2SD21360QA

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2SD21360QA Application Field and Working Principle

The 2SD21360QA is a PNP epitaxial planar silicon transistor that is commonly used in various types of applications. It is classified as a bipolar (BJT) single transistor with a maximum collector-emitter voltage of 30V and a maximum collector current of 2A. This particular transistor can withstand betweent -55^oC and +150^oC and has a maximum frequency of 100MHz.

The 2SD21360QA is typically used as an amplifier or driver in devices such as audio amplifiers, inverters, switching circuits, motor control systems, relay drivers, and voltage amplifiers. It is also used in circuits that power LED strips, which require a high amount of current. The 2SD21360QA is also often used in small signal and large signal amplification, power switching, and signal transmission applications.

Before discussing the key features and working principle of the 2SD21360QA, it is important to understand the basics of a PNP epiplanar transistor. This type of transistor is a three-layer semiconductor device with a p-type base, an n-type emitter, and an inverted n-type collector. It has two junctions, one between the base and emitter and one between the base and collector, allowing it to control current flow.

The 2SD21360QA has a maximum power dissipation of 500mW, collector-base breakdown voltage (BVCBO) of 45V, and a collector-emitter breakdown voltage (BVCEO) of 35V. It also has a change in collector current (ICont) of 180mA and a change in base current (Ib) of 15mA when a collector-emitter voltage or collector current of 20V and 2A are applied, respectively.

The main feature of the 2SD21360QA is its low base-emitter voltage. This feature enables it to maintain a high current gain. The low base-emitter voltage also ensures that the transistor can remain operational even when the supply voltage is decreased. Additionally, the 2SD21360QA has a high collector current, which allows it to handle high current applications. Furthermore, the 2SD21360QA is available in a variety of package sizes.

When it comes to the working principle, each section of the transistor plays an integral role. The base of the transistor acts as the control terminal, and a current must be passed through it for the transistor to conduct. The emitter is the most heavily doped region, and it acts as a collector for the charges that are injected from the base. Finally, the collector is the least doped region, and it acts as the output terminal, which allows amplified current to flow.

When a voltage is applied to the base of the 2SD21360QA, the base-emitter junction becomes forward biased, allowing electrons to be released. These electrons are attracted to the collector and continue to be emitted, thus allowing a high current to flow. The current gain of the 2SD21360QA is determined by the ratio of the output current to the input current.

In conclusion, the 2SD21360QA is a PNP epitaxial planar silicon transistor that is used in various types of applications. It is classified as a bipolar (BJT) single transistor with a maximum collector-emitter voltage of 30V, collector current of 2A, and power dissipation of 500mW. This transistor also has a change in collector current (ICont) of 180mA and a change in base current (Ib) of 15mA when a collector-emitter voltage of 20V and a collector current of 2A are applied. It has a low base-emitter voltage which enables the transistor to maintain a high current gain. Lastly, the working principle of the 2SD21360QA involves the base, which acts as the control terminal, and the emitter and collector, which act as the collector for charge injection and the output terminal, respectively.

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