CS90N03 B4 Power MOSFET Sourcing Guide for B2B Buyers

The CS90N03 B4 is a high-performance Silicon N-Channel Power MOSFET from CR Micro, designed for high-efficiency switching with a 25V/90A rating and a low typical $R_{DS(on)}$ of 4.8 mΩ. It is widely used in automotive electronics, DC motor control, and power management systems due to its robust trench technology and compact TO-252 (DPAK) package.

In the 2026 market landscape, the power MOSFET sector is seeing steady growth, projected to hit $30.3 Billion next year. While silicon MOSFETs like the CS90N03 series remain the backbone for low-voltage applications, the industry is strategically shifting toward Silicon Carbide (SiC) for high-voltage EV architectures and AI data center infrastructure. Procurement strategies are also evolving toward "Just-in-Case" models to safeguard against supply chain volatility and the rapid rise of Chinese manufacturers in the global top 20 rankings.

Detailed technical specifications, B2B sourcing data, and comprehensive market trend analysis are available in the report below.