Re: snubber resistor power rating?

From: HARRY DELLAMANO (harry_td_at_verizon.net)
Date: 11/29/04


Date: Mon, 29 Nov 2004 03:22:57 GMT


"John Popelish" <jpopelish@rica.net> wrote in message
news:41AA96A8.B03ABEF8@rica.net...
> Harry Dellamano wrote:
>>
>> >> Ken Smith wrote:
>> >>
>> >> IRC (the company, I do Recall Correctly) make some great smt
>> >> resistors.
>> >> And have peak pulse power curves.
>> >
>> > Caddock does too:
>> > http://www.caddock.com/Online_catalog/smt/smt.html
>> >
>> > --
>> > John Popelish
>>
>> Caddock is a perfect example of a poor surge (Pulse) power resistor.
>> They
>> are thin film and X1.5 rated peak power. A good surge rated resistor is
>> X5000 or maybe 5 Joules. Call Richard Caddock and see if they speak in
>> Joules.
>
> But that 1.5 factor is allowed for 5 seconds. I was assuming that
> from an I^2*t fusing effect that the dissipation capability would go
> up quite a bit if the time was in milliseconds.
>
>
> --
> John Popelish

 A-huh, assuming.
 Harry



Relevant Pages

  • Re: snubber resistor power rating?
    ... > Harry Dellamano wrote: ... >> Caddock is a perfect example of a poor surge power resistor. ... >> are thin film and X1.5 rated peak power. ...
    (sci.electronics.basics)
  • Re: snubber resistor power rating?
    ... >> John Popelish ... > Caddock is a perfect example of a poor surge power resistor. ... > are thin film and X1.5 rated peak power. ...
    (sci.electronics.design)
  • Re: snubber resistor power rating?
    ... >> John Popelish ... > Caddock is a perfect example of a poor surge power resistor. ... > are thin film and X1.5 rated peak power. ...
    (sci.electronics.basics)