Overseas silicon carbide components have long been troubled by unstable delivery cycles, excessive procurement costs and supply chain risks. Manufacturers of high-power DC charging piles and ultra-fast charging modules are confronted with unstable material supply and high expenditure for product upgrading. With the maturity of China’s whole industrial chain including SiC wafer manufacturing, chip design and packaging testing, domestic SiC components have reached equivalent electrical performance to imported counterparts, forming a feasible solution for hardware upgrading of charging equipment.

Domestic SiC MOSFETs and SiC Schottky diodes feature outstanding wide-bandgap characteristics with far lower switching and conduction losses than conventional silicon-based IGBTs, pushing the power conversion efficiency of charging piles above 98%. The increased operating frequency effectively reduces the size of passive components such as transformers and inductors and simplifies the overall heat dissipation system. PIN-to-PIN compatible replacement can be realized without PCB modification, cutting extra expenses on circuit redesign and product recertification, and ensuring stable operation of existing production lines.

Charging piles operate outdoors all year round under harsh conditions including high temperature exposure, sharp temperature differences and grid surge interference. Domestic SiC products pass standardized reliability tests such as HTOL high-temperature aging, thermal shock, high-voltage avalanche test and full-load burn-in. Their performance drifts slightly under high-temperature working conditions, supporting continuous full-load operation of charging piles and effectively reducing on-site breakdowns and after-sales maintenance costs.

We provide full-lifecycle support covering parameter comparison, sample verification, system debugging and mass delivery for SiC localization replacement. Manufacturers can carry out phased upgrading from silicon devices to SiC solutions, securing supply chain safety while lowering overall equipment costs to match the development trend of high-power fast charging and 800V high-voltage charging platforms.