How to select equivalent Varactor Diode?

[udhay_cit]

I need to find the equivalent replacement of mv2109 varactor diode.which parameter i should consider while selecting the replacement?

I am looking for component in digikey & mouser. So please help me to find the available replacement from the supplier.

I need this varactor diode for my FM stereo transmitters circuit (BH1417)...

Thanks & regards
Udhay

 

[sky_123]

You need to check what capacitance range you require, and see in the datasheet if it is possible with the control voltage range that you have
(and check the reverse voltage in the datasheet).
That is all you need to check for most of these simple FM circuits.
Often a varactor datasheet will state if it is intended for AM or for FM broadcast band circuits, so you instantly know if
the capacitance range is likely to be suitable (and you can then check the graph).
Your diode is a single one, but sometimes a dual diode is used, or your circuit may have two MV2109 devices.
Something like BB914 or MMBV609LT1G may be highly worth checking out, as suitable for such a role.