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Below are all of the forum threads, including all the responses to the original posts. jom Post subject: PIN Diode question Posted: Fri Aug 15, 2008 9:50 pm Captain Joined: Fri Jan 26, 2007 2:40 am Posts: 14 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. My main concern is the isolation at the lower frequencies. Thanks jom Top IR Post subject: Posted: Sat Aug 16, 2008 3:37 am Site Admin Joined: Mon Jun 27, 2005 2:02 pm Posts: 373 Location: Germany Hello jom, You can work with PIN diodes up to low frequencies (10KHz and lower), at the 1-10MHz region, Rs is not constant but increases. In the KHz region, the diode will act as normal PN diode. So I would say there is no problem to use it for your application. Posted 11/12/2012 | ||||||
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