BCR 198T E6327

DC Current Gain (hFE) (Min) @ Ic, Vce:	70 @ 5mA, 5V
Base Part Number:	BCR198
Supplier Device Package:	PG-SC-75
Package / Case:	SC-75, SOT-416
Mounting Type:	Surface Mount
Power - Max:	250mW
Frequency - Transition:	190MHz
Current - Collector Cutoff (Max):	100nA (ICBO)
Vce Saturation (Max) @ Ib, Ic:	300mV @ 500µA, 10mA
Series:	--
Resistor - Emitter Base (R2):	47 kOhms
Resistor - Base (R1):	47 kOhms
Voltage - Collector Emitter Breakdown (Max):	50V
Current - Collector (Ic) (Max):	70mA
Transistor Type:	PNP - Pre-Biased
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

The BCR 198T E6327 is a single, pre-biased Bipolar Junction Transistor (BJT) that features excellent stability and low noise operation. It also boasts reliable performance in a small package size, making it an ideal choice for a wide range of applications.

Applications

This device is suitable for a range of applications, including signal processing, audio, video, and radio frequency (RF) signal generation. It is commonly used in frequency conversion, amplifiers, and signal conditioning applications, as well as one- or two-stage amplification stages in audio or video circuits.Additionally, this device is also useful in multiplexer and demultiplexer circuits and as a ring modulator in radio generation applications. Its excellent characteristics make it an ideal choice for a range of other applications, including ultra-low noise switch designs and audio pre-amps.

Working Principle

The BCR 198T E6327 is a three-terminal BJT, which utilizes two pn-junction diodes. The collector, base and emitter terminals can be used to create a biasing circuit that allows current to flow from the base to the collector.The BJT relies on the fact that when a small forward bias voltage is applied to the base-emitter junction, a current will flow through the junction and the collector current will be amplified by the device. This is known as the \'collector current amplification factor\' or \'beta\', which determines the gain of the device and determines its performance in the application.The biasing of the BJT extends beyond the normal collector-base biasing. It requires a \'stabilization\' biasing voltage to prevent the device from going into cutoff or saturation, depending on the load. This additional biasing voltage is supplied either internally or externally.

Conclusion

Rugged, stable and compact, the BCR 198T E6327 is a single, pre-biased BJT that is well suited for a wide range of applications. It is used in signal processing, radio generation, and amplifiers, as well as other devices ranging from switch designs to audio pre-amps. It utilizes three terminals to provide a small forward bias voltage that facilitates current flow. Additionally, a stabilization biasing voltage is required to help prevent overcurrent or overflows in the device.

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