Basic Knowledge of SMT Frequently Used Electronic Components SMT common electronic components basic knowledge 1. The classification of common electronic components.    (1), Resistors (Res): Electronics symbol R                           Chip resistors, color ring resistors,                           Voltage-sensitive resistors, temperature-sensitive resistors    (2), capacitors (Cap): electronics symbol C                           Chip Capacitor, ** Capacitor, Electrolytic Capacitor                           Magnetic chip capacitors, polyester capacitors, tantalum capacitors     (3), inductors (IND): electronics symbol L                           Chip laminated inductors, chip wirewound inductors                           Color ring inductors, wirewound inductors     (4), diode (DIO): electronics symbol D                           Chip diode, silicon diode,                           Germanium diode, light-emitting diode     (5), triode (TRA): electronics symbols Q§T     (6), switch (KEY): electronics symbol SW                           Toggle switch, key switch     (7), integrated circuits (IC): electronics symbol U                            QFP, PLCC, SOP, BGA     (8), crystal (CRYSTAL): electronics symbol Y     (9), socket (JACK): electronics symbol J     (10), Optocoupler (OPTO)     (11), transformer     (12), FUSE (fuse) 2. Commonly used electronic component units and conversion.    (1), resistance.           Basic unit: Ohm Symbol: Ω           Common unit: kilo-ohm Symbol: KΩ                               Megaohm Symbol: MΩ           Conversion relationship: 1MΩ = 1000KΩ = 1000000Ω     (2), capacitance.             Basic unit: Farad Symbol: F             Common unit: millifar Symbol: mF                        Microfar Symbol: μF                        Nanofar Symbol: nF                        Pico-farad Symbol: pF             Conversion relation.             1F=103mF=106μF=109nF=1012pF      (3) Inductance.               Basic unit: Henry Symbol: H               Common unit: millihenry Symbol: mH                        Microhenry Symbol: uH                        Nano-Henry Symbol: nH               Conversion relation.               1H=103mH=106μH=109nH 3:Common electronic component error and voltage indication method      (1), error letter identification method.             C D J K M Z           ±0.25pF ±0.5pF ±5% ±10% ±20% +80% -20      (2), Pressure-resistant letter identification method.             A B C                               25V 50V 100V SMT often electronic components basic knowledge is introduced here!

Basic Knowledge of SMT Frequently Used Electronic Components

SMT common electronic components basic knowledge
1. The classification of common electronic components.
   (1), Resistors (Res): Electronics symbol R
                          Chip resistors, color ring resistors,
                          Voltage-sensitive resistors, temperature-sensitive resistors
   (2), capacitors (Cap): electronics symbol C
                          Chip Capacitor, ** Capacitor, Electrolytic Capacitor
                          Magnetic chip capacitors, polyester capacitors, tantalum capacitors
    (3), inductors (IND): electronics symbol L
                          Chip laminated inductors, chip wirewound inductors
                          Color ring inductors, wirewound inductors
    (4), diode (DIO): electronics symbol D
                          Chip diode, silicon diode,
                          Germanium diode, light-emitting diode
    (5), triode (TRA): electronics symbols Q§T
    (6), switch (KEY): electronics symbol SW
                          Toggle switch, key switch
    (7), integrated circuits (IC): electronics symbol U 
                          QFP, PLCC, SOP, BGA
    (8), crystal (CRYSTAL): electronics symbol Y
    (9), socket (JACK): electronics symbol J
    (10), Optocoupler (OPTO)
    (11), transformer
    (12), FUSE (fuse)

2. Commonly used electronic component units and conversion.
   (1), resistance.
          Basic unit: Ohm Symbol: Ω
          Common unit: kilo-ohm Symbol: KΩ
                              Megaohm Symbol: MΩ
          Conversion relationship: 1MΩ = 1000KΩ = 1000000Ω
    (2), capacitance.
            Basic unit: Farad Symbol: F
            Common unit: millifar Symbol: mF
                       Microfar Symbol: μF
                       Nanofar Symbol: nF
                       Pico-farad Symbol: pF
            Conversion relation.
            1F=103mF=106μF=109nF=1012pF 
    (3) Inductance.
              Basic unit: Henry Symbol: H
              Common unit: millihenry Symbol: mH
                       Microhenry Symbol: uH
                       Nano-Henry Symbol: nH
              Conversion relation.
              1H=103mH=106μH=109nH

3:Common electronic component error and voltage indication method
     (1), error letter identification method.
            C D J K M Z
          ±0.25pF ±0.5pF ±5% ±10% ±20% +80% -20

     (2), Pressure-resistant letter identification method.
            A B C                   
           25V 50V 100V

SMT often electronic components basic knowledge is introduced here!