9WS0812H401

DC Fans

DC fans, as their name suggests, are fans powered by DC power, also known as cooling fans. They are widely used in electronic and electrical devices; some new types of DC fans contain built-in thermal sensors to prevent overheating. DC fans differ from AC fans in that they use direct current (DC) to rotate the fan blades, instead of alternating current (AC). This type of fan is often used in applications with restricted space, high vibration, long duty cycles, and environments where interruption or fluctuation of AC power is a concern.

The 9WS0812H401 is a DC fan which offers reliable performance, efficient cooling and silent operation. This fan measures 40x40mm and has a nominal speed of 4500 RPM (revolutions per minute). It features an efficient double ball bearing, high airflow rates of 3.9CFM, a low noise level of only 33dBA, and an extended life expectancy of 50,000 hours.

Application Field and Working Principle

The 9WS0812H401 is suitable for many applications due to its small size, reliable performance, and efficient cooling. It can be used in a variety of industries, including automotive, medical, industrial, military, consumer electronics, robotics, and audio/video. The 9WS0812H401 also features built-in temperature control, which makes it an ideal choice for environments where environmental conditions may change rapidly.

The 9WS0812H401 operates on the principle of thermoelectric cooling. In the simplest terms, this means that when the internal temperature of the fan rises beyond a certain point, electric current is generated. This current is then directed through a resistor, which controls the flow of current and keeps the fan running at a constant speed. One of the benefits of thermoelectric cooling is that it helps keep the fan running at an optimal operating temperature, while also promoting longer fan life.

The 9WS0812H401 is a reliable and efficient DC fan. Its small size, quiet operation, generous airflow rates, and temperature control capabilities make it an ideal choice for a variety of applications. With its extended life expectancy, the 9WS0812H401 offers a low cost and reliable solution for many cooling needs.