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Results tagged with maximum-ratings
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user 3288
Questions related to the maximum ratings of a component such as maximum voltage, heat and other specs which if exceeded will likely destroy the device
11
votes
Accepted
What is an AC voltage rating for a capacitor?
Summary
Based on the guidelines in Selection of Capacitors for Pulse Applications
the required voltage rating is liable to be surprising and annoying.
Capacitor voltage rating = DC volts + AC comp …
- 152k
2
votes
Input voltage range of opamps
(1) What they all said.
(2) Note that a few opamps can swing to slightly beyond supply rails - this is achieved by generating voltages within the opamp that give it a true operating voltage wider than …
- 152k
1
vote
Are there any effective estimates for up-rating resistors power capability by adding airflow?
What Ignacio said :-).
There is a large amount of material available on forced air cooling of heatsinks / plates/ surfaces and some of it is generally applicable.
But the 'easy' way to get a feel fo …
- 152k
1
vote
Accepted
DC/DC overvoltage problem
Opamp death is likely if Vmax is 5.5V and you may get 8V.
If you "have on hand" any sort of voltage reference and an opamp, or a clamp regulator (eg TL431 etc) or ... you could implement a dynamic ou …
- 152k
4
votes
Will there be any negative effects if I install the Circuit Breaker to the system voltage lo...
Rated voltage is properly read as "Maximum" operating voltage".
It is constrained by the ability to break an arc while otherwise operating at rated (= maximum permissible) current. Fault current may …
- 152k
9
votes
How to determine the nominal current of an LED?
VERY approximately:
LED power rating = bulb_ratinf/number_of_LEDs.
So if eg 5W bub with 15 LEDs.
LED power ~= 5W/15 = 1/3 Watt per LED.
LED forward voltage is typically ~= 3V.
So LED current ~= LED_P …
- 152k
0
votes
Magnetic reed switch current ratings
The reeds are nominally within their limits once the lamp is running but, depending on which sort of Xenon lamp it is, inrush current could give them a nasty fright. For long lifetime I'd add some sor …
- 152k