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The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
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A junction FET is widely used for impedance conversion. What is it for?

Generally, the gate input terminal (G) of an FET has high impedance. A typical application of a junction FET is a source follower circuit where an output load resistor is connected to the source (S) terminal as shown below. Its gain is approximately 1.

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