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SMD diodes have revolutionized the TV industry, which is a huge improvement, but MarketWatch technology columnist John C. Dvorak points out that what the TV industry never thought was that they turned out to be this time.

Schottky diodes are named after their inventor, Dr. Schottky, short for Schottky Barrier Diode (abbreviated SBD). SBD is not fabricated by the principle of forming a PN junction by contacting a P-type semiconductor with an N-type semiconductor

The allowable operating temperature of the diode is determined by the allowable junction temperature of the diode. The power consumed by the die P-N junction when the diode is operating is the current flowing through the diode multiplied by the voltage drop, which produces heat that causes the junction temperature to rise. When the junction temperature rises to a certain temperature, the tube will be damaged. Different configurations of diodes allow different operating temperatures due to their

By using the unidirectional conductivity of the diode, alternating current alternating in direction can be converted into pulsed direct current in a single direction.

As a semiconductor device, a rectifier diode has a unidirectional conduction property. Therefore, we can determine the electrode of the diode by detecting the positive and negative resistance values with a multimeter, and can also estimate whether the diode is damaged. The specific rectifier diode detection method is as follows

SBD is an abbreviation for Schottky Barrier Diode (abbreviated as SBD). SBD is not fabricated by the principle of forming a PN junction by contacting a P-type semiconductor with an N-type semiconductor,

Schottky diodes are based on barriers formed by metal and semiconductor contacts, referred to as Schottky Barrier Diodes, which are low-power, high-current, ultra-high-speed semiconductor devices with positive The voltage is reduced by 0.4V, the switching speed is very fast, and the reverse recovery time is very short (2-10 ns nanoseconds). The disadvantage is that the reverse leakage current is large, the withstand voltage is low, generally lower than 150V, and is mostly used in low voltage app

The longer of the two leads of the LED is the positive pole and should be connected to the positive pole of the power supply. Some of the LEDs have the same length of the two leads, but the tube has a raised small tongue, and the lead near the small tongue is the positive.

The crystal diode is a p-n junction formed of a p-type semiconductor and an n-type semiconductor, and a space charge layer is formed on both sides of the interface, and a self-built electric field is built. When there is no applied voltage, the diffusion current caused by the difference in carrier concentration on both sides of the p-n junction is equal to the drift current caused by the self-built electric field

The classification rectifier bridge has the characteristics of small size and convenient use, and is widely used in household appliances and industrial electronic circuits.

From the forced convection cooling analysis of the above rectifier bridge without radiator, it can be seen that the heat dissipation path through the surface of the rectifier bridge shell is equivalent to the heat dissipation through the pin.

Principle: The working principle of the bridge rectifier circuit is as follows: When E2 is positive half cycle, the forward voltage is applied to D1 and D3, D1 and D3 are turned on; the reverse voltage is applied to D2 and D4, and D2 and D4 are cut off.

Light-emitting diodes are also called LEDs. LEDs have been covered at all levels, from lighting design to indicating reminders, LEDs are involved. Will explain to everyone the phenomenon that the LED in the circuit is not bright, see if the reason why the LED is not bright is caused by insufficient voltage, or caused by the drive current is too small?

Diodes occasionally have some minor faults in use. In fact, some minor problems can be prevented and can be effectively avoided. Next, we will introduce some things you should pay attention to when using Schottky diodes and TVS tubes.

Transient suppression diodes are electronic components used to protect sensitive electronic equipment from high voltage transients. They handle overvoltages faster than most other types of circuit protection devices.