Re: ubitx troubleshooting help - low power after irf510 replacement
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But.....IRF510 devices have not been made for International Rectifier for over 20 years.
They licensed the die to a South Korean firm, who had them manufactured in China.
Not sure where the Bulgarian (Vishay) devices are coming from.? 8-)
Arv
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On Sat, Aug 18, 2018 at 8:59 AM Jerry Gaffke via Groups.Io <jgaffke= [email protected]> wrote: I suspect those so-called IRF510's from Tayda are good enough if you plan to use them for their intended purpose.
Specifically, for use as low speed power switches.
To use an IRF510 at 10 or 20 mhz means it had better meet all the specs of the original part.
You want parts from a reputable top line vendor (Arrow, Mouser, Digikey, etc).
from a reputable manufacturer (these days that would be from Vishay).
?
Tayda is in the business of cutting costs on this stuff.
That means using clones.
And the clones sometime don't meet exactly the same spec's as the original parts.
The clones generally work, but not always.
Quality control can be less than ideal.
For example, there are reports of Nano clones that mostly work
but suck 4x the power that they should.
Or have a bad ADC input.?
I have bought stuff from Tayda, and have been happy with what I got.
But Tayda, at those prices, is not shipping the same stuff you would get from Mouser.
I would not consider buying RF semiconductors from other than first tier vendors.
Way more trouble than it's worth getting an RF amp to work with bad parts.
Can be trouble enough when using known good parts.?
Jerry
On Sat, Aug 18, 2018 at 07:17 AM, ohwenzelph wrote:
It would be nice to know what is and is not good from Tayda as they have low prices and low cost shipping.guress sometimes you git what you pay for...
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