Cissoid has added Mars, a high temperature, 30V, small-signal P-channel MOSFET to its Planet family of high temperature transistors and switches. The CHT-SPMOS30 is suitable for long term reliable operation from -55 to +225°C. Input capacitance of 14pF and its gate leakage limited to 400nA at 225°C makes transistor suitable for high temperature sensor interfaces such as piezoelectric sensor or to implement guard amplifiers. This logic-level P-MOSFET sources up to 310mA at 225°C and can be used to switch medium or high resistances, such as converting a 3.3/5V logic signal to a high voltage open-source output with turn on or off times lower than 10ns. With the gate tied to the source, the MOSFET can also perform as a 30V small current diode for high reliability at high temperature. The MOSFET is in a TO-39 metal can package.
