On the PCB board, there are a lot of silk screen letters, such as R107, C118, Q102, D202 and so on. Do you know what these letters mean? In fact, the letters on the PCB board represent the abbreviation of electronic components, and often follow the numbers behind the letters, and these numbers are also meaningful.
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The meaning of some letters on the PCB board
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B: A buzzer
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C: Capacitor
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D: Diode
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F: Fuse
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J: Jumper
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L: Inductance
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Q: Transistor
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R: resistor
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RT: thermistor
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T: Transformer
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U: Chip, Integrated circuit (IC)
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W: Voltage regulator
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Y: crystal oscillator