike IC, if you want to silk screen on its own model, the position of the space is not enough, only the marked code.
3. Too many types of transistor, PNP, NPN points in the tubes of the same model. And according to the functional distinction switch tube, Darlington tube photosensitive tubes.
Above all the factors causing transistor code variety. Often we reverse the process, it must be based on screen printing find the specific model of the transistor, if you find these? There are several ways.
According to information released by the manufacturer, manufacturers will publish information, to tell the user what the code represents what model.
Looking for others to help, generally sell chips and sell triode know some code that indicates what type of chip, these are clues that can be used.
Accumulation, usually collected, with some accumulation can quickly find a specific model.
According to the schematic diagram of analysis, based on the function of the tube can be analyzed to identify the model.
Shenzhen East lead technology companies have a wealth of experience to the triode code inquiries MARKING query above, we often give customers the commissioning and production BOM list, be sure to clarify transistor models above, so we reverse look Model has extensive experience related needs can contact directly.
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