• Categories:Industry News
• Author:Becky Su
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• Time of issue:2023-11-11 11:24
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(Summary description)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!