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15 Threads found on Dielectric Strength
Saying you are now transmitting the signal through optocoupler (IL300?) suggests that you are targeting for rather basic performance specifications, because the accuracy of analog isolation techniques is very limited. Also the dielectric strength won't be sufficient for a lot of power electronics applications, particularly regarding partial disc
Hello, We are seeking a relay with dielectric strength of >=3500V between open contacts, and between contact and coil. We need it for 25Amps current It is in a DC circuit. There will be no current flow in it at the time its switched on or off. It will be sited in a 400V rail. However, neither digikey or any manufacturers site sorts on diele
Hi, I have a piece of equipment (with PCB) where the maximum voltage is 300V between adjacent traces. What determines the dielectric strength test level for such a piece of equipment? Regards nodee
Firstly I can't follow your calculation. 1 ?H translates to 370 ?H with transformer 230:12 ratio, or about 230 ohms. But it's too much for a 100 kHz transformer anyway. Besides the problem of finding a suitable capacitor, you have this issues: - dielectric strength of winding isolation - high Q of resonant circuit, respective bad transient be
how to design a system that can do cable or wiring tests like as contiuty check , measuring ohmic resistance(megger) and dielectric strength check. please help me to start.
When the insulator has uniform structure and the field is uniform also, you only need to consider additional dissipation due to the higher loss per volume (dielectric loss). Note that with increasing temperature, dielectric strength reduces. When field distribution is far from uniform and/or insulation is non-uniform and (...)
I agree, that we can't expect sufficient dielectric strength from usual SMD power inductors. The other point is that 10 ?H sounds somewhat small if you want relevant attenuation amounts (e.g. > 40 dB) in the conducted emission band (150k - 30 MHz).
An intact soldermask layer will have sufficient dielectric strength and not melt under regular conditions according to it's 155 C temperature class. Nevertheless it's not designed to be used as insulation film. I won't do it.
The dielectric withstanding voltage test (also called high-potential, over potential, voltage breakdown, or dielectric-strength test) consists of the application of a voltage higher than rated voltage for a specific time between mutually insulated portions of a component part or between insulated portions and ground. This is used to prove (...)
Hello, What is the type of FR-4 you're using ? This might depends of the dielectric strength, I guess. Check here (first data) But I think this situation (flipped PCB) is detailled in the IEC norm Regards
The dissipative resistance and the magnetic field strength in the Loop Antenna depends by loop perimeter, conductor width/thickness, magnetic permeability, conductivity, dielectric loss and by frequency. The circumference of your Loop Antenna is less than λ/2, the radiation resistance is small, so the radiated field is low.
other materials like cu are being tried out now due to their low-k dielectric strength. This ensures faster switching speeds and lesser parasitic capacitances. please check this site for a list of other materials used
exactly.. when going to china for stuff its cheap PRICE that we are after. can you do burried via? how thin traces? dielectric strength? who knows, who cares.. give me LOW LOW PRICE!
The problems you might encounter fall in 3 categories: 1) dielectric loss. You can check the manufacturer's data sheet, which should be accurate. 2) Variations in manufacturing. Is this a big house, does a lot of board material? If so it should be ok. 3) Metal peal strength. Teflon is hard to stick to! Some houses can stick the copper
Hello everyone, does anyone know if it is possible to simulate nonlinear effects with HFSS10 although it is a frequency domain solver? I.e. nonliear dielectric materials where the dielectric constant is a function of the electric (or magnetic) field strength. Does anyone have any experience? Thanks!