The IRF631 is an N-channel MOSFET transistor in a TO-220-3 package.

• Drain-to-Source Voltage: Has a drain-to-source voltage rating of 150V.
• Drain Current: Has a continuous drain current rating of 9A @ 25°C.
• On-Resistance: Has a maximum on-resistance of 400mOhm @ a drain current of 5A and a gate-source voltage of 10V.
• Gate Threshold Voltage: Has a gate threshold voltage of 4V.
• Power Dissipation: Has a power dissipation of 75W @ a case temperature of 25°C.
• Mounting: Is suitable for through-hole mounting.
• Applications: Is commonly used in applications requiring high power switching.