A wire wound resistor is a type of fixed resistor in which the resistive element is made by winding a metal alloy wire around an insulating core. Unlike carbon or film resistors, the resistance value in a wire wound resistor is determined primarily by the length, diameter, and material of the wire used. Wire wound […]
Electronic components
Metal Oxide Resistor Construction, Working, Types and Applications
A metal oxide resistor is a type of fixed resistor that uses a metal oxide film, most commonly tin oxide (SnOâ‚‚), as its resistive element, deposited on a ceramic substrate. Designers widely use these resistors in electronic circuits that require high temperature stability, high voltage endurance, and strong surge resistance. Metal oxide resistors were developed […]
Thick Film Resistor Construction, Working, Types and Applications
A thick film resistor is one of the most widely used fixed resistors in modern electronic circuits. It is manufactured by depositing a resistive paste (thick film) onto a ceramic substrate and then firing it at high temperature to form a stable resistive layer. Due to its low cost, mechanical robustness, and compatibility with mass […]
Metal Film Resistor Construction, Working, Types and Applications
A metal film resistor is a precision fixed resistor widely used in electronic circuits where high accuracy, stability, and low noise are required. Compared to carbon composition and carbon film resistors, metal film resistors offer tighter tolerance, lower temperature coefficient, and superior long-term reliability. They are extensively used in analog circuits, instrumentation, audio equipment, medical […]
Carbon Film Resistor Construction, Working, Types and Applications
A carbon film resistor is one of the most widely used fixed resistors in electronic circuits. It belongs to the carbon-based resistor family, where resistance is obtained from a thin layer of carbon deposited on an insulating substrate. Due to its moderate cost, good stability, reasonable accuracy, and wide resistance range, the carbon film resistor […]
Power Diode: Symbol, Construction, Working, Types and Applications
A power diode is a semiconductor device specifically engineered to conduct large currents and withstand high reverse voltages in power electronic circuits. It is fundamentally a PN junction diode, but its internal structure, doping profile, and packaging are optimized for high-power operation rather than low-level signal processing. In power electronic systems, power diodes play a […]





