Identifying PNP Help

[rRob]

I am working on a PWM fan control circuit. I am having a trouble
figuring out what PNP transistor I need. All I have to go on besides
the symbol is:
Q1 TIP126PNP DARLINGTON OR SIMLIAR

any help or suggestions would be great.

Thanks

 

[Walter Harley]

"rRob" <schmidtyboy74@hotmail.com> wrote in message
news:a63d42eb.0405061229.f9f5e3f@posting.google.com...

I am working on a PWM fan control circuit. I am having a trouble
figuring out what PNP transistor I need. All I have to go on besides
the symbol is:
Q1 TIP126PNP DARLINGTON OR SIMLIAR

TIP126 is the part number. Googling on "TIP126" reveals several
manufacturers' datasheets; Fairchild semiconductor shows the device is in
full production for less than $1.

 

[Jim Backus]

On Thu, 6 May 2004 20:29:27 UTC, schmidtyboy74@hotmail.com (rRob)
wrote:

I am working on a PWM fan control circuit. I am having a trouble
figuring out what PNP transistor I need. All I have to go on besides
the symbol is:
Q1 TIP126PNP DARLINGTON OR SIMLIAR

any help or suggestions would be great.

Thanks

Originally made by Texas Instruments - power darlington Ic max ~ 3
Amps. the type number gave the max Vce. different parts were probably
40 V, 60 V and 80 V.

--

 

[Michael A. Covington]

"rRob" <schmidtyboy74@hotmail.com> wrote in message
news:a63d42eb.0405061229.f9f5e3f@posting.google.com...

I am working on a PWM fan control circuit. I am having a trouble
figuring out what PNP transistor I need. All I have to go on besides
the symbol is:
Q1 TIP126PNP DARLINGTON OR SIMLIAR

You might try a TIP126, which is a Darlington pair (2 transistors in one
package, the first one acting as a preamplifier for the second).

 

[Watson A.Name \"Watt Sun]

rRob wrote:

I am working on a PWM fan control circuit. I am having a trouble
figuring out what PNP transistor I need. All I have to go on besides
the symbol is:
Q1 TIP126PNP DARLINGTON OR SIMLIAR

any help or suggestions would be great.

Thanks

http://www.fairchildsemi.com/ds/TI/TIP125.pdf