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Resistor markings and color code

The marking of resistors is done in 2 basic ways: with numbers or with colored rings.
Using numbers, the value of the resistor can be read directly.
With colored rings, the value is divided into rings of different colors where each color represents a number.

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Marcarea condensatoarelor

The same as the resistors, capacitors can be marked with a color code or using numbers that represent usually their value in pF (picofarad) or in µF (microfarad). The information that you can usually find on the capacitor body or capsule are: the value, operating voltage, their tolerance (the deviation from their specified value) and the operating temperature.

Marcarea diodelor

In electronics, diodes come in many shapes and sizes, from the simplest ones used as rectifiers (the conversion from alternating current to continuous current), to more specialized ones like Schottky that are used for protections of sensible circuits, to voltage regulators (Zenner). There are ones used to detect or rectify small radio frequency currents (detectors, with germanium) and other ones like varicap that can replace a capacitor in a circuit.

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Marcarea tranzistoarelor

Tranzistoarele sunt notate fara cod de culoare. Identificarea acestora se face citind direct tipul acestora, pe corpul de culoare neagra. Pe langa tipul tranzistorului, pe corpul acestora pot aparea notatii despre data fabricatiei sau chiar denumirea in ordine a terminalelor/picioruselor.

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Lipirea componentelor electronice folosind stația de lipit

Realizarea lipiturilor electrice se poate realiza în mai multe moduri, dar există o metodă corectă care dă cele mai bune rezultate. Am sintetizat cele mai bune instrucțiuni de lipire într-un tutorial special conceput pentru copii. După exersarea de câteva ori a pașilor menționați, se pot realiza lipituri de foarte bună calitate, chiar dacă micii electroniști sunt la început de drum. Succes!

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Tranzistoarele sunt notate fara cod de culoare. Identificarea acestora se face citind direct tipul acestora, pe corpul de culoare neagra. Pe langa tipul tranzistorului, pe corpul acestora pot aparea notatii despre data fabricatiei sau chiar denumirea in ordine a terminalelor/picioruselor.

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Dezlipirea componentelor electronice folosind stația de lipit

Ca și în cazul lipirii componentelor, dezlipirea acestora se face tot prin mai multe metode care dau rezultate mai bune sau mai puțin bune. Cert este că metoda de dezlipire se alege în funcție de complexitatea locului de unde este necesar să se extragă piesa / piesele electronice și de circumstanțe. Temperaturile de dezlipire pot varia, vârfurile utilizate la dezlipire pot fi diferite, timpul de menținere a vârfului de lipire la locul de topire poate varia etc. Noi am sintetizat cele mai bune metode pentru a face acest lucru, metode de altfel special adaptate pentru copii.

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