SQZ20AJB-3K6

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Electric resistors are electrical elements that control the electric current in a circuit, which are used in a wide range of electronics and electrical devices. Among them, through-hole resistors are also known as axial resistors with two leads, and each lead is connected respectively at two ends of a cylindrical resistor that passes through a hole on a printed circuit board. Through-hole resistors are widely used because of their stability, low costs and various packages. SQZ20AJB-3K6 is a through-hole resistor, whose application field and working principle will be discussed in detail in this article.

SQZ20AJB-3K6 belong to the type of through-hole resistors that are made of metal film resistors with carbon compound as the system substrate. It is used in various high precision, medium power applications common in the industrial field, including frequency conversion systems, power supplies, motor drivers and energy storage systems, etc. The most widely used resistance value for this type of resistors is in the range of 10 to 10KOhm with tolerance of ±5%. Moreover, SQZ20AJB-3K6 has a long-term stability of ±1-2% over a wide range of temperature variations. It also features a wide range of operating temperature from –55℃ to +155℃. The structure of the SQZ20AJB-3K6 includes a metal film resistor with a cylindrical body and two metallic ends for connection. The pre-coated carbon layer is placed at the bottom of the resistor body to inhibit the transfer of heat.

Regarding the working mechanism of this type of through-hole resistor, they are based on the principle of Ohm\'s law, which states that the flow of electric current in a circuit is directly proportional to the applied voltage and is inversely proportional to the resistance. In other words, when voltage is applied across the resistor, electric current flows through and the resistor will drop a certain voltages due to its resistance. The amount of voltage drop is determined by the value of the resistance. Thus, the fundamental purpose of the resistor is to reduce the flow of electric current for protection of more precious electronic components. Moreover, when two resistors are connected in series, the total resistance of the circuit will be the sum of the individual resistances; when connected in parallel they would add the reciprocal of the individual resistances.

Besides its application field and working principle, SQZ20AJB-3K6 also features other advantages such as a small size, a low temperature coefficient, and high power capacity. It is an affordable type of through-hole resistor with good performance, and it is widely used in variety of electronic circuits.

In conclusion, SQZ20AJB-3K6 is a type of through-hole resistor. Due to its excellent features and advantages, it is widely used in industrial fields with a resistance range of 10 to 10KOhm and tolerance of ±5%. It works based on the principle of Ohm\'s law and provides an economical yet reliable solution for various circuits and applications.

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