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EDUCATIONAL MATERIAL Educational Resource Unknown 贸泽采购

Electronic Components Guide

Essential knowledge for hardware design engineers

Resistors

Purpose: Limit current flow and divide voltages

Units: Ohms (Ω)

Types: Carbon film, metal film, wirewound, SMD

Capacitors

Purpose: Store electrical charge and filter signals

Units: Farads (F)

Types: Ceramic, electrolytic, tantalum, film

Inductors

Purpose: Store energy in magnetic field, filter frequencies

Units: Henries (H)

Applications: Power supplies, RF circuits, filters

Diodes

Purpose: Allow current flow in one direction only

Types: Rectifier, Zener, Schottky, LED

Key Parameter: Forward voltage drop

Transistors

Bipolar Junction (BJT):

  • NPN and PNP types
  • Current-controlled device
  • Used in amplification and switching

Field Effect (FET):

  • MOSFET, JFET
  • Voltage-controlled device
  • High input impedance
Always check datasheets and consider power ratings, tolerance, temperature coefficients, and PCB layout requirements when selecting components.
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