What are the differences between diodes？

There are many types of diodes, each with different functions and different from the other, so when we choose a product, we must choose a suitable product according to its different characteristics. If we forget this very important point, then the selected product may not be suitable for itself.

1. Rectifier diode

As far as the principle is concerned, the DC output from the input AC is rectified, and the size of the rectified current (100mA) is used as the boundary, and the output current greater than 100mA is usually called rectification.

The rectifier diode models produced and sold by Hecotech（合科泰电子） include 1N4007L, M7, S1M, M7F, GS1M, and many other different models.

2. Fast recovery diode

It can be understood as a fast diode; because the base region is very thin, the reverse recovery charge is very small, which not only greatly reduces the trr value, but also reduces the transient forward voltage drop, so that the tube can withstand a high reverse working voltage. Therefore, the reverse recovery time is fast, and it is usually used as a rectifier diode in a switching power supply, and as a freewheeling and reverse voltage absorption diode in the inverter circuit.

The fast recovery diode models produced and sold by Hecotech are RS1MF, RS1M, FR107L, and many other different models.

3. Switching diodes

Under the action of the forward voltage, the resistance is very small, and it is in the on state, which is equivalent to an on the switch; under the action of the reverse voltage, the resistance is very large, and it is in the off state, like an off switch. Using the switching characteristics of diodes, various logic circuits can be formed.

The switching diode models produced and sold by Hecotech include 1N4148WT, 1N4148WS, MMBD4148CC, 1SS400, 1SS355, 1N4448W, and many other different models.

4. Zener diode

It is made by using the reverse breakdown characteristics of the diode. The voltage across the circuit remains basically unchanged, which plays a role in stabilizing the voltage. It is a product that replaces the Zener diode. Diffusion type or alloy type made of silicon is a diode whose reverse breakdown characteristic curve changes rapidly, and it is made for use as control voltage and standard voltage.

The models of Zener diodes produced and sold by Hekotai include BZT52C5V1S, BZX84C5V1, BZT52C5V6, BZT52C12S, and many other different models.

5. Schottky diodes

A diode with a "metal-semiconductor junction" with Schottky characteristics. Its forward starting voltage is low. In addition to the material, the metal layer can also be made of gold, molybdenum, nickel, titanium, and other materials. The semiconductor material is silicon or gallium arsenide, mostly N-type semiconductors. This device is conducted by majority carriers, so its reverse saturation current is much larger than that of a PN junction that conducts with minority carriers. Since the storage effect of minority carriers in the Schottky diode is minimal, its frequency response is limited only by the RC time constant, so it is an ideal device for high-frequency and fast switching.

The Schottky diode models produced and sold by Hecotech include B5819WS, 1N5819WS, SD103AWS, SS14L, BAT54A, SS36F, and many other different models.

6. Transient Voltage Suppression Diodes

It can perform fast overvoltage protection for the circuit, and it is divided into two types: bipolar and unipolar.

The TVS diode models produced and sold by Hecotech include SMAJ5.0, SMAJ6.0, SMAJ7.0, SMAJ8.0, and many other models.

Hecotai has its own factory, the products are manufactured by the original factory and the quality is guaranteed. It is the first choice for domestic alternatives. For more hot-selling products, please contact our customer service.