Re: ...another newbie question (NTC thermistor)

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Gerry  Reynolds" <gerryreynolds@xxxxxxxxxxxxx>

Hi Gary,

Thankyou,  that makes sense.  Just need to get a larger termistor :o))

Gerry R


> Original poster: "Lau, Gary" <Gary.Lau@xxxxxx>
> I had to think about this for a bit.  I think one can not parallel NTC
> thermistors.
> If two paralleled devices had precisely identical characteristics, it
> would work.  But assuming that the initial cold resistance was not
> matched, the unit with the lower resistance would pass more current than
> the other, so it would get hotter, making its resistance lower still,
> and it would remain the dominant path, not sharing the current.
> Regards, Gary Lau
> MA, USA
>
> > Original poster: "Gerry  Reynolds" <gerryreynolds@xxxxxxxxxxxxx>
> >
> > How well do thermistors work in parallel (to get more current
> capacity)???
> >
> > Gerry R.
> >
> > >Original poster: "Lau, Gary" <Gary.Lau@xxxxxx>
> > >My NTC thermistor was pulled from a large computer power supply I
> found
> > >at work.  The part was made by "Ketema", p/n SG301, but I can't
> suggest
> > >how to get more short of Googling.
> > >Regards, Gary Lau
> > >MA, USA