Introduction to S8550
- S8550 is a PNP transistor henceforth during reverse biasing both the collector and emitter will be open and during forward biasing these will be closed.
- It is produced in a flexible TO-92 casing. When we observe the smooth side with the leads piercing descending, the three leads emergent from left to right are named as Emitter, Base and Collector.
- It is PNP generally used a transistor, it is a dependable less costly transistor having a good practical feature.
- It is premeditated for the acoustic intensification and other common desires in electronic circuitry It is also used in salable employments.
- It is the greatest selection for diverse electronic circuits as it has dissipation factor 1 Watt so it is respectable for strengthening of the acoustic signal to about 1 Watt.
- The maximum current which can collector cab bear is 700mA due to this is used for large no of switching solicitation in electronically circuits.
- Gain value for this transistor is 300, which make it superior to other transistors.
Pinout of S8550
- These are some important pinout of S8550.
Pin# Type Parameters Pin#1 Emitter Emitter is for current drainage out. Pin#2 Base The base controls the biasing of the transistor. it is used to on and off of the transistor. Pin#3 Collector The collector is for the current inward movement. It is connected with the load.
Features of S8550
- These are the main features of S8550.
- It exists in TO-92 cascading.
- It is a push-pull arrangement class B intensifier.
- It is a PNP transistor.
- The extreme assessment of the collector’s current is -0.7A or -700mA.
- It has extreme emitter to collector voltage (VCE) -20V.
- Its emitter to base voltage is (VBE) -5V.
- The value of Vcb voltage is -40V.
- Power Dissipation aspect of its collector is one watt.
- The value of the gain of current is (hFE) 40 To 400.
- It's extreme storing and the working temperature is -65 to +150 C.
Working of S8550
- Now we discuss its working.
- As stated in the above heading the S8550 transistor is usually used in push-pull arrangement with Class B amplifier. So let’s discuss how it works.
- A push-pull amplifier, usually recognized as Class B amplifier, it is a category of the multistage amplifier which is used for acoustic intensification of megaphones.
- It is very easy to build and needs two indistinguishable flattering transistors.
- By admiring it means that we require an NPN transistor and its corresponding PNP transistor. Alike now the NPN transistor is S8050 and its corresponding PNP transistor is S8550.
- A circuit diagram of the Class B amplifier with the S8550 is given a blow.
Applications of S8550
- It is used in Acoustic Intensification Circuitries.
- It is a class B amplifier.
- It is a push-pull transistor.
- It is used in such circuits where high is need.
- It is used in fewer signal submissions.
- It consumes load current under -700mA.
- It is used in different circuits as a switch.
- It amplifies low gain signals to high gain.