NSS40301MZ4

The NSS40301MZ4 is a high-performance N-channel MOSFET manufactured by onsemi, designed for efficient switching applications in power management systems. It features a low on-resistance of 3.5 mΩ at VGS = 10 V, enabling minimal conduction losses and high energy efficiency. The device operates with a maximum drain-source voltage (VDS) of 30 V and a continuous drain current (ID) of 62 A, making it suitable for high-current load-switching and DC-DC conversion circuits. This MOSFET utilizes advanced trench technology to optimize charge carrier mobility and reduce switching times, resulting in improved thermal performance and reliability under heavy load conditions. Its gate threshold voltage (VGS(th)) ranges from 1.0 V to 2.0 V, allowing compatibility with low-voltage control signals from microcontrollers or digital ICs. The fast switching speed and low gate charge (QG = 73 nC typ.) contribute to reduced switching losses, particularly beneficial in high-frequency applications such as switch-mode power supplies (SMPS) and motor drives. Packaged in a compact TO-220-3L form factor, the NSS40301MZ4 offers excellent thermal dissipation through direct mounting on heatsinks or PCB copper pours. It includes built-in protection against avalanche breakdown and has a maximum junction temperature of 175°C, ensuring stable operation across a wide range of environmental conditions. The device also exhibits robust ESD protection, enhancing its resilience during handling and integration into sensitive electronic systems. Common applications include automotive power modules, battery management systems, industrial power supplies, and consumer electronics where space efficiency, thermal stability, and high switching frequency are critical. Its design supports both synchronous rectification and high-side/low-side driver configurations, offering flexibility in circuit topology selection. The NSS40301MZ4 meets AEC-Q101 qualification standards, making it ideal for use in automotive-grade environments requiring long-term reliability and consistent performance under vibration, temperature cycling, and humidity exposure.