[bbrreid]

Hi,
can anyone out there help?
i have a Shibaura VMC4 by Toshiba circa 1983 and it has blown Transistors (2SD646A) on the spindle drive. i have looked all over for them or the equivalents.
thanks

[Al_The_Man]

If you get stuck you may want to look in the Motorola range of types MJ or MJH there is a source in the UK http://www.dialelec.com/index.html
It seems that they may be high voltage NPN darlingtons TO3?, if you do not need the high voltage look at something lower like MJ11030 etc.
Good luck.
Al

[unterhaus]

2SD is a Japanese transistor. Use to be, you could get them from MCM in Dayton.

[Al_The_Man]

Use to be, you could get them from MCM in Dayton.

He's in the UK.
Al

[unterhaus]

2SD646 NPN switching transistor
VCBO 600v
VEBO 5v
Ic 50A
Pc 400W(Tc=25ﾟC)
Tj 150 degrees centegrade
hFE >150
fab/ft* 5 Mhz
Cob 600pf
Pac. Dim. No 319

http://homepage3.nifty.com/ebina2540...D0601-0700.htm
Couldn't cross it easily, big voltage and amperage.

[Al_The_Man]

These show qty 41 in Canada. http://www.doom.com/search.php?q=2sd646a
Al

[bbrreid]

Thank you all for your replies, i will try these sites
cheers
brian