Kynnysjännite
Kynnysjännite, often translated as threshold voltage, is a fundamental concept in solid-state physics and electronics, particularly concerning semiconductor devices like transistors and diodes. It represents the minimum voltage that must be applied across a junction or a device to initiate a significant flow of current or to induce a desired state of operation.
In the context of a p-n junction diode, the kynnysjännite, also known as the built-in voltage or
For a bipolar junction transistor (BJT), the kynnysjännite, often referred to as the base-emitter voltage ($V_{BE(on)}$),