Data for the 2SC3122 transistor in a 268 KB PDF, listed under the schematic type. Following JIS numbering, the 2SC prefix marks an NPN bipolar device, and the case often reads C3122 without the leading 2S. The name offers no package or maker information. A technician uses the sheet to identify terminals for testing, read the collector-emitter voltage and current ceilings, and compare gain and frequency figures when picking an equivalent. Always confirm the printed marking on the part before trusting this data.
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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