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Band switch diode for RF

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gpugelni

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I have filter in which I must use switch diode for desired band pass. So, in original schematic is used BA423 (AM band switch diode), in the other hand I can buy BA243 (Diode switch). Working frequency of switch circuit is 10,7MHz. I was noticed that BA243 have 50....1000MHz frequency range. (hm)
Question is; Can I use BA423 instead of BA243 ?, and "AM band diode", does that mean that this diode is for amplitude signals, or for low frequencies of AM band..

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Hi gpugelni,
I've had a look at the datasheet. BA243 is similar to BA423, in facts even somewhat better: forward resistance and reverse capacity are indeed lower at the same frequency/current.
"AM" means "typical AM bandwidth", from some 100 kHz to a few MHz. It does not mean the diode can be used only for amplitude modulation signals.
 
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