Question about Astar LTV-2701 27 in. HD-Ready LCD Television
What is the difference between a 450wv cap and a 450v cap?
List of caps
Where to get them 450WV replacement
Posted on Jan 16, 2009
Mostly a matter of preference; the working voltage of a cap is the maximum it should be subjected to continuously; some capacitors are rated with an additional 'Surge' rating, the voltage they can withstand now and then without self-destructing.
Those intended for use as decoupling caps or to smooth DC voltages, will have clearly marked polarities which are important and installing them backward can produce a surprisingly loud 'pop' and scatter aluminum foil and paper scraps for a few feet.
If a cap has only a 'V' (such as 450V) after the rating, you can safely assume it is DC or direct current voltage. Most caps are marked with either V/DC or V/AC and while one marked AC can be used with static voltages (DC), one marked with VDC is not normally suitable for use with alternating current uses. Caps marked with AC ratings are used for motor starting and other AC-only applications and actually may be subjected to peak voltages well beyond the stated rating. Some AC caps will bear a symbol indicating which lead is connected to the outer foil since this can be important in some applications where the outer foil can serve as a shield.
Posted on Dec 25, 2008
Not much. V means "Voltage" and "WV" means "Working Voltage".
V means peak voltage that the capacitor can handle. WV means the normal voltage it can handle, but it can handle brief spikes higher.
As long as they're the same type (tantalum, electrolytic, etc) and oriented the right way, and at the same or higher working voltage, you should be fine.
Posted on Dec 25, 2008
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Posted on Jan 02, 2017
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