D2SB05HD2G

Diodes - Bridge Rectifiers are commonly used in power supplies, electronics and industrial equipment and can be found wherever AC power is converted to DC power, allowing circuits and appliances to be powered with no interruptions. D2SB05HD2G is a type of Bridge Rectifier consists of two diodes connected in a wheel configuration combined with a thermistor to protect the circuit from high-energy transients. This article will explain the application field and the working principle of the D2SB05HD2G.

The main application field of the D2SB05HD2G is alternating current (AC) to direct current (DC) conversion. In AC to DC conversion, the input voltage needs to be “rectified”, meaning it needs to be changed from an AC signal to a DC signal. This is performed by the Bridge Rectifier, which when connected to the AC source, gives us a DC output while maintaining a minimum voltage drop. The D2SB05HD2G is a type of Bridge Rectifier which offers resistance to transient currents, and is often used in the power supplies of TV’s, computers, DVD players and other such household appliances.

The D2SB05HD2G has a typical forward voltage drop of 0.6 volts and a high surge current rating. The thermistor is located inside the rectifier, and it helps protect the rectifier from high-energy transients which can damage it and the attached circuitry. It is connected in parallel to the two diodes, and its role is to limit the current that enters the diodes when subjected to a transient voltage or current. When this happens, the thermistor immediately starts limiting the current, preventing further damage.

The D2SB05HD2G works by allowing only one diode to conduct current at a time. In the circuit shown in the image below, there are four diodes in a “WHEEL” configuration. During a given time period, either the top left or bottom right diode will conduct, depending on the input voltage. This is called a “Half Wave Rectification”. By connecting diodes in this configuration, a “Pulsating DC” voltage is created, by allowing only one diode to conduct at a time. The D2SB05HD2G can also be used for “Full Wave Rectification”, where two diodes conduct at the same time. The output voltage from a Full Wave Rectifier has twice the frequency of the input voltage, and it is smoother. This makes it more suitable for many applications like in power supplies where an even DC signal is needed.

When connected to an AC source, the D2SB05HD2G acts as a switch, allowing current to flow in only one direction. It takes in an AC signal, and then allows current to flow in only one direction, creating a DC signal. This is done by the alternating current flows through the diodes in opposite directions, the result being a DC signal at the output.

This is how the D2SB05HD2G works and is used in AC to DC conversion. As mentioned earlier, its main application field is household appliances, computers, it is also suitable for use in other high power applications such as electric motors and welders. Whenever an AC signal needs to be converted to DC, the D2SB05HD2G can be used, making it a widely used diode in electronics. It has a high surge current rating, a low voltage drop and a thermistor to ensure protection against transients.