FAQ

A: Generally, high voltage diodes are manufactured using a “stacked silicon” approach where several layers of silicon-based wafers are sandwiched together, then diced to size, to fit within the target device package.

A: One can make a “high voltage” diode using a series connected string of low voltage diodes. One issue with this approach is the fact that the silicon substrate within each individual diode device may have characteristics which may not balance with the other devices found in the series string.  Differences in silicon materials, manufacturing tolerances, processing techniques, etc., can impact the performance of individual devices. A true high voltage diode solution will incorporate materials which are of the same manufacturing lot, have similar tolerance swings, track consistently across operating temperature, etc. It makes for a more reliable product solution.

A: A basic starting point for answering such a question is to consider the dielectric breakdown of air which is roughly 10,000 volts per inch (nominal). For instance, a 20KV diode (G20FS) would not achieve its full performance rating in an open-air application due to its small package size. One would need to implement other techniques such as over molding with suitable epoxy materials, increasing the dielectric strength using a gaseous environment, introducing dielectric fluids or oils, etc. Each technique has its advantages and must be carefully considered to ensure the final design achieves system objectives.

A: Diodes that have a rated reverse recovery time (specified as TRR on a device datasheet) are best suited for switching applications. The faster the switching frequency, the shorter the TRR needs to be. 

A: Ceramic capacitors are categorized Radial leaded capacitors, Axial leaded capacitors, Doorknob capacitors, and Capacitor stacks.

A: The structure of the most basic type of capacitor for storing electricity consists of a dielectric sandwiched between two electrodes.

A: Storage conditions for ceramic capacitors (MLCC and lead type) can be checked in the detailed specifications sheet.

A: You can download specification sheets from our product details page.

A: The phenomenon whereby the effective capacitance of a capacitor varies depending upon whether the voltage is DC or AC is called the "voltage characteristics."

A: Generally, the capacitance of a capacitor varies according to the working temperature.

A: The difference between "operating temperature range" and "temperature range" in the specifications of ceramic capacitors is shown below.