... .Quality:100% new&original factory packaging 4.Warranty:60 days 2N2907 ST TO-18 New&Original in factory packagingDescriptions The 2N2905 ... and 2N2907 are silicon planar epitaxial PNP transistors in Jedec TO-39 ... (for 2N2905) and in Jedec TO-18(for 2N2907) metal case.They are designed for high speed saturated switching ...