The 2N7000, 2N7002, NDS7002A, 7002 is an N−channel enhancement mode field effect transistors are produced using ON semis proprietary, high cell density, DMOS technology.
The 2SD880 transistor can have a current gain of 60 to 300. The gain of the 2SD880O will be in the range from 60 to 120, for the 2SD880Y it will be in the range from 100 to 200, for the 2SD880GR it will be in the range from 150 to 300.
The 2SK2508, 2SK-2508, K2508, 2508 is a 250V 13A 45W TO-220NIS Package, This is a shortly to be discontinued. For new designs, the following product(s) should be used instead of this product.