AT-30533-BLKG

Series:	--
Packaging:	Bulk
Part Status:	Obsolete
Transistor Type:	NPN
Voltage - Collector Emitter Breakdown (Max):	5.5V
Frequency - Transition:	--
Noise Figure (dB Typ @ f):	1.1dB ~ 1.4dB @ 900MHz
Gain:	11dB ~ 13dB
Power - Max:	100mW
DC Current Gain (hFE) (Min) @ Ic, Vce:	70 @ 1mA, 2.7V
Current - Collector (Ic) (Max):	8mA
Operating Temperature:	150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	SOT-23

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AT-30533-BLKG Application Field and Working Principle

The AT-30533-BLKG are small-signal transistors designed specifically for radio frequency (RF) applications. The design enables them to operate in high frequency environments up to 500 MHz. To understand these transistors and their respective benefits, we need to understand the working principle of both the bipolar junction transistor (BJT) and radio frequency signals.

Bipolar Junction Transistors

A bipolar junction transistor (BJT) is a type of transistor which uses both electrons and holes as charge carriers. It works by allowing current to flow between two junctions, one made up of two P-type semiconductor materials and the other of two N-type semiconductor materials. A BJT\'s electrical properties make it ideal for use in an amplifier. When current is supplied between the emitter and the base of the transistor, the current is amplified at the collector. The amplification is an effect of the transistor\'s voltage gain, which determines how much the current at the collector is amplified compared to the current at the emitter. This property makes the BJT ideal for use in amplifying small signals.

Radio Frequency Signals

Radio frequency (RF) signals are electromagnetic waves in the frequency range from 3 KHz to 300 GHz, which can be used for both broadcasting and telecommunication purposes. Many of the components used for RF applications are frequency-dependent, so it is important to use components designed for this frequency range. The components used for RF applications must be designed to be less affected by temperature changes. This is because temperature changes can cause the components to behave differently, thus affecting the signal in an undesirable way. For this reason, components used for RF applications must be designed with high thermal stability and low temperature coefficient in order to be effective in this range.

AT-30533-BLKG Transistors

The AT-30533-BLKG transistor is a general-purpose small-signal transistor designed specifically for RF applications. It is manufactured using advanced semiconductor technology, making it suitable for use in high frequency environments up to 500 MHz. The AT-30533-BLKG transistors benefit from a wide operating temperature range of -55 to 175°C. This range ensures that the transistor maintains its performance over a wide temperature range, ensuring that the components used in the RF application remain consistent over the entire range. This makes them ideal for use in applications where temperature fluctuations are common. In addition to its wide temperature range, the AT-30533-BLKG transistors feature low parasitic capacitance, making them well suited for high frequency applications. The low capacitance ensures that the transistors do not cause any interference with the RF signal, allowing for a clean transmission and reception. The AT-30533-BLKG transistors are also designed to be highly stable, meaning that they retain their properties over long periods of time. This makes them ideal for use in long-term projects. The transistors can also handle large currents up to 200 mA, making them an excellent choice for applications where high current is needed.

Conclusion

The AT-30533-BLKG transistor is a highly versatile small-signal transistor specifically designed for RF applications. Its wide operating temperature range and low parasitic capacitance make it ideal for use in high frequency environments up to 500 MHz. Its high stability and large current handling capacity make it an excellent choice for both short-term and long-term projects. All of these features make the AT-30533-BLKG a great choice for RF-specific applications.

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