 Flicker noise is often characterized by the corner frequency "f"c between the region dominated by the low-frequency flicker noise and the higher-frequency "flat-band" noise.MOSFETs have a higher "f"c (can be in the GHz range) than JFETs or bipolar transistors, which is usually below 2 kHz for the latter.It typically has a Gaussian distribution and is time-reversible.