Hello,
I have a Linksys SPA2102 I'm re-capping:


The gist of my question is can I replace the two 100V capacitors with 63V capacitors? I checked their voltages, it's 60V when the phone is on the hook and around 17V when it's off.
Looking at the datasheet for the chip that is controlling the voltage, the SI3215, it states that it can 'dynamically' assign voltages. The question is, will the voltage go higher than 60V?
I looked at the design suggestion charts in the datasheet as well, and they're recommending 60V diodes. Indeed the voltage on both diodes were 60V.
The two capacitors I want to us specifically to replace them are Panasonic FC series, 63V 68uF.
Oh yea, here are a list of the caps, if anyone is interested. This is for my hardware version with the Sipura chip. I've seen some of them with an ESS chip, the layout is different for those:
1) 100v 27uF 8mm x 11.5mm Capxon "GF"
2) 100v 27uF 8mm x 11.5mm Capxon "GF"
3) 6.3v 330uF 6.3mm x 11mm Capxon "GL"
4) 10v 220uF 6.3mm x 11mm Capxon "GL"
5) 16V 100uF 5mm x 11mm Capxon "GL"
6) 16V 100uF 5mm x 11mm Capxon "GL"
7) 16V 22uF 5mm x 11mm Capxon "GL"
8) 16V 22uF 5mm x 11mm Capxon "GL"
I have a Linksys SPA2102 I'm re-capping:
The gist of my question is can I replace the two 100V capacitors with 63V capacitors? I checked their voltages, it's 60V when the phone is on the hook and around 17V when it's off.
Looking at the datasheet for the chip that is controlling the voltage, the SI3215, it states that it can 'dynamically' assign voltages. The question is, will the voltage go higher than 60V?
I looked at the design suggestion charts in the datasheet as well, and they're recommending 60V diodes. Indeed the voltage on both diodes were 60V.
The two capacitors I want to us specifically to replace them are Panasonic FC series, 63V 68uF.
Oh yea, here are a list of the caps, if anyone is interested. This is for my hardware version with the Sipura chip. I've seen some of them with an ESS chip, the layout is different for those:
1) 100v 27uF 8mm x 11.5mm Capxon "GF"
2) 100v 27uF 8mm x 11.5mm Capxon "GF"
3) 6.3v 330uF 6.3mm x 11mm Capxon "GL"
4) 10v 220uF 6.3mm x 11mm Capxon "GL"
5) 16V 100uF 5mm x 11mm Capxon "GL"
6) 16V 100uF 5mm x 11mm Capxon "GL"
7) 16V 22uF 5mm x 11mm Capxon "GL"
8) 16V 22uF 5mm x 11mm Capxon "GL"
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