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Synergistic Research MPC plugged in 24/7?

Just curious if anyone knows if the Mini Power Coupler (MPC) is supposed to be left plugged in and powered up 24/7? I read on another thread that one user had their MPC just die on them. It made me wonder if the MPC has some components in them with limited lifespan?
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islandmandan
1,260 posts
 
I've had seven of them plugged in 24/7 for 8-10 years with no issues. Yours is the first one I've heard of going bad, I'm sure there must be others. I don't worry about it.

Dan
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tboooe OP
1,009 posts
 
Thanks Dan! Actually mine has not died but I just got it modded by Michael Spallone and lifespan on the Cap is listed as 7000 hours which is about 292 days if plugged in 24/7. I am perhaps reading the spec sheet wrong and misinterpreting what the lifespan number means.
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tboooe OP
1,009 posts
 
Did some more digging on what endurance means. I guess this is the rated lifespan when the capacitor is operating at max temp and ripple current. Supposedly a rule of thumb is for every 10 deg C drop in operating current, lifespan increases by a factor of 2. So if my cap is rated at 7000 hours at 105C, a drop to 95C would increase lifespan to 14000 hours, still not all that great. I think I will unplug my modded MPCs when not in use.
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