The maximum operating temperature range for the 2N7002E is -55°C to 150°C, but it's recommended to operate within -40°C to 125°C for optimal performance.
While the 2N7002E can be used as a switch, it's not ideal for high-frequency signals due to its relatively high capacitance and inductance. For high-frequency applications, consider using a dedicated high-frequency switch or a different MOSFET with lower parasitic capacitance.
To ensure the 2N7002E is fully turned on or off, apply a gate-source voltage (Vgs) of at least 4.5V for a logic-level input, and 10V for a standard-level input. Also, ensure the gate drive is strong enough to charge the gate capacitance quickly.
The maximum current rating for the 2N7002E is 500mA, but it's recommended to derate the current based on the operating temperature and PCB layout to ensure reliable operation.
While the 2N7002E can be used in a linear amplifier circuit, it's not the best choice due to its relatively high drain-source resistance (Rds(on)) and limited linear region. Consider using a dedicated linear amplifier transistor or a MOSFET with a lower Rds(on) and a more linear transfer characteristic.
2N7002E datasheet
by NXP Semiconductors
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