BC638BU

Series:	--
Packaging:	Bulk
Part Status:	Obsolete
Transistor Type:	PNP
Current - Collector (Ic) (Max):	1A
Voltage - Collector Emitter Breakdown (Max):	60V
Vce Saturation (Max) @ Ib, Ic:	500mV @ 50mA, 500mA
Current - Collector Cutoff (Max):	100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce:	40 @ 150mA, 2V
Power - Max:	1W
Frequency - Transition:	100MHz
Operating Temperature:	150°C (TJ)
Mounting Type:	Through Hole
Package / Case:	TO-226-3, TO-92-3 (TO-226AA)
Supplier Device Package:	TO-92-3
Base Part Number:	BC638

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Transistors - Bipolar (BJT) - SingleThe BC638BU is a single, bipolar junction transistor (BJT). It is a type of electronic component that works as a switch or amplifier and can be used for a variety of applications. This article will provide an overview of the BC638BU’s application field and working principle, as well as its advantages.Application Field and Working PrincipleThe BC638BU can be used in a number of different applications. Most commonly, it is used as a switch or amplifier. It can be used to switch signals between two points, or to increase the current or voltage of a signal. In addition, it can also be used in switching power supplies, radio-frequency amplifiers, and voltage limiters.The BC638BU is a NPN transistor and works using the principles of minority-carrier injection and charge transfer between two junctions. It consists of a base, a collector, and an emitter. When a voltage is applied to the base, it creates a small current that passes through the emitter and into the collector. This current then flows out of the collector to switch on or off other components or to amplify the voltage or current of a signal.AdvantagesThe BC638BU offers several advantages over other transistors. It has a large current gain, which makes it ideal for amplifying signals. In addition, it has a wide frequency range and can operate over a wide range of temperatures. Additionally, it is relatively inexpensive and easy to use, making it a popular choice for a number of applications.ConclusionThe BC638BU is a single, bipolar junction transistor (BJT) that can be used for a variety of applications. It is primarily used as a switch or amplifier, and can be used to switch signals between two points, increase the current or voltage of a signal, or for use in switching power supplies, radio-frequency amplifiers, and voltage limiters. The BC638BU offers a number of advantages, including a large current gain, a wide frequency range, and it can operate over a wide range of temperatures.

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