TPESD0502B SOT523 package
13MHZ original stock
This figure is a schematic diagram of the instant marking device. When the power is 60 Hz, the output of the transformer T1 is 12.6. After D1 rectification, the IC4 and LM7805 regulators are calibrated to generate 5V DC current. The unregulated AC current passes through the R2, R5, C1 and C2 bands.