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high voltage, low current transistors?

S

Smitty Two

Jan 1, 1970
0
OK, so my boss asked me to source some transistors that operate in the
100 volts plus, sub 100 micro amp range. Has he been drinking too much
Pepsi, or do such things actually exist? (remove first h for email)
 
S

Spehro Pefhany

Jan 1, 1970
0
OK, so my boss asked me to source some transistors that operate in the
100 volts plus, sub 100 micro amp range. Has he been drinking too much
Pepsi, or do such things actually exist? (remove first h for email)

MMBTA42 (SMT)
MPSA42 (TO-92)

Around a nickel US or less in moderate volume.


Best regards,
Spehro Pefhany
 
W

Watson A.Name - \Watt Sun, the Dark Remover\

Jan 1, 1970
0
Smitty Two said:
OK, so my boss asked me to source some transistors that operate in the
100 volts plus, sub 100 micro amp range. Has he been drinking too much
Pepsi, or do such things actually exist? (remove first h for email)

The MPSA42 (NPN) and MPSA92 (PNP) are both capable of handling 300V and
sub milliamp currents. They are available in quantities of 100 or so on
Ebay.
 
G

Geir Klemetsen

Jan 1, 1970
0
Smitty Two said:
OK, so my boss asked me to source some transistors that operate in the
100 volts plus, sub 100 micro amp range. Has he been drinking too much
Pepsi, or do such things actually exist? (remove first h for email)

Unmount a CRT-screen/tv and look for the printcard mounted on the rear end
of the CRT tube. On that card, you'll find three transistors that operates
well for high voltage and low current.
 
W

Watson A.Name - \Watt Sun, the Dark Remover\

Jan 1, 1970
0
Geir Klemetsen said:
Unmount a CRT-screen/tv and look for the printcard mounted on the rear end
of the CRT tube. On that card, you'll find three transistors that operates
well for high voltage and low current.

The threee transistors that drive the three colors are made to dissipate
quite a bit of power, and are not low current. They have load resistors
that are power resistors, and handle several watts.
 
S

Smitty Two

Jan 1, 1970
0
"Watson A.Name - \"Watt Sun, the Dark Remover\""
The MPSA42 (NPN) and MPSA92 (PNP) are both capable of handling 300V and
sub milliamp currents. They are available in quantities of 100 or so on
Ebay.

I'll go with the audience, Meredith. Forwarded the data sheets on the
MPSA42/92 to the man upstairs and got them rubber-stamped. Thanks,
audience!!! Watson and Spehro saved me a lot of work!
 
G

Geir Klemetsen

Jan 1, 1970
0
"Watson A.Name - "Watt Sun, the Dark Remover"" <[email protected]> skrev
i melding
----
The threee transistors that drive the three colors are made to dissipate
quite a bit of power
Correct
And are not low current.
I'm disagree. Read the specs for them. Mostly, they wont be able to draw
more than 100 - 200 mA.
They have load resistors that are power resistors, and handle several
watts.
That is right. You are dealing with power transistors: High voltage an not
so high current.
 
R

redbelly

Jan 1, 1970
0
Geir said:
Read the specs for them. Mostly, they wont be able to draw
more than 100 - 200 mA.

The OP is looking for around 0.1 mA or less.

Mark
 
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