The AC 380V auxiliary power supply is mainly used in industrial, commercial, and infrastructure fields where high requirements are placed on power capacity, stability, and reliability. Its higher voltage level can reduce line losses and transmit greater electric power.

Therefore, it is very important to ensure the stable availability of the product, and the key to ensuring stability in circuit design lies in selecting a good MOSFET product. The available products include models such as 2SK1317 and FHA3N150A.

Among these two products, the parameter of the FHA3N150A model, which is purely domestic, can replace the 2SK1317 product. Why is it recommended to replace it with this one?

Because in addition to the basic parameters of 3A and 1500V, it also has excellent product characteristics:

1. Low on-state resistance

2. High dv/dt capability

3. Low Crss (typical value 32 pF)

4. 100% EAS test (strong impact resistance)

5. 100% DVDS thermal resistance test (good heat dissipation performance)

6. 100% Rg test

7. Meets industrial-grade reliability requirements

Of course, in addition to its excellent features, the FHA3N150A can replace the 2SK1317 high-voltage MOSFET model due to its superior parameters:

1. N-channel enhancement-mode field-effect transistor

2. Maximum gate-source voltage Vgs (±V): ±30V; VGS(th): 2.0-4.0V;

3. Maximum pulse drain current (IDM): 12A

4. ID(A): 3A; BVdss(V): 1500V

5. TO-247 package product

6. Reverse transfer capacitance: 32pF

7. Static on-resistance RDS(ON): 5Ω(Typ), 6.5Ω(Max) (test conditions: VGS=10V, ID=1.5A)

Therefore, for those who want to choose a replacement for the 2SK1317 field-effect transistor to be used in the 380V auxiliary power supply circuit, it is recommended to directly select the cost-effective FHA3N150A field-effect transistor.

Feihong Semiconductor provides professional products for electronic manufacturers and offers one-stop service for power device procurement, always starting from user needs.

Its excellent manufacturing process and parameter performance make it better suited for 380V auxiliary power supply circuits, ensuring product reliability.

The rapid iteration of the domestic market emphasizes the importance of selecting the right model. Feihong Semiconductor's MOSFETs have been widely applied in power circuits, smart home appliances, new energy electronics sectors: such as automotive electronics, electric vehicles, chargers, computer power supplies, and other industries, providing high-quality products and services to domestic electronic product manufacturers. In addition to offering free samples, we can also customize MOSFET products according to customer needs. Simply search for "Feihong Semiconductor" on Baidu to find us. Free trial hotline: 400-831-6077.