FZT491ATC

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Transistor Type:	NPN
Current - Collector (Ic) (Max):	1A
Voltage - Collector Emitter Breakdown (Max):	40V
Vce Saturation (Max) @ Ib, Ic:	500mV @ 100mA, 1A
Current - Collector Cutoff (Max):	100nA
DC Current Gain (hFE) (Min) @ Ic, Vce:	300 @ 500mA, 5V
Power - Max:	2W
Frequency - Transition:	150MHz
Operating Temperature:	-55°C ~ 150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	TO-261-4, TO-261AA
Supplier Device Package:	SOT-223
Base Part Number:	FZT491A

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FZT491ATC Transistors – Bipolar (BJT) – Single

The FZT491ATC model is a single, low power NPN bipolar junction transistor (BJT). It is designed to Work in a variety of applications including analog and digital electronic circuits, such as amplifiers, switches, drivers, relays, and power supplies.This BJT provides low power consumption and an optimal operating temperature range. With its low transitioning threshold voltage (Vt) and low current consumption (Icesat) it can be used in a variety of applications. The FZT491ATC model also features a wide range of performance benefits, such as fast switching times, high current transfer ratio (hfe), and a very low noise figure.

Properties of FZT491ATC

This NPN BJT has a wide range of properties and specifications, including hfe of 280, Forward Voltage (Vf) of 0.18 volts, and a Peak emission Current (Ipc) of 200mA. Furthermore, this transistor has a low and stable noise figure and a high Gain Bandwidth Product (GBWP). The FZT491ATC model is available in a variety of packages and sizes and can be used in both SMD and through hole devices. In addition, this device has a high thermal resistance (Rja) and a high current operation (Icesat).

Application Field and Working Principle for FZT491ATC

The FZT491ATC is suitable for a variety of applications, such as switching, amplifying, and driving of digital and analog signals. It is used in various digital and analog circuits, including power supplies, amplifiers, switching devices, and digital logic. This device works on the principle of PN-junction. When an electric voltage is applied to the P and N terminals, electrons will flow through the device and create current according to ohm’s law. This current flow can be used to switch between two different signals, amplify a weak signal, or drive a load. Due to its low Vt, low Icesat and high hfe, the FZT491ATC provides a high switching speed, low power consumption, and low noise level, making it suitable for a variety of applications.

Conclusion

The FZT491ATC is a single transistor device which belongs to the family of BJT transistors. It is an ideal choice for a variety of analog and digital circuits, due to its excellent characteristics such as low Icesat, low Vt, and high hfe. Its various properties and specifications make it suitable for various types of applications including switching, driving and amplification of digital and analog signals.

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