AI4QJ wrote:
"K7ITM" wrote in message
...

On Feb 2, 11:34 pm, (Dave Platt) wrote:

Looking for a website that gives comparative performance of diodes (max
frequency for UHF use)

I don't know of a broad-spectrum site (i.e. one which is multivendor)
other than general datasheet-search sites such as datasheetarchive.com

One good place to start looking would be atwww.avagotech.com- I
believe that Avago Technologies is the current inheritor of the line
of RF Schottky diodes originally made by HP and then by Agilent. Some
of these parts are useful up to quite a few GHz.

--
Dave Platt AE6EO
Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior
I do _not_ wish to receive unsolicited commercial email, and I will
boycott any company which has the gall to send me such ads!

Yes, that is correct about Avago. I believe I've come across diodes
there rated for use up to 40GHz, maybe 65GHz.

Also, look at other web sites (of companies with "new" names also!)
NXP used to be Philips. They definitely have some good RF detector
diodes. A Google search on "RF detector diode" just now turned up
several interesting hits, including some for sale on ebay. I saw
Vishay listed as an RF detector diode supplier, too, and I wasn't
aware they were really into that area--looks like they acquired
Telefunken, for another name change! But I suppose Suzy is looking
for non-surface-mount parts (from postings in another thread), and
that likely will be a problem for any new stuff. Pretty much
everything now has gone to tiny surface mount packages. -- OK, I
have to take that back. The Vishay web site has a kind of neat
feature and lets you look by package type--click on the picture of the
package. And it's real pictures, not line drawings. They DO have
glass axial lead RF diodes.


But no website URL, as requested.


Google is your friend.

NXP (http://www.nxp.com/) is sold by Digikey (see, e.g., page 1152 of
the catalog). You might have better luck searching by the name Philips
to find part numbers.

http://www.avagotech.com/ for diodes from Avago (they have things like
the 1N5711) more to the point, lots of Ap notes.. see, for instance,
number 986 (Avago was part of HP, but actually was originally
Avantek... on the other hand, HP always made diodes, so maybe Avago is
some of Avantek (MMIC) and some of HP (diodes))

http://www.vishay.com/ for Vishay. Look for small signal diodes


One should also look at Microwaves 101
http://www.microwaves101.com/encyclopedia/detectors.cfm

and they have a "where are they now" page on their website, to help
track down who sells brand X now.
http://www.microwaves101.com/encyclopedia/wherenow.cfm