Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Transistor Type:	2 NPN (Dual)
Current - Collector (Ic) (Max):	200mA
Voltage - Collector Emitter Breakdown (Max):	160V
Vce Saturation (Max) @ Ib, Ic:	200mV @ 5mA, 50mA
Current - Collector Cutoff (Max):	50nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce:	80 @ 10mA, 5V
Power - Max:	200mW
Frequency - Transition:	300MHz
Operating Temperature:	-55°C ~ 150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	6-TSSOP, SC-88, SOT-363
Supplier Device Package:	SC-70-6
Base Part Number:	FFB5551

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Introduction

The FFB5551 is a type of transistor array, a type of bipolar junction transistor, that was developed by Fairchild Semiconductor in the mid-1980s to provide improved performance. This type of transistor array provides improved linearity and power efficiency, making it extremely popular in industrial applications. This article will discuss the applications of the FFB5551 transistor array and its working principles.

Applications of the FFB5551

The FFB5551 transistor array is widely used in a variety of industrial applications, including analog and digital signal processing. It is regularly used for audio-frequency amplifiers and for low-power radio-frequency communication systems. It is also used for video switching and audio switching, as well as a frequency multiplier in microwave and radio frequency systems.The FFB5551 transistor array is well suited for sensor applications. It is a great choice for speed and position sensors, as well as current, temperature, and strain sensors. It can be used to read or detect any type of current, temperature, or strain, converting it into a voltage that can be used for further processing.The FFB5551 transistor array is also used in motor control circuit applications. It is ideal for switching relays, electronic control circuits, and simple control systems. It can be used to provide control in motion systems and machines, such as those in automation and factory automation.

Working Principle of the FFB5551

The FFB5551 transistor array works on the principle of negative feedback. This is a type of control system used to ensure stability and accuracy in the operation of the circuit.The negative feedback system uses a series of connected elements, such as a voltage divider or resistor-capacitor network, to divide the input signal and feedback signal. The output of the system is then compared to the input signal. If the feedback signal is in phase with the input signal, then the output is kept stable. If the feedback signal is out of phase with the input signal, then the output is adjusted until the input signal and feedback signal are back in phase.In the case of the FFB5551 transistor array, the output signal is adjusted by the negative feedback system by changing the voltage and current between the base element and emitter element of the transistor array. This changes the output current and the output voltage of the circuit, providing the desired accuracy.

Conclusion

The FFB5551 is a popular type of transistor array developed by Fairchild Semiconductor. It offers improved linearity and power efficiency, making it popular for a variety of industrial applications, including audio-frequency amplifiers and low-power radio-frequency communication systems, video switching, and frequency multiplier for microwave and radio frequency systems.The FFB5551 transistor array works on the principle of negative feedback, using a series of connected elements to control the output of the circuit. The output signal is adjusted by changing the voltage and current between the base and emitter elements, providing the desired accuracy.

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