STMicroelectronics

STP14NF12FP

STP14NF12FP Description

The STP14NF12FP from STMicroelectronics is an N-channel 120V, 8.5A power MOSFET housed in a TO-220FP package, designed for high-efficiency switching applications. Part of the STripFET™ II series, it leverages advanced Metal Oxide Semiconductor (MOSFET) technology to deliver low on-resistance (180mΩ @ 7A, 10V) and high-speed switching performance. Although marked as Obsolete, it remains a robust choice for legacy designs due to its 25W (Tc) power dissipation capability and ±20V gate-source voltage (Vgs) tolerance. The device is ROHS3 Compliant and REACH Unaffected, ensuring environmental compliance.

STP14NF12FP Features

• Low Gate Charge (Qg): 21nC @ 10V minimizes switching losses, enhancing efficiency in high-frequency circuits.
• Low Input Capacitance (Ciss): 460pF @ 25V reduces drive requirements, simplifying gate drive circuitry.
• High Voltage Handling: 120V Vdss and 8.5A continuous drain current (Id) make it suitable for medium-power applications.
• Optimized Thermal Performance: TO-220FP package improves heat dissipation, critical for sustained operation.
• Wide Vgs Range: ±20V offers flexibility in drive voltage selection.
• Low Threshold Voltage (Vgs(th)): 4V @ 250µA ensures compatibility with low-voltage control signals.

STP14NF12FP Applications

Ideal for DC-DC converters, motor control, and power management systems, the STP14NF12FP excels in:

• Switching Power Supplies: Low Rds(on) and Qg improve efficiency in SMPS designs.
• Automotive Systems: Robust voltage handling suits 12V/24V automotive loads.
• Industrial Drives: High current capability supports solenoid/relay drivers.
• Renewable Energy: Used in solar inverters and battery management due to its reliability.

Conclusion of STP14NF12FP

While obsolete, the STP14NF12FP remains a high-performance MOSFET for legacy or cost-sensitive designs. Its low conduction losses, fast switching, and thermal resilience make it a dependable choice for medium-power switching applications. Engineers seeking alternatives should consider newer STripFET™ III variants, but this model’s proven performance ensures continued relevance in specific use cases.