DRC5643T0L

Resistor - Base (R1):	4.7 kOhms
Base Part Number:	DRC5643
Supplier Device Package:	SMini3-F2-B
Package / Case:	SC-85
Mounting Type:	Surface Mount
Power - Max:	150mW
Current - Collector Cutoff (Max):	1µA (ICBO)
Vce Saturation (Max) @ Ib, Ic:	80mV @ 2.5mA, 50mA
DC Current Gain (hFE) (Min) @ Ic, Vce:	100 @ 50mA, 5V
Series:	--
Voltage - Collector Emitter Breakdown (Max):	20V
Current - Collector (Ic) (Max):	600mA
Transistor Type:	NPN - Pre-Biased
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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The DRC5643T0L is a high performance Bipolar Junction Transistor (BJT) and is classified as Single, Pre-Biased. It is designed to offer exceptional characteristics both in terms of its input and output performance, while at the same time retaining its cost effectiveness. The main focus of this device is on providing improved linearity and stability when used in various application fields, and it is capable of providing exceptional results in both low and high current applications.ApplicationsThe main application area of the DRC5643T0L is in wideband power amplifiers and power control circuits, where a fast switching time is desired. This BJT can be used in Class-A, Class-B and Class-AB Applications, with excellent dynamic frequency response at high power levels. Additionally, it also finds application in precision amplifiers and comparators, featuring optimized noise levels.Another widely used application for the DRC5643T0L is for modulation and switching circuits, as it features an extremely fast switching transition time. As such, it can be employed in digital-to-analog converters, pulse-width modulators, and time-delayed switching circuits.The DRC5643T0L can also be used in oscillator and sample & hold circuits, where it provides sufficient drive to the tuning elements. As its power dissipation is quite low, it also finds application in various high speed analog/RF circuits.Working PrincipleThe DRC5643T0L operates by using two p-n junctions that are connected in reverse order and are called the base and the collector. The base is connected with an external voltage source, and of the two junctions, it forms the largest current path. When this current is applied to the base, it causes the collector to become forward biased and it turns ON, allowing current to pass from it.The DRC5643T0L is also capable of functioning as a current amplifier, as it amplifies the current passing through it. This is achieved by the base-collector junction; when a current is applied to the base, it induces a larger current in the collector, thus amplifying it.It is important to note that the device must remain within the maximum collector current and voltage levels in order to operate smoothly. Additionally, it is important to maintain a sufficient voltage across the base-emitter junction for it to remain ON.ConclusionThe DRC5643T0L is a high performance BJT, classified as Single, Pre-Biased. It is designed to offer greatly improved linearity, stability and noise levels, while at the same time being extremely cost-effective. It is highly suitable for wideband power amplifiers, high and low power applications, modulation and switching circuits, oscillators, sample & hold circuits, and high speed analog/RF circuits. Its working principle is based on two p-n junctions that form the base and collector, with the base being connected to an external voltage source. Lastly, the device must be kept within the maximum collector current and maximum voltage levels in order for it to remain functional.

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