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It was the invention of first semiconductor devices it has four layers. It is also called as PNPN diode. It is equal to a thyristor without a gate terminal which means the gate terminal is disconnected. As there is no trigger inputs the only way the diode can conduct is by providing forward voltage. It stays on one’s it turned “ON” and stays off one’s it turned “OFF”. The diode has two operating states conducting and non-conducting. In non-conducting state the diode conducts with less voltage. It is also called as snap-off diode or charge-storage diode. These are the special type of diodes which stores the charge from positive pulse and uses in the negative pulse of the sinusoidal signals. The rise time of the current pulse is equal to the snap time. Due to this phenomenon it has speed recovery pulses.
This model original produce by Japanese brand Sanken (SK), and later SK stop production,and American diode company HVCA (Dean Technology) start to produce it and market it in same part number “UX-F0B”. It is most popular model design-in to world famous (high end) X-ray power source manufacturer’s PCB board, due to very fast recovery time and high frequency (300khz) feature. (This is very similar to most popular Murata high voltage ceramic capacitor (15kv 102 ZM materaial, DHR4E4C102K2FB) also used in high end X-ray power source.) , DHR4E4C102K2FB market demand can be one million pcs globally. since this UX-FOB model is super hot,some less famous Japanese component manufacturer even produce replacement model call “MD8CP5” . HVC also offer alternative and replacement model to UX-FOB, HVC model call HVD-SL513G, which provide same 40ns respond and 13kv reverse voltage, higher voltage withstand can making component more reliable and customer can series connection less diode to achieve given value,and finally cost down to general PCB board. Read more information on 10kv 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.
For HV ceramic capacitors with rated DC voltage from 1kv to 50kv and capacitance up to 15000pf in 40KV. We use the same standard of Vishay. We have both ceramic disc style and door knob style. Our door knob styel HV caps already widely used in U.S.A and Germany’s smart grid. Ceramic disc one already used in PHILIPS’s medical equipment. Our HV resistors are thick film non-inductive type, surface coating, built-in high voltage, minimum size, bigger power, wider range resistance features. Power from 1/4W to 50W, resistance range 10-1000M, perfactly apply in AC, DC pulse circuits. LEAD-FREE ROHS comply. Customer can use our HV resistor to match our HV caps item. Find more details on https://www.hv-caps.com/.