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DC Fans

DC fans, also commonly known as brushless DC fans, are fans powered by direct current. DC fans require additional electronics to convert alternating current (AC) to direct current (DC). DC fans are usually used in high heat applications. Typically, DC fan motor designs tend to run slower than AC fan motors since DC motors have less rotational inertia. But they are generally more efficient and have greater longevity due to no physical brushes that wear and eventually need to be replaced.

PMD2408PTB1-A.(2).GN application field and working principle

PMD2408PTB1-A2.GN is a plastic DC Fan designed and produced by NMB Technologies Corporation, an American technology company headquartered in Tokyo, Japan. It is capable of pulling air at a rate of 2.15 m3/min in the range of 4.30 puls/min. The fan is typically used for cooling components in industrial and consumer electronics using secondary air flow. It features a 9.9-inch (252 mm) L x 9.9-inch (252 mm) H x 3.15-inch (80 mm) W dimension, with a weight of 1.06 pound (480 g). PMD2408PTB1-A2.GN has an operating voltage of 12 VDC, a starting voltage of 3.4 VDC, and a maximum power consumption of 11.1 W.

The fan is equipped with a 24-pole in-runner motor, which creates an air flow that is similar to that of an AC motor, but without electrical brushes. This type of motor generates a higher airflow and a steady performance regardless of the fan\'s operating speed. Its blades are designed to be aerodynamic, allowing for a greater air flow rate with the lowest possible noise, bringing the sound pressure to a minimal level of 14.5dB(A).

The fan is also designed to run at lower temperatures than the typical AC motor, ensuring it has a longer life span. The PMD2408PTB1-A2.GN is also integrated with thermal overload protection, which helps protect the fan from being damaged by overheating. This fan is suitable for a variety of applications such as servers, telecommunications equipment, office appliances, medical devices, air conditioners and more.

In addition, the fan is UL, CE, and RoHS certified, meaning it is safe and efficient to use. Its insulation class is class A (105°C) and it is built with thermoplastic material. This makes it highly durable and resistant to heat, vibration, shock, dust, moisture, and corrosion.

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