Another mystery part

I think it is a PTC resettable printed circuit board fuse and have
zillions of them.

Beige colored, rectangular 0.40 square by 0.20 thick.
Two single ended radial leads on 0.2 inch centers
Shiny dipped epoxy.

Part number is

*600
150
QU1X

Other side says TAIWAN.

Low current resistance is around 8 Ohms.

What is it, who made it, and what is it worth?

I suspect these sell for forty cents each.

--
Many thanks,

Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
rss: http://www.tinaja.com/whtnu.xml email:

Please visit my GURU's LAIR web site at http://www.tinaja.com

 

What happens when you heat it up? Negative or positive temp coef? Could it
be used to limit inrush current to a off line switcher?



tm

 

Gets warm and does its PTC thing above 300 ma.

Still would like to know who makes it and its actual ratings.

--
Many thanks,

Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
rss: http://www.tinaja.com/whtnu.xml email:

Please visit my GURU's LAIR web site at http://www.tinaja.com

 

Gets warm and does its PTC thing above 300 ma.

Still would like to know who makes it and its actual ratings.

--
Many thanks,

Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
rss: http://www.tinaja.com/whtnu.xml email:

Please visit my GURU's LAIR web site at http://www.tinaja.com

 

Did you look on the TE website? I suspect this is a 600V, 150mA
(carrying current) Raychem Polyswitch, whose resistance doubles at
300mA. QU1X should be the lot code. The URLs are all gigantic or I
would include them.

We used to use polyswitches eons ago; no idea what they cost nowadays.

 

Raychem/TE parts have RUE on them. Perhaps it's an early Rachem part.

Or maybe it's a Littlefuse part
<http://www.littelfuse.com/data/en/Data_Sheets/Littelfuse_PTC_600R.pdf>
<note the part marking 'lf600'>
They are UL so you can lookup the UL file number and see if there is a
document for the part.

Cheers

 

There's no UL listing with those markings, in any product category.

Odd. This is pretty much automatic with PTC marketing. There are over
40 Taiwanese mfrs listing their product markings under XGPU2
thermistor-type devices (no actual UL logo required here).

Do the leads fall off in protection mode? Wouldn't stress it above
30V, to be fair.

RL