Número de pieza	Fabricante / Marca	Breve descripción
BUL138	STMicroelectronics	TRANSISTOR NPN 400V 5A TO-220
BUL138(504B)	STMicroelectronics	BUL138504B STM IC ORIGINAL
BUL138(504B)(E)	STMicroelectronics	BUL138504BE STM IC TO-220
BUL138-547B	STMicroelectronics	BUL138-547B STM IC TO-220
BUL138-B	STMicroelectronics	BUL138-B STM IC DIP3
BUL138B	STMicroelectronics	BUL138B STM IC TR
BUL138D	STMicroelectronics	BUL138D STM IC TO-220
BUL138FP	STMicroelectronics	TRANSISTOR NPN 400V 5A TO-220FP
BUL138L	STMicroelectronics	BUL138L STM IC TO-220
BUL138XX	STMicroelectronics	BUL138XX STM IC TO-220
BUL138_01	STMicroelectronics	HIGH VOLTAGE FAST-SWITCHING NPN POWER TRANSISTOR IC
BUL139	STMicroelectronics	BUL139 STM IC TO-220