RN2903,LF

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Transistor Type:	2 PNP - Pre-Biased (Dual)
Current - Collector (Ic) (Max):	100mA
Voltage - Collector Emitter Breakdown (Max):	50V
Resistor - Base (R1):	22 kOhms
Resistor - Emitter Base (R2):	22 kOhms
DC Current Gain (hFE) (Min) @ Ic, Vce:	70 @ 10mA, 5V
Vce Saturation (Max) @ Ib, Ic:	300mV @ 250µA, 5mA
Current - Collector Cutoff (Max):	500nA
Frequency - Transition:	200MHz
Power - Max:	200mW
Mounting Type:	Surface Mount
Package / Case:	6-TSSOP, SC-88, SOT-363
Supplier Device Package:	US6

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The RN2903 is a low-power, long-range, secure, LoRa Technology based transceiver that is designed for battery-operated applications. It is capable of bi-directional communication, so it can be used for monitoring and managing sensors. This transceiver is a type of Pre-Biased Bipolar Junction Transistor (BJT) Arrays, which are devices that are used to pass electrical signals from one circuit to another.The Pre-Biased BJT Arrays are transistors that can work in two ways, either in terms of current gain or voltage gain. The current gain is the ratio between the current flowing through the base-emitter junction of the transistor to the current flowing through the collector. The voltage gain is the ratio between voltage at the output of the transistor to the voltage at the input. This type of transistor is used in electronic circuits as they can be used to amplify signals.The RN2903 uses the current gain of Pre-Biased BJT transistors to increase the power efficiency of its transceiver. The input signal is first passed through a pre-biased BJT array which amplifies the weak signal to a higher strength. The amplified output is then used to drive the output stage. The RN2903 also uses a combination of capacitors and inductors to filter the signal, which makes it more reliable and efficient.The RN2903 transceiver operates on the 433MH/868Map-LoRa protocol, which has a long transmission range of up to 15 kilometers. It utilizes spread-spectrum technology with chirp spread spectrum (CSS) in order to effectively reduce its power consumption. As a result, it can stay connected to the base station and can maintain a connection even after passing through obstacles like walls and trees. In addition, the RN2903 supports digital signing and encryption to secure the data being transmitted.The RN2903 is an ideal device for battery-operated applications as it is extremely efficient and has a long-range transmission. This transceiver is designed to be low-power, allowing it to operate on a single battery and still have enough power to run all the necessary functions. This makes it suitable for applications such as automated meter reading, environmental sensing, and home automation. Additionally, its support for encrypted data and long-range transmission make it secure and reliable. The RN2903 is just one example of the Pre-Biased BJT Arrays that are used in a variety of applications, ranging from consumer electronics to industrial automation. These transistors are used to amplify signals and provide efficient power efficiency, allowing them to operate for long periods of time with minimal power consumption. As such, these transistors offer reliable and secure performance for applications that require long-range communications.

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