If you would be repairing circuits, you need to be careful when choosing a replacement transistor. Replacement transistors are available in plenty. While there is usually a substantial level of overlap as far as the features of different brands of transistors is concerned, it is important not to choose just any type of gadget and hope for the best. Highlighted below are a few of the important things to consider prior to contacting and dealer.
Consider the type of JFET AMPLIFIERS used. Silicon and germanium are the basic types of semiconductor materials used to make such items. Since different types of materials perform differently, it is critical to research regarding the same to know what to expect. If you are concerned about diode drop, it is important to choose a gadget with that in mind. Silicon transistors have an emitter-base voltage of around 0.65V while germanium has an emitter-base voltage of approximately 0.2-0.3V. If you are unsure regarding the type of gadget that would work best for you, it is important to seek the assistance of a knowledgeable individual.
Take note of your application when choosing your VOLTAGE CONTROLLED RESISTORS. What do you want your gadget to do? It is obvious that getting an exact match for your intended purpose is going to be a challenge. However, this does not mean that you cannot find a gadget that would work well with your application. To be on the safe side, it is important to consider the type of application you have. Analogue, low power, low noise, and switching applications would require different types of transistors. It pays to factor in output capacitance, too. In most cases, a high capacitance slows down a transistor’s response. This usually causes dissipation/power loss.
Operating temperature range is another important factor to consider. You need to factor in the climatic conditions of your locality. If you would be using it in an extremely cold locality, you have to choose a transistor that would work at optimal efficiency in such temperatures. In case you would be installing the same under the hood of your car or in any other hot environment, it should be able to withstand a temperature of at least 100 degrees Celsius.
Consider cost before contacting any dealer. It is advisable to focus your search to affordable gadgets. Since high-quality and highly efficient gadgets are not cheap, it is important not to choose the cheapest items you can find. It pays to buy only what comes with a quality guarantee. Read this article about transistors: https://en.wikipedia.org/wiki/Transistor.