Reference sheet for the 2SC4539, an NPN bipolar transistor by its JIS-style 2SC designation, stored as a 158 KB PDF that any standard PDF reader opens. Apart from the part number the name gives no detail on maker, package or ratings. Expect tables of collector-emitter voltage, collector current, power dissipation and hFE, plus outline dimensions. Check the body marking on the board matches before ordering, and verify pin assignment against the drawing when choosing a cross-reference.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @cyberlanelectonik. Enginerys does not host this file.
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