I am ordering a few parts I need to build DeadEndFX's Mutron BiPhase pedal (or giant box on the floor), and needed to order a very specific Kingbright LED. The only store stocking them was Newark, so I decided to try out their store for the other capacitors, switches, and ICs I need to grab. While ordering capacitors, I noticed that there's more types of film than I had previously known.
Metallized PET Stacked
Metallized PET
Film / Foil PET
Film / Foil PP
Metallized PP
Metallized PPS
I looked through my last Mouser order, and saw a mix/match of Polypropylene (PP), Polyethylene Terephthalate (PET), and Polyester. I was curious if I should be ordering one type over another, or whether I should simply order what's cheapest.
I always go with cheapest. Audio is basically low-frequency, low-voltage, temperature-stable work, i.e., a set of really easy to meet specs. More expensive caps tend to be designed for more demanding/fancy stuff.
That's what I thought. Thanks!
Since you are ordering from Newark, I usually look for a couple of specific brand/series, like WIMA MKS2 or EPCOS B32529. Then scan for the "red star" labeled ones they seem to always be blowing out for pennies. Then I stock up ;D Shipping on Newark is expensive though. Sometimes, even with the red star buys, it is cheaper to buy stuff from Mouser.