ECG products were bought out by NTE. Your same parts are available as NTE454, and NTE10. The data sheets are available online if you use the cross reference service below.
See cross reference at: http://nte01.nteinc.com/nte/NTExRefSemiProd.nsf/$$Search?OpenForm
can any one tell me about new replacment fopr these transister
if these numbers easly available
regards
MFE201, SK3991, or NTE454. N-Channel, dual-gate MOSFET
Q2 = 2SC2498, 2SC2570, 2N5179, SK9139, or NTE10
these all are very rare so it is quite diffcult and not available in pakistan