Diodes: Essential Electronic Components for Current Direction Control

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ESD static protection diode

ESD electrostatic protection diode is an electronic component used to suppress electrostatic interference in circuits and protect electronic components.
ESD protection diode is an electronic component that prevents damage to electronic components caused by lightning, electrostatic discharge or arcing. It has the characteristics of small size, light weight, stable performance, etc. Its main function is to use the forward resistance and reverse resistance of the PN structure. Capacitors are used to alleviate electrostatic discharge and achieve the purpose of protecting the circuit. It is widely used in computer systems, communications equipment and industrial control equipment.

Transient voltage suppression diode

TVS diodes are electronic components used to protect sensitive electronic equipment from damage caused by high voltage transients. TVS diodes can effectively absorb pulses that may damage the device and eliminate interference caused by switching between buses. It has the advantages of fast response time, large transient power, low leakage current, breakdown voltage deviation, easy control of clamping voltage, lack of damage limit and small size. It is widely used in computer systems, communication equipment, AC/DC power supplies, automobiles, electronic ballasts, household appliances, instrumentation and other fields.

Schottky barrier diode

It is an electronic component produced by utilizing the Schottky barrier characteristics and has a rectifying effect. It is also called a hot carrier diode. Different from ordinary diodes, Schottky diodes have a lower conduction voltage drop and a higher switching speed; the biggest difference between the two is the reverse recovery time. The former takes about hundreds of ns, while the latter has no reverse recovery. time.

Zener diode

The Zener diode is a PN junction diode. Typical PN junction diodes use forward bias, while Zener diodes use reverse bias. In the reverse breakdown state, the current of the Zener diode can change within a wide range while the voltage remains basically unchanged. It can maintain the stability of the output voltage when the voltage fluctuates; it is mostly used to control, regulate and stabilize the voltage in circuits.

Switching diodes

Switching diodes are specially designed and manufactured for circuit switching. They are generally divided into ordinary switching diodes, high-speed switching diodes, ultra-high-speed switching diodes, low-power switching diodes, high back-voltage switching diodes, silicon voltage switching diodes, etc. Switching diodes have the advantages of small size, long service life, fast switching speed, and high stability. They are widely used in switching circuits, detection circuits, high-frequency and pulse rectification circuits and automatic control circuits of electronic equipment. Common series include 2AK, 2DK, etc.

Fast recovery diode

As a semiconductor diode with good switching characteristics and short reverse recovery time.
Fast recovery diodes are mainly used in electronic circuits such as switching power supplies, frequency converters, and PWM pulse width modulators as high-frequency rectifier diodes, freewheeling diodes, and damping diodes.

Rectifier birdge diode

As a power component, the rectifier bridge diode is widely used in various power equipment. The rectifier bridge is divided into a full bridge and a half bridge: the half bridge connects two diodes in series, and the full bridge connects four rectifier diodes into a bridge to convert the input AC voltage into the output DC voltage. Rectifier bridges are widely used in various electronic equipment, such as power adapters, chargers, LED light bars, etc., to ensure that the equipment works normally under AC power.

Pin diode

As a photodiode commonly used in optical communications, it has the advantages of fast switching speed, large controllable power, low loss, and high reverse breakdown voltage. The structure of PIN diodes is different from ordinary diodes mainly in that there is an intrinsic layer I layer sandwiched between the P region and the N region; the DC volt-ampere characteristics of the two are the same, but there are essential differences between the two in the microwave band. PIN diodes are variable impedances that only present a linear resistance to microwave signals and do not produce nonlinear rectification. Taking advantage of this characteristic, it is widely used in microwave and radio frequency circuits.

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