2N3904/3906 2N4401/4403 2N5401/5551 SMD Equivalent is MMBT3904/3906 MMBT4401/4403 MMBT5401/5551 The transistor part number nomenclature are: JIS, Pro Electron, and JEDEC. IS is an acronym for Japanese Industrial Standard, and it is used in Japan, Pro Electron is a European standard. JEDEC is a North American standard developed in the United...
