PET2000-12-074NA 开关电源 Bel Power Solutions MBC60-3002G MBC60-3003G MPB125-1012G MPB125-2005G MPB125-2012G MPB125-2024G MPB125-2048G MPB125-3000G MPB125-4350G MPB125-4350RG MPB150-2012G MPB150-2024G MPB150-2048G MPU150-4000 MPU150-4350 MPU150-4350G MPU200-1012G MPU200-1024G PET1600-12-074NA PET2000-12-074NA PET800-12-074NA PFC250-1005 PFC250-1015 PFC250-1024 PFC250-1024F PFC375-1012 PFC375-1024 PFC375-1024F PFC375-4000 PFC375-4000F PFC375-4002 PFC375-4200 PFC375-4200F PFC375-4201 PFC375-4201F PFC500-1024 PFC500-1024F PFC500-1028F PFC500-1048 PFC500-1048F