PBLS1503V,115

DC Current Gain (hFE) (Min) @ Ic, Vce:	30 @ 5mA, 5V / 150 @ 100mA. 2V
Base Part Number:	PBLS1503
Supplier Device Package:	SOT-666
Package / Case:	SOT-563, SOT-666
Mounting Type:	Surface Mount
Power - Max:	300mW
Frequency - Transition:	280MHz
Current - Collector Cutoff (Max):	1µA, 100nA
Vce Saturation (Max) @ Ib, Ic:	150mV @ 500µA, 10mA / 250mV @ 50mA, 500mA
Series:	--
Resistor - Emitter Base (R2):	10 kOhms
Resistor - Base (R1):	10 kOhms
Voltage - Collector Emitter Breakdown (Max):	50V, 15V
Current - Collector (Ic) (Max):	100mA, 500mA
Transistor Type:	1 NPN Pre-Biased, 1 PNP
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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The PBLS1503V,115 is a high-performance Pre-Biased Array Transistor made up of an array of Bipolar Junction Transistors (BJTs). This model is designed to minimize noise and increase efficiency due to the pre-biased structure. Its applications range from powering DC converters to controlling audio frequencies, from high efficiency amplifiers to controlling analog circuits, from switching applications to automotive and industrial controllers.Working PrincipleThe main principle of the Pre-Biased Array Transistor is the internal pre-biasing of the base-emitter junction of the BJT and the base connection of two BJT series groups. This helps improve the voltage gain of the transistor. The internal pre-biasing of the base-emitter junction is also important in reducing the amount of noise generated from the transistor.The Pre-Biased Array Transistor contains two series connected BJTs, one NPN and one PNP, connected in a back to back configuration. The NPN BJT is reverse-biased by a fixed bias current. The current is fed to the emitter junction of the PNP BJT, and the voltage is developed across a resistor connected to the PNP base junction. This provides a positive bias for the PNP BJT.The two introduced bias currents are then balanced and applied to the base-emitter junction of both BJTs. This allows for a gain up to 15 times the current applied to the base-emitter junction of the PNP BJT. This increased voltage gain reduces the amount of noise generated by the transistor, compared to a single BJT.ApplicationsThe PBLS1503V,115 is typically used in applications where high efficiency and low noise are desired. It is often used to power DC-DC converters, such as those used in mobile phones or computers. It can also be used in audio PMICs and portable audio devices, such as MP3 players, to enhance the audio output by controlling the audio frequency and increasing efficiency.The PBLS1503V,115 is also suitable for amplifiers, as its high voltage gain and low noise generation contribute to increased efficiency and improved clarity. This makes it a popular choice for automotive and industrial applications, where precision, clarity and efficiency are desired. It can also be used for switching applications, such as with SSRs and relays.ConclusionThe PBLS1503V,115 is a high-preforming Pre-Biased Array Transistor made up of two series connected BJTs, one NPN and one PNP. Its features include high efficiency, low noise generation and high voltage gain. Its applications range from powering DC-DC converters to controlling audio frequencies, from high efficiency amplifiers to controlling analog circuits, from switching applications to automotive and industrial controllers. With its many uses, the PBLS1503V,115 is a versatile, reliable and highly efficient device.

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