MMBT3904 _R1 _00001 MMBT3904 100-300 MMBT3904 100-300 1AM MMBT3904 1A MMBT3904 1AM MMBT3904 1AM 100-300 MMBT3904 1AM/SOT23 MMBT3904 1AW MMBT3904 200-300 MMBT3904 7AW