what is the dV/dt rating?

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I knew my college calculus would come in handy SOMEDAY. This rating is how a Cap stores & releases a charge (the definition of capacitance is the ability to store a charge). So, dV/dt is "delta Voltage over delta time". Delta means "the change in". The forward slash is read a lot of different ways, but they all mean the same thing. It could be divided by or 'over' or per.  The change in Voltage divided by the change in time.

In capacitance that's going to look something like 20V/mS (20Volts per millisecond). I just made up the number. I have no idea how fast these guy do their thing. I'm mostly concerned with how they sound in my guitar. I usually remove the tone controls anyway & just have a volume control & if I'm using a humbucker, I wire in a coil tap/splitter. I think I bought these to replace the 10 cent caps that Gibson put in my $4000 Les Paul. I swapped out both pickups for a pair of over wound humbuckers, put in 2 500kΩ push/push pots as volume pots to replace those ridiculous push/pull pots & one these big ol' orange gumballs for tone on each pickup. I left the original 500kΩ tone pots in there, but if I had it to do over (& I still may), I would swap out the 500kΩ tone pots for 250kΩ pots. They seem to work for me.

Oh darn. I should have started this as "Four Score and seven years ago...." or "I was born in a log cabin..." Sorry for ramblin. I hope in the 20,000 words here, there's something that answers your question & maybe provides a little better understanding for what you want to use these for & maybe some encouragement. It's just WAY too expensive to have somebody else work on your guitar. It can be a lot of fun doing your own work & quite satisfying to hear the results of your work.

ASIN	B077BWW17K
Best Sellers Rank	#29,141 in Musical Instruments ( See Top 100 in Musical Instruments ) #77 in Amplifier Accessories
Brand	Orange Drop
Brand Name	Orange Drop
Capacitance	47 Microfarad
Capacitance Tolerance	5
Customer Reviews	5.0 out of 5 stars 1 Review
Item Shape	Round
Manufacturer	Cornell Dubilier
Material	Polypropylene
Material Type	Polypropylene
Maximum Voltage	400 Volts
Mounting Type	Through-Hole Mount
Operating Voltage	400 Volts
Part Number	716P22354KA3
Shape	Round
UPC	691852992331
Upper Temperature Rating	85 Degrees Celsius

.047 uf, 400 Volt Orange Drop Film Capacitors - Pair (2X)

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