【 Weak current College 】 United States Semiconductor discrete devices designation 】

United States transistor or other semiconductor device naming method more confusion. United States electronic industries Association of semiconductor devices named as follows:
Part one: the symbol indicates that the device uses type. JAN-Corps, the Corps, JANTX-JANTXV-special corps, JANS-aerospace-grade, (no)-non-military goods.
Part II: use numbers to indicate the number of the pn junction. 1-diode, triode, 2 = 3-three n-n pn junction devices, a pn junction devices.
Part three: United States electronic industries Association (EIA) registration marks. N-the device is already in the United States electronic industries Association (EIA) registration.
Part IV: United States electronic industry association registration order number. Many digital-the devices in the United States electronic industries Association of the order of registration.
Part five: letter devices tranche. A, B, C, D, the ones ones-the same type of different stalls don't devices. Such as: PNP Silicon high-frequency JAN2N3251A represents small power switch transistor, JAN-Corps-, 2-triode, N-EIA registered marks, registration No., order 3251-EIA A-2N3251A stalls.