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- Most components chip resistors are used in all electronic circuits
Most components chip resistors are used in all electronic circuits
In physics, the resistance represents the size of the conductor current disincentives. The greater the resistance of the conductor, said conductor greater impediment to current。 Different conductors, resistors are generally different, the resistance is a characteristic of the conductor itself. The resistive element is presented hinder current energy consumption components.
The size of the resistance value of the resistor element is generally related to temperature, to measure resistance is affected by temperature, the size of the physical quantity is the temperature coefficient, which is defined as the temperature increases the resistance value changes in the percentage of 1 ℃.
As the electronics industry workers, the resistance is known to everybody in the. The importance of it, no doubt about that。 They say "resistance is used in most components in all electronic circuits.
Chip resistors, so called because the substance of the current generation of the impediment to the substance of the role of resistance。 The resistance will lead to changes in the electronic liquidity, and the smaller the resistance, electronic liquidity, and vice versa. No small resistance or resistance substance referred to as electrical conductors, referred to the conductor. Can not form the substance of the current transmission is known as an electrical insulator, referred to as an insulator.
Resistor plus the number of "R" in the circuit using, such as: R1 represents a number 1 resistor。 The main role of the resistance in the circuit shunt, current limiting, partial pressure, bias.
2、Resistor color position and magnification relations as shown in the following table: the color effective digital magnification allows deviation (%) the silver / x0。01 ± 10 gold / x0.1 ± 5 Black 0 +0 / brown 1 x10 ± 1 red 2 x100 ±2 orange 3 x1000 / yellow 4 x10000 / green 5 x100000 ± 0.5 blue 6 x1000000 ± 0.2 purple 7 x10000000 ± 0.1 gray 8 x100000000 / white 9 x1000000000 /.
1、Parameter identification: the chip resistors units ohms (Ω), magnification units: kilohms (KΩ), megohms (MΩ)。 Conversion method: the 1 megohm = 1000 kilohms = 1000000 ohm resistor parameter annotation method 3, that is the the straight standard method, color standard method and several standard method. a number of standard method is mainly used for the patch small volume circuit, such as: 472 47 × 100Ω (4。7K); 104 indicates 100Kb color the ring labeling method to use is up, the examples are as follows: four-color ring resistance colored ring resistors (precision resistors)。
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