RF Resistor

[zenthoef]

Does anyone know a good source for RF resistors? I am looking for a
12.5 ohm, 30-40W RF resistor. The demensions are critical, but I will
worry about that when I find a supplier. I tried Florida RF, but they
didnt have a 12.5 ohm resistor in the size I needed. If you know of any
good sources for RF resistors please e-mail me at zenthoef@hotmail.com
to let me know what they are.

Thanks in advance.

-mz

 

[Tim Shoppa]

50 ohms will be a very common size, and 4 of them in parallel is a
perfect match to what you need.

"RF" is not a very precise term here. You want it to look mostly
resistive to 10MHz? 10GHz? 100GHz? At the low end any off-the-shelf
non-wirewound resistor will be fine.

Tim.

 

[mike]

zenthoef wrote:

Does anyone know a good source for RF resistors? I am looking for a
12.5 ohm, 30-40W RF resistor. The demensions are critical, but I will
worry about that when I find a supplier. I tried Florida RF, but they
didnt have a 12.5 ohm resistor in the size I needed. If you know of any
good sources for RF resistors please e-mail me at zenthoef@hotmail.com
to let me know what they are.

Thanks in advance.

-mz

You're not very specific about your requirements.
If I only needed one and didn't need very high frequencies,
I'd take a standard wirewound and counterwind another coil
over the top to cancel "most" of the inductance.
mike

--
Return address is VALID but some sites block emails
with links. Delete this sig when replying.
..
Wanted, PCMCIA SCSI Card for HP m820 CDRW.
FS 500MHz Tek DSOscilloscope TDS540 Make Offer
Wanted 12" LCD for Compaq Armada 7770MT.
Bunch of stuff For Sale and Wanted at the link below.
MAKE THE OBVIOUS CHANGES TO THE LINK
ht<removethis>tp://www.geocities.com/SiliconValley/Monitor/4710/