Maker Pro
Maker Pro

Looking for dual FET (I think...)

Hi all,
I am looking for a replacement for what I believe is a dual FET. Or
specs for this device so that I could fine a suitable replacement. The
part I have is in a small metal can "transistor" type package (I
forget the package designation, but it is the size of a metal can
2N2222) but with 6 leads. Base upon the application and the markings
on the circuit board (G1, S1, G2, S2) I believe this to be a dual FET.
The only marking on the can is "9610-TM" and "LS". I tried googling
this p/n but did not find anything helpful. The manufacturer of the
unit this is in no longer supports it or makes anything like it, and
has no data on it, as it is 12+ years old.

Any ideas as to what that part is or where to find one?

Thanks for any ideas.

-AL A.
 
N

N Cook

Jan 1, 1970
0
Hi all,
I am looking for a replacement for what I believe is a dual FET. Or
specs for this device so that I could fine a suitable replacement. The
part I have is in a small metal can "transistor" type package (I
forget the package designation, but it is the size of a metal can
2N2222) but with 6 leads. Base upon the application and the markings
on the circuit board (G1, S1, G2, S2) I believe this to be a dual FET.
The only marking on the can is "9610-TM" and "LS". I tried googling
this p/n but did not find anything helpful. The manufacturer of the
unit this is in no longer supports it or makes anything like it, and
has no data on it, as it is 12+ years old.

Any ideas as to what that part is or where to find one?

Thanks for any ideas.

-AL A.

Do you mean a dual gate , single FET or 2 FETs in a can - a lot of
difference.
What sort of frequencies is it handling?
 
M

Michael Black

Jan 1, 1970
0
N Cook" ([email protected]) said:
Do you mean a dual gate , single FET or 2 FETs in a can - a lot of
difference.
What sort of frequencies is it handling?
He said "dual fet". It also has six leads and no MOSFET I ever
saw had six leads. Also, the circuit board has "S1" and "S2" which
would indeed suggest to source pins.

Michael
 
R

R!

Jan 1, 1970
0
[email protected] wrote in @k79g2000hse.googlegroups.com:
Hi all,
I am looking for a replacement for what I believe is a dual FET. Or
specs for this device so that I could fine a suitable replacement. The
part I have is in a small metal can "transistor" type package (I
forget the package designation, but it is the size of a metal can
2N2222) but with 6 leads. Base upon the application and the markings
on the circuit board (G1, S1, G2, S2) I believe this to be a dual FET.
The only marking on the can is "9610-TM" and "LS". I tried googling
this p/n but did not find anything helpful. The manufacturer of the
unit this is in no longer supports it or makes anything like it, and
has no data on it, as it is 12+ years old.

Any ideas as to what that part is or where to find one?

Thanks for any ideas.

-AL A.

I had a similsr problem with a B&K analog FET meter, I used 2 matched
audio amp fets to92 plastic case and glued them together with super
glue.

Complete recalabration was required after this sub still use the ohm-
meter part of the old meter yet today it has Hi and Lo power ohms 1.25
to 1.35 volts across leads on hi and 0.33 volts on Lo. Still find this
usefull today.

R!!
 
A

Al A.

Jan 1, 1970
0
It is 2 FETs in one package, matched, I'm sure. This is part of a
preamplifier for a LN2 cooled infrared detector. The detector is
essentially a reverse biased diode, so the currents involved are
extremely small, in the range of 10^-8 to 10^-9 amps.

I have not yet determined with 100% certainty that the FET is dead, I
will likely know that next week. If it is, I have a few options
involving what amount to semi-educated guesses, but would rather know
exactly what to get, if possible.

Thanks to all for taking the time to reply!

-AL A.
 
A

Al A.

Jan 1, 1970
0
Oops, too quick with the send button. To answer the question of what
frequency is involved here, they are low, 400-500 Hz, max.

Thanks again,
AL A.
 
Top