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These diodes convert the electrical energy in to light energy. First production started in 1968. It undergoes electroluminescence process in which holes and electrons are recombined to produce energy in the form of light in forward bias condition. Earlier they used in inductor lamps but now in recent applications they are using in environmental and task handling. Mostly used in applications like aviation lighting, traffic signals, camera flashes. It is also known as current-regulating diode or constant current diode or current-limiting diode or diode-connected transistor. The function of the diode is regulating the voltage at a particular current. It functions as a two terminal current limiter. In this JFET acts as current limiter to achieve high output impedance. The constant current diode symbol is shown below.
HVC HV diode peak working revere voltage(VRWM) from 1kv to 30kv, high voltage silicon stack voltage up to 500kv,Average Forward Current( IF(AV)) from 10MA to 20A, Reverse Recovery Time(trr) from 35ns to 2000ns,working frequency 50HZ to 200kHZ. HVC high voltage diode with the following advantage feature: 1) Low leakage current, high surge, and high current shock resistance 2) High reverse voltage, low forward current and avalanche breakdown protection. 3) Fast response, high efficiency and ultra-fast recover tiime. 4) High heat resistance, PN junction temperature up to 175C See more info at 20kv high voltage diodes.
It turned out that the use of high-voltage customers of ceramic capacitors as components of the generator high voltage on the capacitor to use 2200PF nominal, nominal capacity 35 kv tension, 25 mm in diameter.Price was 3.8 Yuan.Material for the Y5V.Its use within one month after the failure of a capacitor discovery will be the case. As you can see in the table above, the insulation resistance is the largest high-voltage N4700 material, the worst performance capacitors, must belong to Y5U or Y5V above.Difference of 20 times insulation resistance.Insulation resistance superior to the current capacity of the largest, therefore, from the current perspective, is clearly good N4700 material.
I ceramic capacitors (Class I ceramic capacitor), said high-frequency ceramic capacitors (High-freqency ceramic capacitor) in the past, is the dielectric loss, high insulation resistance, dielectric permittivity varies linearly with temperature ceramic capacitor manufacturing . In particular, it applies to the resonant circuit, and other requirements of the loss is small and electric capacity and stability of the circuit, or for temperature compensation. Because of the abundance of raw materials, the structure is simple, inexpensive, and a wide range of electric capacity (generally a few PF to hundreds µF), the loss is smaller, the temperature coefficient of capacitance according to the requirements in a wide range of adjustment. Find additional info on https://www.hv-caps.com/.