DDTC144TCA-7

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Discontinued at Digi-Key
Transistor Type:	NPN - Pre-Biased
Current - Collector (Ic) (Max):	100mA
Voltage - Collector Emitter Breakdown (Max):	50V
Resistor - Base (R1):	47 kOhms
DC Current Gain (hFE) (Min) @ Ic, Vce:	100 @ 1mA, 5V
Vce Saturation (Max) @ Ib, Ic:	300mV @ 250µA, 2.5mA
Current - Collector Cutoff (Max):	500nA (ICBO)
Frequency - Transition:	250MHz
Power - Max:	200mW
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	SOT-23-3
Base Part Number:	DDTC144

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The DDTC144TCA-7 is a single pre-biased bipolar junction transistor, or BJT, designed for use in a variety of applications. BJTs are three-terminal devices, usually comprised of a P-type semiconductor, or base, and two N-type semiconductors, or collectors. By applying a voltage to the base-collector junction, the transistor is “turned on”, allowing current to flow from the collector to the emitter. The DDTC144TCA-7 is pre-biased, meaning it includes an integrated resistor which applies a pre-defined voltage to the base-collector junction so that the transistor is inherently activated, allowing it to be used in a variety of applications.The DDTC144TCA-7 is generally used in audio amplifiers, small signal switching applications, linear power amplifiers and motor control circuits. In audio amplifiers, the transistor is used to control the current flowing in the collector-emitter path. This allows the amplifier to operate in linear mode, with low distortion, while producing high gain. The transistor is also used in small signal switching circuits to either amplify or attenuate the signal, depending on the input voltage. In linear power amplifiers, the transistor is used to regulate the current flowing in the emitter circuit, which is used to drive a higher-power load. Finally, the DDTC144TCA-7 is used in motor control circuits to regulate the current flowing in the motor, which is used to actuate mechanical devices.The importance of the DDTC144TCA-7 lies in its ability to provide low threshold bias voltages and high gain. The integrated resistor sets the bias voltage to around 0.2V and the gain is typically greater than 50. This allows the transistor to operate reliably at relatively low voltages and with high accuracy, making it ideal for use in a variety of applications.The basic mechanism of a BJT is based on the movement of charge carriers, or holes and electrons. When the input voltage is increased, the transistor is “turned on”, allowing holes and electrons to flow from the collector to the base and then to the emitter. This causes an increase in current flow at the output, allowing it to be used in various types of circuits.In addition to its ability to operate at relatively low voltages, the DDTC144TCA-7 also offers many other advantages. It is a high-efficiency device that operates at low thermal resistance and offers a high current rating, allowing it to be used in demanding applications. It is also highly reliable and offers good isolation properties, making it suitable for use in demanding environments.The DDTC144TCA-7 is a versatile device that can be used in a wide variety of applications. Its pre-biased nature allows it to be used in audio amplifiers, switching circuits, linear power amplifiers and motor control circuits. It offers a high current rating and good isolation properties, making it ideal for use in demanding environments. Finally, its low threshold bias voltages and high gain make it an ideal choice for a variety of applications.

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