How Do Transistors Work?
TVs, computer screens, phones, electric cookers, and nearly all other electronic gadgets rely on transistors to function properly. You won’t hear of transistors a lot unless your TV screen needs to be repaired. Transistors are small components that are found in the circuit boards of most electronic gadgets. Sometimes, a power surge can make the transistors blow up and leave your equipment not functioning. You will have to take your equipment to a qualified technician to replace the transistors or other components that may not be working.
All electronic equipment receive electronic signal through a motherboard or circuit board that is made up of transistors and other components such as diodes and capacitors. A transistor changes small electronic signals to a high or large output. Transistors come in different voltages, amperes and wattage. Moreover, they are assigned different part numbers. From the part number, you can know which types of gadgets a transistor is designed for. For your electronic equipment to work, a technician will have to ensure all transistors in its electric circuit board are working. The same type and part number transistor will have to be used for replacement.
When replacing any transistors, the technician should opt for a longer lasting component. However, the durability of a transistor is not determined by its wattage, amperes or voltage. A high specs transistor may be used on your gadget but blow up within a few weeks. To determine the longevity of a transistor, you have to check the information about it on the manufacturer’s datasheet. In the datasheet, a technician can read the lifespan of different transistors that can work for your gadget and suggest the best one to use for replacement. Long-lasting transistors come at a higher price than the common transistors.
How Are Transistors Manufactured?
Billions of transistors are manufactured every year. These components are flexible, reliable and cheap to manufacture. This explains why when they blow, they are simply discarded rather than repaired. However, the billions of transistors that are manufactured are not sold to the end consumer. Most of the transistors are sold to electronic equipment manufacturers who use them in their circuit boards. The components are quite small and hence can be used in the millions on an electrical circuit board. These components work together with other parts such as capacitors, diodes, and others to ensure proper flow or electrical signal on the circuit board.
All transistors have three layers that are usually made of a germanium semiconductor material. The layers have either positive or negative electrical attributes based on the impurities that are added to them. The positive or negative attribute of a transistor layer is designated as either “P” or “N” respectively.