In article ,
john carson wrote:

Hello group --- What is replacement for Toshiba K2746 transistor. John

It's almost certainly a 2SK2746: "Silicon N-channel MOS type field
effect transistor for high speed, high current switching, DC-DC
converter and motor drive applications" according to the info at
www.datasheetarchive.com. Maximum ratings are 800 volts, 7 amps DC,
21 amps pulse, 30 volts on the gate, 150 watts dissipation.

http://www.mark5.co.uk/ seems to have some in stock, but the prices
seem high. DigiKey carries the 2SK2746 but it looks as if they don't
care to sell them in quantities less than 3000 pieces, special-order
only.

It looks to me as if an International Rectifier IRFPE50 might quality
as a substitute (same voltage rating, same threshold-voltage range,
slightly better Rds(on), Id, and Pd ratings) - DigiKey has these in
stock for under $7 each.

One site suggests the SSM09N70F as a substitute.

--
Dave Platt AE6EO
Hosting the Jade Warrior home page: http://www.radagast.org/jade-warrior
I do _not_ wish to receive unsolicited commercial email, and I will
boycott any company which has the gall to send me such ads!