There are many types of diodes, each with different functions and different from each 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 It 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 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 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.