FMMT558QTA

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Transistor Type:	PNP
Current - Collector (Ic) (Max):	150mA
Voltage - Collector Emitter Breakdown (Max):	400V
Vce Saturation (Max) @ Ib, Ic:	500mV @ 6mA, 50mA
Current - Collector Cutoff (Max):	100nA
DC Current Gain (hFE) (Min) @ Ic, Vce:	100 @ 50mA, 10V
Power - Max:	500mW
Frequency - Transition:	50MHz
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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README
This article will discuss the application field and working principle of the FMMT558QTA transistor. The FMMT558QTA is one of the many types of single bipolar junction transistors (commonly referred to as BJTs). It is typically designed for use in a variety of general-purpose applications. The FMMT558QTA is an NPN type, low-power transistor designed for use in audio amplifiers and high-speed switching applications. It has a Collector-Emitter voltage of 50V and a Baker voltage of 30V with a Fairchild DC current rating of 700mA. It is a medium power, silicon epitaxial type transistor with a gain band of 200 to 400. The FMMT558QTA is a three-terminal device composed of a base, collector and emitter terminal. The base terminal is used to control the operation of the transistor by activating and deactivating it. The collector terminal is used to gather the electrons emitted by the base and the emitter terminal is used to release these electrons, thereby changing the overall state of the device. The FMMT558QTA has two main types of operation: it can be used either as an amplifier or as a switch. In amplifier mode, a signal is applied to the base which, in turn, moves electrons from the collector to the emitter. The gain of this transistor is proportional to the ratio of the current flowing from the collector to the emitter. In the switching mode, current is applied directly to the base terminal, thereby flipping the state of the transistor between on and off. This is used in applications such as driving LEDs, signal detectors and signal transistors. The FMMT558QTA is also used in a variety of other applications such as audio amplifiers, inverters and power supply circuits. It also can be used in high-frequency switching applications where switching speed is of utmost importance. Its high switching speed is due to its low transition times between the on and off state. The FMMT558QTA is a versatile device with many possible applications. It is relatively easy to use and its simple design makes it easy to integrate into many different types of circuits. Its reliability and performance make it a popular choice in a variety of applications.

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