UJ4N075005K4S

The UJ4N075005K4S is a high-performance N-channel MOSFET manufactured by onsemi, designed for efficient power switching applications. It features a maximum drain-source voltage (VDS) of 75 V and a continuous drain current (ID) of up to 4 A at 25°C, making it suitable for moderate-power circuits requiring reliable operation under varying thermal conditions. The device exhibits a low on-resistance (RDS(on)) of just 0.035 Ω at VGS = 10 V, minimizing conduction losses and enhancing energy efficiency in switching systems. This MOSFET is optimized for fast switching speeds, with a typical gate charge (Qg) of 16 nC, enabling reduced switching times and lower electromagnetic interference (EMI). Its robust construction supports operation across a wide temperature range from -55°C to +150°C, ensuring stability in harsh environments such as industrial automation, automotive electronics, and consumer power supplies. The TO-220 package provides excellent thermal dissipation and mechanical reliability, facilitating easy integration into printed circuit boards. Key features include a built-in body diode that allows freewheeling current flow, simplifying circuit design in inductive load applications like motor drives and DC-DC converters. The device also offers avalanche ruggedness, improving resilience against voltage spikes and transient overloads commonly found in real-world power systems. These characteristics make the UJ4N075005K4S ideal for use in switch-mode power supplies (SMPS), battery management systems, LED lighting drivers, and motor control modules. Its low gate threshold voltage (VGS(th) = 1.5 V minimum) enables compatibility with low-voltage logic drivers, reducing system complexity and cost. Additionally, the component complies with RoHS standards, reflecting onsemi’s commitment to environmentally responsible manufacturing practices. This combination of electrical performance, thermal robustness, and design flexibility positions the UJ4N075005K4S as a versatile solution for modern power management needs across multiple industries.