BC817-25,235

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Transistor Type:	NPN
Current - Collector (Ic) (Max):	500mA
Voltage - Collector Emitter Breakdown (Max):	45V
Vce Saturation (Max) @ Ib, Ic:	700mV @ 50mA, 500mA
Current - Collector Cutoff (Max):	100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce:	160 @ 100mA, 1V
Power - Max:	250mW
Frequency - Transition:	100MHz
Operating Temperature:	150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	TO-236AB (SOT23)
Base Part Number:	BC817

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The BC817-25,235 is an NPN transistor in a small plastic surface mount package. It is a general-purpose low-power transistor designed for a wide range of applications. The BC817-25,235 has a low collector-emitter saturation voltage and is suitable for use in general-purpose switching circuits.Bipolar transistors are four layer devices made up of a base layer, collector layer, emitter layer and substrate. The current flow between two emitter and collector layers is controlled by the minority charge carriers that flow through the base layer. Basically, it is a three terminal electronic device where the base terminal is used to switch or control the current that flows through the other two terminals, namely collector and emitter. The BC817-25,235 is a single bipolar transistor which means that it consists of a single PNP or NPN silicon chip enclosed inside a single plastic case. This type of transistor is used in applications where only a single transistor is required such as amplifiers, drivers, switches, etc. It is constructed using semiconductor materials such as silicon and germanium, hence it is also known as a semiconductor transistor. The working principle of the BC817-25,235 is based on a simple electrical circuit in which current flows from the collector to the emitter when the base is forward biased. This forward bias is achieved by connecting the base to a positive voltage source. When a positive voltage is applied to the base, it causes a large current to flow from the collector to the emitter of the transistor. This current flow is called the collector-emitter current. This current flow is then used to control the current flowing through the load, which results in amplification of the current. The BC817-25,235 can be used in a wide range of applications such as switching circuits, low-level amplifier circuits and voltage regulation circuits. It is used in audio amplifier circuits, voltage regulator circuits, motor control circuits and signal processing circuits. It can be used as a current amplifier or signal controlling device, as it can control the current flow between two terminals. It is used in applications that require amplification or switching at a low voltage level.The BC817-25,235 is an important device in modern electronics and is used in a wide range of applications. It is a low-power transistor with a low collector-emitter saturation voltage, making it suitable for switching and amplification at low voltage levels. It is used in audio amplifiers, motor control circuits and signal processing circuits. By understanding its application field and working principle, engineers and technicians can design and build a variety of useful circuits using the BC817-25,235.

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