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BSEE - KB3UON
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PIN Diode question - RF Cafe Forums
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lots of great posts in the archive that ware worth looking at.
Below are the old forum threads, including responses to the original posts.
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Post subject: PIN Diode question Posted: Fri Aug 15, 2008 9:50
Joined: Fri Jan 26, 2007 2:40 am
What is the typical lowest usable frequency for a PIN diode?
I'm not all that familiar with them but I've done some calculations
and it seems to me you could use them to isolate frequencies below 1
MHz. I need to design a bank of HPFs for an HF radio and I don't want
to just use relays due to current requirements and size. I know the
PIN needs some but overall I will probably use lower DC.
main concern is the isolation at the lower frequencies.
Post subject: Posted: Sat
Aug 16, 2008 3:37 am
Joined: Mon Jun 27,
2005 2:02 pm
You can work with PIN diodes up to low frequencies (10KHz and lower),
at the 1-10MHz region, Rs is not constant but increases.
the KHz region, the diode will act as normal PN diode.
would say there is no problem to use it for your application.