BC212BRL1G

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BC212BRL1G is a NPN general-purpose low-speed switching transistor with moderate gain. It is categorized as Single Bipolar (BJT) Transistor and is ideal for applications which require moderate gain and low speed switching. This switching transistor is essentially an amplifier operating in the switching mode as it switches between two operating states (ON and OFF).

What is BC212BRL1G?

BC212BRL1G is a transistor manufactured by NXP. It belongs to the single bipolar (BJT) category. BC212BRL1G is a low-speed switching transistors with moderate gains (beta ~25-100). This transistor is available in a TO-92 package with three pins. It is a pluggable lead type of mounting and has a flat base as well. The device also contains a SC-70 package. Apart from its versatile use, this transistor falls within the small signal type of transistors.

Functional Characteristics of BC212BRL1G

The transistor BC212BRL1G has a maximum collector current of 100mA, a collector-emitter voltage rating of 30V, and a DC current gain ranging from 25 to 100. The minimum and maximum transition frequency of this transistor is 300MHz and 3GHz, respectively. The Collector-base capacitance of the transistor is also relatively low, which is around 4pF. Additionally, The device can support a maximum collector dissipation of 350mW. The storage and operating temperatures of BC212BRL1G transistor are -65°C to +150°C and -65°C to +150°C respectively.

Applications

BC212BRL1G is suitable for number of applications such as for switching, amplifying and driving applications requiring moderate gain and low speed. This transistor can be used as an effective replacement for similar products from other vendors. It can be used in linear applications such as audio power amplifiers, ignition system, analog circuits and small signal amplifiers. This transistor can also be used for digital applications including switching and driving applications. Since this transistor has a low current gain (beta) and low capacitance value, it is not recommended for use in high frequencies. But it can be used in timing and race circuits due to its low speed.

Working Principle

The basic operation principle of this transistor is very simple. It acts as an amplifier, where the base terminal acts as an input and the emitter and collector terminals serve as output. The switching action of the transistor is achieved by the amplification of the base current. When the base current is increased, the emitter-collector voltage is increased, which results in the switching action of the transistor. When the base current is decreased, the emitter-collector voltage decreases, and the transistor switches off.

When the collector voltage is more than the base voltage, the collector current is said to be higher than the base current and thus, the transistor is said to be in the ON state and it will behave as a closed switch. When the collector voltage is less than the base voltage, the collector current is less than the base current, and the transistor is said to be in the OFF state, and it will behave as an open switch.

Conclusion

BC212BRL1G is a NPN general-purpose low-speed switching transistor with moderate gain which is categorized as a Single Bipolar (BJT) Transistor. It has a collector current of 100mA, a collector-emitter voltage rating of 30V and a DC current gain between 25 to 100. Its minimum and maximum transition frequency is 300MHz and 3GHz, respectively. This transistor can be used for both linear and digital applications such as audio power amplifiers, ignition system, analog circuits, small signal amplifiers, switching, driving applications and timing/race circuits. The basic operation principle of BC212BRL1G is the amplification of the base current, which leads to switching action of the transistor.

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