505 Blower Motor Transistor

Ralph

Active member
Fellow Frogger
Joined
Jul 28, 2001
Messages
929
Location
Wodonga
Has anyone got a datatsheet or cross reference information on the transistor that controls the fan speed on S1 505's? It's a Motorola TE1829 and is situated on the inner guard adjacent to the blower fan. It is bolted to a fairly large aluminium heat sink. It's a bitch to get to as you have to break away the noise deadening and use a stumpy screwdriver to get it out. I could find very little about it on the internet, nothing on the Motorola site and they have yet to reply to my email.

My fan only runs on high speed and doesn't do anything on the other three settings. I've replaced the circuit card that is operated by the fan speed slider knob and this did nothing. The little info I have found indicates it is a Darlington power transistor. Whether it is PNP or NPN I don't know. Hopefully someone has an old transistor cross reference book from the early eighties that has an equivalent in it. Has any one replaced this transistor with another commonly available type?

Cheers,

Matt.
 

Attachments

  • TE1829.JPG
    TE1829.JPG
    98.6 KB · Views: 1,150
I'm sure someone else will know the replacement but are you sure it is TE 1829. The transisitor in your picture appears to be a TO3 package which I thought for Motorola were prefixed MJ for a metal can and MJE for a plastic (non TO3).
 
Ralph said:
Has anyone got a datatsheet or cross reference information on the transistor that controls the fan speed on S1 505's? It's a Motorola TE1829 and is situated on the inner guard adjacent to the blower fan. It is bolted to a fairly large aluminium heat sink. It's a bitch to get to as you have to break away the noise deadening and use a stumpy screwdriver to get it out. I could find very little about it on the internet, nothing on the Motorola site and they have yet to reply to my email.

My fan only runs on high speed and doesn't do anything on the other three settings. I've replaced the circuit card that is operated by the fan speed slider knob and this did nothing. The little info I have found indicates it is a Darlington power transistor. Whether it is PNP or NPN I don't know. Hopefully someone has an old transistor cross reference book from the early eighties that has an equivalent in it. Has any one replaced this transistor with another commonly available type?

Cheers,

Matt.

I tried an ordinary power transistor once with limited success, if it is a Darlington Pair this would explain why!
There are plenty of wrecks around nowadays and I'm pretty sure I have a transistor on the shelf in the garage. Let me know if you want it.
Graham
 
Over the past 4 or so years I have replaced about 1/2 dozen of these transistors (in 505 S1, 505 S2, 405 Mi16 S1 and 205 GTi), with a Motorola MJ15004. They are readily avaliable, and are a PNP power transistor in a T0-3 case, designed for high power audio applications. It is not a darlington pair. I have had no issues or complaints about any of them yet. I think I usually pay about $7 for them.
 
Demannu said:
Over the past 4 or so years I have replaced about 1/2 dozen of these transistors (in 505 S1, 505 S2, 405 Mi16 S1 and 205 GTi), with a Motorola MJ15004. They are readily avaliable, and are a PNP power transistor in a T0-3 case, designed for high power audio applications. It is not a darlington pair. I have had no issues or complaints about any of them yet. I think I usually pay about $7 for them.

Where do you buy them from? My fan speed controller has kicked the bucket so to speak :(
 
There's a place at the end of my street called "Aztronics". I buy them there. I think Jaycar stock them as well? Never tried DSE, I've given up on them for my components. Perhaps Farnell would have them too.
 
Thanks Graham, I have a few spares. I'm more interested in finding an obtainable, off the shelf replacement. This would help others who don't have access to oem parts.

Sam, check the resistors' value on the circuit card that is connected directly to the fan knob first, it is easier to get to. It's a little pcb that has a few resistors on it. I checked mine and the values came close to the colour codes. I'll try and measure them tomorrow and post results here. I think this sets the base bias of the TE1829 thus controlling the speed of the fan. What do you reckon Scott?

Matt.
 
Ralph said:
Sam, check the resistors' value on the circuit card that is connected directly to the fan knob first, it is easier to get to. It's a little pcb that has a few resistors on it. I checked mine and the values came close to the colour codes. I'll try and measure them tomorrow and post results here. I think this sets the base bias of the TE1829 thus controlling the speed of the fan. What do you reckon Scott?

Matt.

Thanks, I'll check them out (if they exist in a 205 :confused: ). I'm pretty sure my fan speed controller is stuffed seeing as the transistor is looking rather corroded and I've tested the outputs of the wires in the plug that connects to it, and they seem to work. The speed controller is pretty easy to get to in a 205 :)
 
blower motor transistor

Back in 2000 I replaced the transistor in my 505 STi exec blower and it has worked perfectly ever since. I used a darlington pair SM9244/2N6287 from World Wide Electrics, George St. Kensington, WA. It was in a TO3 case, and it replaced something marked FW26025 Italy 48349 SGS. Hope that helps.

Pugsaya
 
Top