In the design of electronic circuits, the selection of field-effect transistors (MOSFETs) is crucial, especially in high-frequency inverter applications. With the continuous progress of domestic semiconductor technology, more and more engineers are paying attention to the performance and reliability of domestic MOSFETs. This article will focus on introducing Feihong Semiconductor's FHP1404V, discuss how it can replace HY4004, and analyze its advantages in high-frequency inverter applications. ### The Rise of Domestic MOSFETs In recent years, domestic semiconductor devices have made significant progress in terms of performance, reliability, and cost control. As one of the key packaging bases for domestic high-power MOSFETs, Feihong Semiconductor's product FHP1404V has gradually become an ideal alternative to HY4004 due to its advanced trench technology and strict testing standards. ### Technical Advantages of FHP1404V The FHP1404V adopts advanced trench technology, significantly reducing conduction losses while improving switching performance and avalanche energy. Its TO-220 package complies with JEDEC standards and meets RoHS and REACH environmental protection standards. Here are the main technical parameters of FHP1404V: - **Voltage and Current**: Maximum drain-to-source DC voltage (VDS) is 45V, with continuous drain current (ID) reaching up to 250A at TC=25°C. - **Conduction Characteristics**: Static on-resistance (RDS(ON)) is 1.95~2.5mΩ at VGS=10V, ID=50A. - **Dynamic Characteristics**: Total gate charge (Qg) is 160nC, and turn-on delay time (td(on)) is 52ns. - **Thermal Characteristics**: Junction-to-case thermal resistance (Rth(j-c)) is 0.48°C/W. ### Advantages in High-Frequency Inverter Applications In high-frequency inverter applications, FHP1404V performs exceptionally well. Its low on-resistance (RDS(on)) and efficient switching performance enable a significant improvement in the efficiency of the DC/DC push-pull topology boost circuit in vehicle-mounted high-frequency inverters powered by 12V batteries. Additionally, FHP1404V’s high avalanche tolerance and impact resistance ensure stable system operation in high-power environments. ### Selection Recommendations When selecting FHP1404V as a replacement for HY4004, engineers should pay attention to the following points: 1. **Parameter Matching**: Ensure that the voltage, current, and on-resistance parameters of FHP1404V meet the application requirements. 2. **Heat Dissipation Design**: Reasonably design the heat dissipation plan to ensure stable operation of the device in high-power environments. 3. **Supply Stability**: Choose a reliable supplier to ensure delivery cycles and product quality. ### Conclusion Feihong Semiconductor's FHP1404V, with its outstanding performance and reliability, is an ideal alternative to HY4004. In high-frequency inverter applications, FHP1404V can significantly enhance system efficiency and stability. If you are looking for high-performance domestic MOSFETs, consider FHP1404V. Visit "Feihong Semiconductor" on Baidu or call the free sample hotline: 400-831-6077 to learn more about the products and apply for free samples.