Identifying a ON transistor

[Myron Samila]

Hi all,

I'm working on this car audio power amp. I'd like to at least get the power supply
section working (that way I can build my own amp using this PS, or replace all the blown
output transistors).

Anyhow, there are 3 MOSFETs per side FZ46N that make up the positive and negative supply
rails. Right beside it is a transistor made by ON marked U1620R on one side of the power
supply, and U1620 on the other.

They haven't failed, but I can't get any data on what these are. I'm assuming they are a
FET of some sort, I'd like to replace them as a precaution.

Does anyone know the website for ON transistors?? I tried google without much luck, and I
remember going to their website once.

Thanks


--
Myron Samila
Toronto, ON Canada
Samila Racing
http://204.101.251.229/myronx19

 

[Myron Samila]

ahh,

I've found it.

They are fast rectifiers. ON pn# U1620R is Motorolla pn# MUR1620CTR. sweet

I figured that is what these were, no evidence of biasing components, so..... do more
reseach and yee shall find...

--
Myron Samila
Toronto, ON Canada
Samila Racing
http://204.101.251.229/myronx19


"Myron Samila" <myronx19@no.spam.sympatico.ca> wrote in message
news:4YPmc.93969$ZJ5.1984379@news20.bellglobal.com...

Hi all,

I'm working on this car audio power amp. I'd like to at least get the power supply
section working (that way I can build my own amp using this PS, or replace all the blown
output transistors).

Anyhow, there are 3 MOSFETs per side FZ46N that make up the positive and negative supply
rails. Right beside it is a transistor made by ON marked U1620R on one side of the
power
supply, and U1620 on the other.

They haven't failed, but I can't get any data on what these are. I'm assuming they are
a
FET of some sort, I'd like to replace them as a precaution.

Does anyone know the website for ON transistors?? I tried google without much luck, and
I
remember going to their website once.

Thanks


--
Myron Samila
Toronto, ON Canada
Samila Racing
http://204.101.251.229/myronx19

 

[PJ]

"Myron Samila" <myronx19@no.spam.sympatico.ca> wrote in message
news:4YPmc.93969$ZJ5.1984379@news20.bellglobal.com...

Hi all,

I'm working on this car audio power amp. I'd like to at least get the
power supply
section working (that way I can build my own amp using this PS, or replace
all the blown
output transistors).

Anyhow, there are 3 MOSFETs per side FZ46N that make up the positive and
negative supply
rails. Right beside it is a transistor made by ON marked U1620R on one
side of the power
supply, and U1620 on the other.

They haven't failed, but I can't get any data on what these are. I'm
assuming they are a
FET of some sort, I'd like to replace them as a precaution.

Does anyone know the website for ON transistors?? I tried google without
much luck, and I
remember going to their website once.

Thanks


--
Myron Samila
Toronto, ON Canada
Samila Racing
http://204.101.251.229/myronx19

Google works. First hit on search for "on semiconductors".......Paul

http://www.onsemi.com/

 

[CWatters]

"Myron Samila" <myronx19@no.spam.sympatico.ca> wrote in message
news:4YPmc.93969$ZJ5.1984379@news20.bellglobal.com...

Right beside it is a transistor made by ON marked U1620R on one side of
the power
supply, and U1620 on the other.

RS Components in the UK...

http://rswww.com

list three parts....

447-1462 Diode, Ultra Fast, MUR1620CT, pack ON SEMICONDUCTOR MUR1620CT

348-6485 Diode, Rectifier, MUR1620CTR ON SEMICONDUCTOR MUR1620CTR

380-4805 Diode, Rectifier, Fast, MURF1620CT ON SEMICONDUCTOR MURF1620CT


The one I looked at is in a TO220 case. Note the CT and CTR suffix