BF550,215

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Transistor Type:	PNP
Current - Collector (Ic) (Max):	25mA
Voltage - Collector Emitter Breakdown (Max):	40V
Vce Saturation (Max) @ Ib, Ic:	--
Current - Collector Cutoff (Max):	50nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce:	50 @ 1mA, 10V
Power - Max:	250mW
Frequency - Transition:	325MHz
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:	BF550

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The BF550,215 is a single bipolar transistor device that falls into the Transistors - Bipolar (BJT) - Single category. It is primarily used in a number of analog and solid-state applications including audio amplifier, current regulator family, differential amplifier, power amplifier, and power switch applications.The BJT transistors are commonly used in amplifying electrical signals, which allow a low level input current control to switch a larger current. The working principle of a bipolar junction transistor is based on the current amplifying ability of the particular device.The base of the transistor is connected to a source of current, which provides bias to the base. The base current is then amplified and controlled by the collector current. The emitter is usually connected to the input terminal, while the collector and the base collectively work to control the output.One of the primary advantages of the BF550,215 Single Bipolar Transistor is its small size, which makes it well suited for use in portable and other size-sensitive applications. This also makes it more affordable than other types of transistors. Another advantage of this device is its high gain-bandwidth ratio, which ensures better current control performance and therefore better audio amplifier output with reduced current consumption.The BF550,215 Single Bipolar Transistor offers high reliability and is often used when the operation of a circuit has to be continuous for long periods of time. It is also used for current regulation family applications, like battery charging circuits and current limiters, as it can regulate certain amount of current for long periods of time.It can also be used in differential amplifier circuits as it helps to eliminate any offset errors due to device mismatch. It works by amplifying the difference between two input currents, providing a much better signal-to-noise ratio or SNR.The device is also used in power amplifier applications, where it can switch between two different load currents. It works by applying a collector current to the load, which can be varied to meet the power requirements of the system.Furthermore, the device is also used in power switch applications, where it can be used to provide a short-term current burst of up to 5A and maintain safe load current control. This makes it useful for applications, such as thermal protection systems, where current burst needs to be controlled accurately.Overall, the BF550,215 Single Bipolar Transistor is an ideal choice for a number of analog and solid-state applications. It is small, reliable, and provides excellent current regulation, differential amplification and power switching capabilities.

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