Device input protection circuit

An input protection circuit, comprising:

• a resettable fuse that acts as a current limit integrated circuit to maintain a maximum current so that said current limit integrated circuit functions in a normal range with less current;
• and
• a Zener diode that measures an input circuit voltage and controls a metal oxide semiconductor field-effect transistor to avoid impact with a signal input and thereby limits a voltage input and a current input associated with said input circuit while protecting components of said input circuit from damage, wherein said Zener diode comprises a low leakage current Zener diode.

An analog input protection circuit, comprising:

• a resalable fuse that acts as a current limit integrated circuit to maintain a maximum current so that said current limit integrated circuit functions in a normal range with less current;
• and
• a Zener diode that measures an analog input circuit voltage and controls a metal oxide semiconductor field-effect transistor to avoid impact with an analog signal input and thereby limits a voltage input and a current input associated with said analog input circuit while protecting components of said analog input circuit from damage.