Número de pieza	Fabricante / Marca	Breve descripción
E-L4981A	STMicroelectronics	IC POWER FACTOR CORRECTOR 20-DIP
E-L4981AD	STMicroelectronics	IC POWER FACTOR CORRECTOR 20 SOIC
E-L4981AD013TR	STMicroelectronics	E-L4981AD013TR STM IC SOP7.2
E-L4981AD013TR(PB-	STMicroelectronics	E-L4981AD013TRPB- STM IC SOP7.2
E-L4981AD013TR(PB-FREE)	STMicroelectronics	E-L4981AD013TRPB-FREE STM IC SOP7.2