![]() Gain/Efficiency: ratio of the power turned into sound to the total power consumed by the amplifier.The maximum continuous output power: defines how loud the amplifier can be, often specified for different load impedances, distortion levels, and supply voltage configurations.While selecting a transistor for amplification, some of the key points to consider are: Here, we can use an S8050 NPN transistor along with a complementary PNP transistor of the same operational characteristics to design a Class B push-pull amplifier. As one pushes the current through the load and another does the opposite, it is called a push-pull amplifier. The NPN transistor gets forward biased during the signal’s positive half cycle, and the PNP transistor operates during the negative half cycle. S8050 is mainly used as Class B Push-Pull amplifiers.Ĭlass B push-pull amplifiers make use of two complementary transistors (one NPN + one PNP) connected in a fashion with the voltage source and load, as shown below.īoth receive the same power signal but in opposite phases to each other. Using transistors, such as the S8050, is the most popular one. There are different ways to design amplifiers. There are four different categories of amplifiers as follows: One of the common applications is audio amplifiers such as loudspeakers and headphones. Using NPN transistor as Class B Push-Pull AmplifierĪmplifiers are used to power up the low power signal to a high power signal. Before we analyze the S8050 datasheet, let’s discuss some basic principles behind its usage. With a high DC gain of 300, S8050 finds its major application as an amplifier for boosting low signals, such as audio amplifiers. S8050 is a bipolar junction transistor where electrons are major carriers, and holes are minor carriers. Output stage of small audio projects and circuitsĮlectronics components perform very well in circuit for a long period of time if all the safety measures are taken in consideration at the time of designing and making the circuit, to make this transistor long run in your electronic application it is recommended to not use it in the circuit above 20V, and do not increase the output load from -700mA, always use a good current limiting resistor at the base of the transistor, and do not use it in the temperature above 150 centigrade and below -65 centigrade.The S8050 is a low voltage, high current NPN transistor that can be used as Class B push-pull amplifiers. ![]() Moreover it can also be used as an alternative or equivalent to many other general purpose transistors and it is also an ideal transistor to use in your hobby electronic projects, therefore it is a must to have transistor in your electronics lab. If you want to use it as a switch then you can easily drive big relays, many small LEDs at once and One or two high power LEDs around 10 to 20 watts, switching ON an another portion or application in an electronic project / circuit etc. S8550 is a general purpose transistor therefore you can use it at the output of your audio amplifier circuits to amplify the output audio signal to 1 watt, for example it can used in electronic doorbell circuits, mp3 audio amplifiers and in the output of buzzer circuits etc. The max gain of the transistor is 400 which is also a plus point of this transistor. The max collector current is -700mA hence it can also be used for variety of switching application in electronic circuits. The S8550 possess some very good features in its small TO-92 package therefore it can be used in many electronics applications for example the output dissipation is 1 watt which is very good feature to use it for amplification of audio signal to around 1 watt and also in many other audio amplification stages. It is designed for audio amplification and other general requirements in electronic circuits but apart from that it is also used widely in commercial appliances. Like S8050, its PNP alternative S8550 is also a widely used transistor, it is a reliable low cost transistor with very good technical characteristics. S8550 Transistor Explained / Description:
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