SMD marking code reference in PDF form, 11.4 MB. Books of this type list the short codes printed on surface-mount transistors, diodes, regulators and other small packages, linking each code to a part number, manufacturer and package. The name gives no edition or publisher. Repair technicians use it to identify an unknown SOT-23 or similar part on a board before ordering a replacement, keeping in mind that one code may map to several devices, so package and circuit context must be checked.
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