At 06:33 PM 9/28/2009, Rocket J Squirrel wrote: >16 volts should work fine in an automobile. Tantalum not needed, general >purpose aluminum electrolytic is quite acceptable. However the ones you point to are only rated -40C to 85C...I think you'd want at least 105C, maybe 125C if it's mounted inside the engine compartment, and the low temp rating is marginal too. Aluminum caps survive poorly when run hotter than their rating (50% lifetime reduction per 10F is what I recently read), and I don't imagine they like being frozen, either. Since the tantalums don't contain wet electrolyte they don't mind either heat or cold as much as aluminums. Here's one that I think would be preferable: <http://mouser.com/ProductDetail/Kemet/T355G226M020AT/?qs=sGAEpiMZZMvYDzv5pG7654NsQWJgSSEO7cXO0Gu2g28%3d> d |
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