MMBT4403-7-F

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Transistor Type:	PNP
Current - Collector (Ic) (Max):	600mA
Voltage - Collector Emitter Breakdown (Max):	40V
Vce Saturation (Max) @ Ib, Ic:	750mV @ 50mA, 500mA
Current - Collector Cutoff (Max):	--
DC Current Gain (hFE) (Min) @ Ic, Vce:	100 @ 150mA, 2V
Power - Max:	300mW
Frequency - Transition:	200MHz
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
Base Part Number:	MMBT4403

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MMBT4403-7-F Application Field And Working Principle

When it comes to transistors, MMBT4403-7-F is a commonly used type of Bipolar Junction Transistor (BJT). This type of transistor is part of the \'Single\' classification of transistors, meaning it consists of only one emitter, base and collector. The MMBT4403-7-F is a \'NPN\' type transistor, meaning that the emitter-base connection is \'negative\' while the collector-base connection is \'positive\'. This type of transistor is mainly used in small power applications, such as amplifying small audio signals, and in small switch circuits. The working principle of the MMBT4403-7-F is relatively simple. In order for it to operate, it requires two different currents, the \'base\' current and the \'collector\' current. The base current itself is a relatively small current which is used to control the larger collector current and in turn the output of the transistor. This is done by applying a small voltage to the base-emitter junction, resulting in electrons being drawn from the emitter. These electrons are then \'drawn\' towards the collector, allowing for a larger current to flow through the collector-emitter junction. In terms of applications, the MMBT4403-7-F is mainly used in amplifiers and as an input stage to audio power amplifiers, due to its relatively low base current. It is also used as a switching device to control various electrical circuits, by using its ability to provide larger currents when a small voltage is applied. Additionally, the MMBT4403-7-F is also used as a switch to control the speed of motors, due to its fast switching time. In terms of safety, the MMBT4403-7-F should be handled with due care and attention as it can be damaged by electrostatic discharge (ESD). In addition, it should also be handled with insulated tools or gloves to avoid any short-circuits. Furthermore, the base voltage and collector voltage of the MMBT4403-7-F should be taken into consideration when connecting it to a circuit, in order to ensure that it is operating within the safe operating values. Overall, the MMBT4403-7-F is a useful and versatile type of Bipolar Junction Transistor, due to its small size, fast switching time and low base current. It is mainly used as an amplifier, switching device and as a control element in various electrical and electronic circuits. When using this type of transistor, it is important to ensure that it is handled safely and operated within its safe operating parameters, to ensure its reliability and performance.

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