In the continuous improvement driven by the market, how can backup power supplies defeat competitors in real business situations? What is the core composition and how to choose a domestic replacement MDP1991 model MOS tube for use in the backup power circuit? For the low-voltage MOS tube market, most concerns about electromagnetic influence, efficiency drop, and poor heat dissipation must not be ignored. Ensuring the normal operation of backup power equipment absolutely requires top-quality replacement low-voltage MOS tubes. When replacing the MDP1991 model low-voltage MOS tube, backup power electronic designers need to carefully examine several key factors. The first is the performance parameters of the low-voltage MOS tube, such as whether the rated current reaches 172A, whether the rated voltage reaches 100V, etc. These parameters mainly affect the device's operating efficiency. FHP170N1F4A, a low-voltage MOS tube product suitable for backup power electronic designers with strict requirements. It is technically precise and compatible with MDP1991. Detailed parameters are as follows: 1. Current 172A, Voltage 100V 2. N-channel enhancement type 3. Static on-resistance RDS(ON): 3.6mΩ (Typ), 4.4mΩ (Max) 4. Maximum forward pulse current: 480A 5. Maximum gate-source voltage: ±20V 6. Achieves fast hard switching 7. VGS(th): 2.0-4.0V Following the introduction from the expert, since Feihong Semiconductor is a specialized manufacturer of low-voltage MOS tubes in Tonghua, Jilin, the FHP170N1F4A low-voltage MOS tube was chosen for the backup power supply. To enhance the power switch performance of the backup power circuit, Feihong Semiconductor strongly recommends selecting the FHP170N1F4A low-voltage MOS tube model. This low-voltage MOS tube with a rated current of 172A and a rated voltage of 100V effectively solves issues like product electromagnetic interference, efficiency drop, and poor heat dissipation. Backup power circuits can use the domestic FHP170N1F4A low-voltage MOS tube model. Feihong Semiconductor spares no effort to provide the most reliable component supply guarantees for backup power, motor drive, DC/DC converters, and other electronic manufacturers. For more details, you can also search "Feihong Semiconductor" on Baidu or call the free sample hotline: 400-831-6077!