FMMT614QTA

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Transistor Type:	NPN - Darlington
Current - Collector (Ic) (Max):	500mA
Voltage - Collector Emitter Breakdown (Max):	100V
Vce Saturation (Max) @ Ib, Ic:	1V @ 5mA, 500mA
Current - Collector Cutoff (Max):	10µA
DC Current Gain (hFE) (Min) @ Ic, Vce:	15000 @ 100mA, 5V
Power - Max:	500mW
Frequency - Transition:	--
Operating Temperature:	-55°C ~ 150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	SOT-23-3

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。FMMT614QTA Application Field and Working PrincipleThe FMMT614QTA is a kind of NPN silicon planar transistor, which is typically used to switch or amplify electronic signals. It belongs to the family of single bipolar transistors (BJT), and is one of the most critical elements in modern electronic designs. This article provides an overview of the application field and the working principles of the FMMT614QTA. Applications AdvertisementThe FMMT614QTA has a high gain-bandwidth and a wide operating range, which makes it suitable for a variety of applications. It is primarily used in amplification, switching and constant current source applications, as well as for various advanced device functions such as logic, memory, and signal processing. Additionally, it can be employed in industrial machines and office equipment, such as electronic cash registers, hand-held devices, calculators, computers, and voltage regulators.It can also be used in low noise preamplifier and AF, audio amplifier and switching circuits, as well as in line drivers, voltage regulators, and power supplies. It is also suitable for radiation-proof applications that require high current, low saturation voltage, and very fast switching speed.Transistor BasicsA FMMT614QTA transistor is a three-terminal device, consisting of a collector, a base, and an emitter. It works by controlling the current flowing through the circuit with a small current applied at the base. This is done by using the electrodes, which can act as an open or closed switch that allows a larger current to flow when closed. A transistor can be used as an amplifier or a switch, depending on the value of the base current. For example, when the base current is larger, the device works as an amplifier. Conversely, when the base current is low, the transistor works as a switch.Working PrinciplesThe working principle of a FMMT614QTA transistor is based on the operation of PN junctions. The PN junction is essentially a semiconductor junction between two regions: a positively-doped region (the emitter) and a negative-doped region (the collector).The base is a lightly doped region, with a very low concentration of charge carriers. When a small current is applied to the base, it creates an electric field that attracts charge carriers from the emitter, which then travel through the collector region. This current flow in the collector region is the amplified signal, and it can be used to switch or amplify the input signal.ConclusionThe FMMT614QTA is a versatile single bipolar transistor with a wide range of applications. It can be used for switching, amplifying, and noise-free preamp applications, as well as for various advanced device functions. Primarily, its working principle is based on the operation of PN junctions, which allows it to control the current through the transistor by applying a small current to the base. This makes the FMMT614QTA an excellent choice for both digital and analog electronic designs.

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