IRFB4227PBF is a 600V high-voltage MOSFET from Infineon (formerly IR), widely used in PFC boost, server power supplies, industrial power supplies and AI power systems. Driven by strong demand from AI servers, data center power supplies, energy storage chargers and industrial applications, 600V high-voltage MOS capacity has been heavily consumed. Original lead times have extended and spot stock remains tight, with some lots showing price increases.                                        Among our authorized brands, CR Micro, Silan and Oriental Semi can provide compatible 600V high-voltage MOSFET solutions for server power supplies, industrial control power supplies and PFC boost circuits.