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What devices would you find transistors in?
Transistors are also found in pacemakers, hearing aids, cameras, calculators, and watches. Most of these devices draw their power from tiny batteries. Most spacecraft also rely on microchips, and thus transistors.
Are all transistors the same?
Select a replacement transistor of the same material: Most transistors are either silicon or germanium. As bias voltages and other features are different it is necessary to select a replacement transistor with the same material.
What is transistor performance?
Transistor performance is defined by a number of metrics including cut-off frequency, threshold voltage, “on” resistance, drive current and leakage. The different parameters affecting overall transistor performance are modeled to predict and verify circuit performance during the design phase of an IC.
How is the type number of a transistor determined?
The definitions of these parameters are outlined in the table below: Type number: The type number of the device is a unique identifier given to each type of transistor. This enables the full data on its specifications to be checked on the manufacturers transistor datasheet to investigate its performance.
What are the specifications of a bipolar transistor?
There are many different transistor specifications defining aspects of a bipolar transistor’s performance transistor to enable an informed choice of the right transistor for any circuit . There is a huge number of bipolar transistors available both leaded and surface mount devices.
How can you tell if a transistor is silicon or germanium?
Silicon or germanium: It is important to find out whether the transistor is silicon or germanium. It may be possible to discover this in a number of ways. If the original transistor is still working then this can be discovered by measuring the voltage across the base emitter junction when it is forward biased.
What happens if you install the wrong type of transistor?
Install the incorrect type and it experience the inverse of all the voltages it would expect and is likely to be destroyed. General application: Although it is not always necessary to exactly match the intended purpose for the transistor, a variety of areas of its performance will be tailored to its intended applications.