In the daily design work of electronic engineers, the selection of MOSFETs is often a key link, especially in high-frequency switching and high-current application scenarios such as inverter power supplies, DC-DC converters, and power switches. How to choose a MOSFET with excellent performance, controllable cost, and stable supply has become a challenge for many engineers. In recent years, with the rapid development of domestic semiconductor technology, enterprises like Feihong Semiconductor have launched a series of high-performance MOSFET products. Among them, FHP1404A is a product worth noting. This article will focus on analyzing the performance characteristics of FHP1404A and comparing it with the internationally renowned model IRF1404, helping engineers better understand its application value. ### FHP1404A: A Top Performer among Domestic MOSFETs FHP1404A is an N-channel trench process MOSFET launched by Feihong Semiconductor, specifically designed for high-power applications, particularly suitable for the front-end circuits of inverter power supplies. Its core advantages lie in low gate charge, low reverse transfer capacitance (Crss), and fast switching speed, making it perform excellently in high-frequency switching scenarios. Additionally, FHP1404A has passed 100% avalanche testing and features high dv/dt tolerance, ensuring its reliability under complex operating conditions. These characteristics make it an ideal alternative to IRF1404. ### Comparative Analysis with IRF1404 As an internationally renowned MOSFET model, IRF1404 has long held an important position in the market. However, with the advancement of domestic technology, FHP1404A has matched or even surpassed IRF1404 in several key parameters. Here are the main parameter comparisons: - **On-state Resistance (RDS(on))**: The RDS(on) of FHP1404A ranges from 2.5 to 3.3 mΩ, comparable to IRF1404, meaning that their power consumption is similar at the same current. - **Gate Charge (Qg)**: The gate charge of FHP1404A is 155 nC, slightly lower than IRF1404, giving it an advantage in switching speed, especially in high-frequency switching scenarios. - **dv/dt Tolerance**: FHP1404A has passed 100% avalanche testing and features higher dv/dt tolerance, ensuring its stability in complex applications like inverter power supplies. - **Cost and Supply**: As a domestic model, FHP1404A is more competitive in price, and Feihong Semiconductor provides stable supply support, avoiding production delays caused by stockouts. ### Application in Inverter Power Supplies The inverter power supply is one of the main application fields of FHP1404A. In the front-end circuit of the inverter power supply, the MOSFET needs to withstand high voltage and large current while having fast switching speed to reduce power loss. FHP1404A perfectly meets this requirement with its low RDS(on), low gate charge, and high dv/dt tolerance. Its excellent heat dissipation performance (junction-to-case thermal resistance is only 0.85°C/W) also ensures its stability during long-term high-power operation. ### Technical Support from Feihong Semiconductor In addition to the performance advantages of the product itself, Feihong Semiconductor also provides comprehensive technical support, including detailed data sheets, reference designs, and failure analysis services. This greatly facilitates engineers during the selection and design process. Moreover, Feihong Semiconductor offers free samples, allowing engineers to test the actual performance of the product and reduce the risk of selection. ### Conclusion In today's increasingly mature domestic semiconductor technology, high-performance MOSFETs like FHP1404A have become reliable choices for circuit design. With its excellent performance, competitive pricing, and stable supply, it is the preferred solution to replace IRF1404. If you are looking for a high-performance MOSFET for inverter power supplies or other high-power applications, consider FHP1404A. Search for "Feihong Semiconductor" on Baidu or call the free sample hotline: 400-831-6077, to learn more about the product information and apply for free samples.