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Results tagged with surge-protection
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user 260734
Questions about protecting electrical devices from voltage spikes.
1
vote
Accepted
Gauging surge protector outlet capacity question
The Joule rating for the power strip only tells you how much energy the protective element inside can absorb in an over-voltage situation and is mostly a marketing gimmick in my opinion. Most power s …
- 23.2k
3
votes
Accepted
Thermal dissipation on TO-252-3 Package
You're looking at it from a steady-state heat generation perspective, which is why you're getting frankly impossible numbers. As the LT4356 datasheet says (and it looks like you've done), you need to …
- 23.2k
1
vote
Discharge risk of an LED fade-in circuit
R1 and C1 to taste. I have no idea what the general consensus is on which opamp is suitable for breadboard/protoboard casual use, but it seems like the consensus is that the 741 belongs in a museum. …
- 23.2k
1
vote
Accepted
RJ11/RJ45 power surge protection
A good protection network will use multiple types of protective devices which compliment each other. To be able to withstand lightning strikes, a common first device is a gaseous discharge tube - a s …
- 23.2k
7
votes
What does this symbol mean in the internal circuitry of a surge protector device?
Gas discharge tube. Very high current handling capability, but generally less precise breakdown voltage than semiconductor devices. Frequently used in conjunction with semiconductor devices to provi …
- 23.2k
1
vote
Accepted
Right wiring for 3 phase 4 wire surge protection devices
From page 3 of this catalog, it looks like the choice of configuration is based on whether or not there's a RCD/GFCI device. The first configuration (earth return) is for placement upstream of a RCD. …
- 23.2k