What's the difference between the shortkid diode and the field effect tube
Since replacing the traditional common diodes, the shortkid diodes have been favoured and favoured by users, but sometimes there are silly moments
The shortki diode is a diode, characterized by low power consumption, hypervelocity, very short reverse recovery time, low positive voltage, suitable for integrated circuits, and the field effect tube is a triode, characterized by high resistance of input, low noise, low utility, small leakage of electricity, a good switch, suitable for magnifying or switching circuits。
The diodes and the triodes are completely two types and cannot be compared, but are the same as electronic components。
Shortki diodes and ordinary diodes or field effect tubes have a somewhat similar appearance, and users may be confused when using them
How to separate the field effect tube from the shortki diode
What's an effect tube
The field effect tube is the abbreviation of the field effect transistor and should be abbreviated as fet. The field effect tubes are usually divided into two categories: 1) jfet and mosfet. Both types of effect tubes are pressure-controlled devices. The field effect tube has three electrodes, namely, fence g, leak d and source s. Mosfet is currently widely used and jfet is relatively small. Mosfet can be divided into nmos and pmos, and the following is a chart of the structure of pmos, nmos and mosfet。
The structure of pmos is as follows: two p-type semiconductor p+ areas have been made on the base of the n-silic liner, which are referred to as source s and leak d, respectively, and pull out the fence g on the insulation of the n-silicate. Nmos ' physical maps and quotations are shown below。
What's a shortky diode
The shortki diode, also known as the stairwell diode, is a diode formed from metal and semiconductor contact and is characterized by:
Reverse recovery time is very short and is ns-level
(b) a very low positive conductivity pressure reduction: around 0. 3-0. 5 v
(b) large leaks and low reverse shock penetration
In low-pressure switch power, for example, the shortki diode mbr 30100, the physical and structural maps of which are shown below。
The shortki diode has three electrodes, one of which is a cathode, consisting of two bipolar cathodes。
Questions on the reverse diode of the field effect tube
In order to ascertain the true state of the matter, we took several samples with the diode symbol for testing and found the following two scenarios:
1. De facto home-based parasitic diodes; 2. Integrated shortki diodes
In the former case, it is estimated that the graphics from other documents are copied directly when documents are made. The characteristics of the secondary tube of the body should be specified in the specifications. But please note that it's a diode tube, not a pressure tube, and don't let it pass out。
In the second case, note that it is the shortki diode, and the symbols indicated in the figure are not correct. Some components are so integrated, and there must be a description of the relevant parameters in their parameter tables, i. E. Voltage current parameters for the shortki diode, which should be noted when identifying the components
There is also the possibility that the marking of the field effect tube piercing the zone will feature the steady pressure tube。
Of course, as producers, they do not have any safeguards commitments for this characteristic of field effects management. The specifications therefore generally do not contain a description of their characteristics and a table of parameters. The component cannot work in the area when it is actually used。
Only, for different manufacturers, the resistance of components is different, and some originals are easily damaged after they have exceeded the bursting voltage, while some components are resistant to the shock of a higher blow-through, and this, in some cases, determines how the mass of components feels in the user's mind。
Tables, and note the differences from inverted diode parameters. If correct, indicate that there is a parallel diode, otherwise it is a graphic error。
