Category «elektronika»
Diode
Diode is a two-terminal electronic component that has different electrical conductivity depending on the polarity of the applied voltage. Diodes can be vacuum (rectifiers), gas-filled (gas diodes, ignitrons, corona and glow discharge stabilizers), semiconductor, and so on. Currently, semiconductor diodes are used in the vast majority of cases, so we will focus on them. A …
1n4003 datasheet
data sheet 1n4002
1n4001 data sheet
Varistor
A varistor is a semiconductor resistor with a symmetric non-linear volt-ampere characteristic. The name is derived from the words “variable resistor” – a resistor that changes. It has the property of sharply decreasing its resistance when the applied voltage exceeds a certain threshold value. With further increase in voltage, the resistance decreases even more. Principle …
Ohm’s Law
Ohm’s Law This law takes into account the key quantitative characteristics of an electric circuit: Ohm’s Law А law stating that electric current is proportional to voltage and inversely proportional to resistance. To describe an electric circuit that does not contain EMF, you can use Ohm’s law for a section of the circuit. This is …