Electronics & electrical
Electronics & electrical: products, applications and manufacturing knowledge.
Specialist areas
PCB & PCBA
PCB & PCBA: concepts, references and engineering guides.
Electronic components
Electronic components: concepts, references and engineering guides.
Power & electrical equipment
Power & electrical equipment: concepts, references and engineering guides.
Knowledge library
Content type
Concepts & Fundamentals
Capacitor: Electrodes, Dielectric and Capacitance
Learn what a capacitor is, how its electrodes and dielectric store charge, what capacitance means, and why DC charging differs from leakage current.
Read → Capacitor: Electrodes, Dielectric and CapacitanceConcepts & Fundamentals
PCB and PCBA: Boards, Traces, Pads and Vias
Learn the difference between a bare PCB and a PCBA, what traces, pads and vias do, and how surface-mount and through-hole connections differ.
Read → PCB and PCBA: Boards, Traces, Pads and ViasConcepts & Fundamentals
Resistor: Resistance, Ohms and Power Rating
Learn what a resistor is, how resistance is measured in ohms, and how resistance value, tolerance and power rating describe different properties.
Read → Resistor: Resistance, Ohms and Power Rating
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