2STR1215

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Transistor Type:	NPN
Current - Collector (Ic) (Max):	1.5A
Voltage - Collector Emitter Breakdown (Max):	15V
Vce Saturation (Max) @ Ib, Ic:	850mV @ 200mA, 2A
Current - Collector Cutoff (Max):	100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce:	200 @ 500mA, 2V
Power - Max:	500mW
Frequency - Transition:	--
Operating Temperature:	-65°C ~ 150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	SOT-23-3
Base Part Number:	2STR1215

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2STR1215 application field and working principle

The 2STR1215 is a single-ended transistor, a type of Bipolar Junction Transistor (BJT). This transistor can be used as an amplifier in high frequency operations, as well as digital and analog circuits. As a single-ended transistor, the 2STR1215 features with a built-in base-emitter junction and collector-base junction. The base-emitter junction is composed of two p-n junctions in series, which creates a voltage gain between the collector and the base. The collector-base junction is composed of two p-n junctions in parallel, which creates a current gain between the collector and the base.
The 2STR1215 is a normally-closed transistor, meaning that the base-emitter junction is biased in the off-state when no voltage is applied to it. When a positive voltage is applied to the base of the transistor, current will flow from the collector to the base, which turns the transistor on and creates the on-state. This allows the transistor to amplify both the current and the voltage between the base and the emitter, thus allowing it to be used as an amplifier.
When the 2STR1215 is used as an amplifier, the base current is used to control the operation of the transistor. The base current is determined by the voltage applied to the base-emitter junction, as well as by the current flowing through the collector-base junction. When the base current is increased, the collector-emitter current also increases and the collector-emitter voltage decreases. This voltage reduction amplifies the signal of the base current. For instance, when a signal is applied to the base of the transistor, the collector-emitter current will increase from the signal and result in a greater collector-emitter voltage reduction, thus amplifying the signal.
The 2STR1215 can also be used in analog and digital circuits. In analog circuits, the transistor can be used to amplify weak signals, such as from microphones, as well as for signal switching. In digital circuits, the transistor is used as a switch to control and/or activate other components. For example, the transistor can be used as a switch to turn on and off digital logic signals.

In addition to the applications outlined above, the 2STR1215 can be used in a variety of circuits, including small power amplifier stages, signal processing, radio frequency circuits, and integrated circuits. The 2STR1215 is typically used in applications and circuits where efficiency, space requirements, and costs are major concerns.
The 2STR1215 is a robust and reliable device and is widely used in various applications. It is easy to use and can be used for a variety of tasks due to its wide range of operating characteristics. With its low power consumption requirements and high performance, the 2STR1215 is a cost-effective solution for many applications and circuits.

In conclusion, the 2STR1215 is a single-ended BJT transistor which can be used as an amplifier in high frequency operations, as well as digital and analog circuits. It features with a built in base-emitter junction and collector-base junction, and can be used in a variety of circuits, such as small power amplifier stages, signal processing, radio frequency circuits, and integrated circuits. The 2STR1215 is a reliable and cost-effective device and is widely used in various applications.

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