Kemhet PEGI Electrolytic Series Caps

[eldarvanyar]

Hi guys,

I have been looking at the Kemet Pegi electrolytic series of capacitors for a RH84 SE Valve amp project.

Has anyone used these before they seem to have good specs and long life?

The C1 47uF 450v is in the PSU and I could go with that or a Motor Run Capacitor.
PEG124YL2470QL1 | KEMET 47μF Electrolytic Capacitor 450V dc, Through Hole - PEG124YL2470QL1 | RS Components

Capacitance: 47 uF
CapacitanceTolerance: -10/+30%
Voltage DC: 450 VDC
TemperatureRange: -40/+105°C
RatedTemperature: 105°C
Life: 22000 Hrs
Resistance:1200 mOhms (100Hz 20C), 530 mOhms (100kHz 20C)
Ripple Current: 0.377 Amps (100Hz 125C), 2.4 Amps (5kHz 60C), 0.89 Amps (5kHz 125C)
Leakage Current: 63 uA (5min 20°C) 0.377 Amps (100Hz 125C),
Inductance: 17 nH (ESL)

Any thoughts and opinions welcome

Motor Run Polyprop 46UF 450v
https://uk.rs-online.com/web/p/products/9119421/

Thanks

 

[terranigma]

Kemet's Rifa series capacitors are the highest quality capacitors available along with Epcos Sikorel in my opinion. I highly suspect that you can find a better capacitor.

 

[eldarvanyar]

Thanks for the reply, I am a bit confused did you mean I can or cannot find a better capacitor?

Thanks

Lee

 

[terranigma]

Thanks for the reply, I am a bit confused did you mean I can or cannot find a better capacitor?

Thanks

Lee

I think that you cannot find a better axial capacitor within same specs. Only part that I'm aware of that specifies 20k hours at 105°C is Nichicon PX but they are not axial.

 

[eldarvanyar]

Thank you I think I will order them 🙂

 

[terranigma]

I thought you are going to use Kemet PEGL in PSU filter section. Because it is polarized electrolyte capacitor. If you're trying to find a capacitor for signal coupling/dc blocking you better to look for film capacitors.

 

[eldarvanyar]

Hi , yes I can use it in the psu section. I was thinking about using them for the other caps.
Would you not use them on the audio section as the design specified electrolytic apart from one cap.

Thanks