(86 products available)
A 120mm x 38mm fan comes in various types, each with unique features and applications.
DC Fan
The 120mm DC fan is a direct current fan powered by a 12V direct current. It is commonly used in power supplies, automobiles, and robotics. Due to its simple design, a DC 120mm fan has an electric motor that spins the fan blades caused by the interaction of magnetic fields, thereby creating wind. The fans operate quietly, but they can be noisy depending on their speed. One advantage of the DC fan is the speed control feature, allowing users to adjust the speed based on their preferences.
EC or AirBlade Fan
The 120mm EC fan operates on direct current powered by an alternating current to direct current converter. Also known as AirBlade fans, they are energy-efficient and produce a lot of airflow. The main difference between an EC and a DC fan is that an EC fan has a built-in microprocessor to control the speed. This helps in optimizing energy consumption. EC fans can be controlled remotely and are commonly used in data centers, commercial buildings, and industrial applications.
AC Fan
Standing for Alternating Current, the 120mm AC fan takes 220V AC power. The fan is not very common in computer applications. It has a simple design with less than 10 internal components and is more durable than DC fans. Compared to DC fans, an AC fan can withstand a harsh environment. Some 120mm AC fans come with variable speed controllers and are used in heavy machinery, HVAC systems, and industrial equipment.
Blower
Unlike the 120mm fan that comes with blades, a 120mm blower is a small fan with wheels on a motor. It produces high pressure and less airflow. The 120mm blower fan compresses air and blows it out, creating a jet of focused high-velocity air. Because of this feature, a blower is suitable for cooling applications that require air to be channeled in narrow spaces. Typical applications include laptops, graphics cards, gaming consoles, and compact consumer electronics. One downside is that the 120mm blower fan is noisy due to the high-speed operation.
LED-Illuminated Fans
An illuminated 120mm fan has built-in LED lights that illuminate different colors while spinning. These beautifully designed fans add aesthetic appeal to computer cases and setups. The lights could be used to indicate the operational status of the fan. The LED 120mm fans come in a variety of colors and designs.
The following table summarizes some important specifications about the 120mm x 38mm fan:
It's crucial to keep 120mm x 38mm fans clean and in good condition. Regular maintenance makes sure that the equipment will continue to work properly and last for a long time. The following maintenance procedures can be used to assist the 120mm x 38mm fan in playing its proper role in the application.
The application of 120mm x 38mm cooling fans is diverse enough to cut across various industries. Here's an overview of notable industries where the 120mm x 38mm fan plays a pivotal role.
Data Centers and Server Racks:
In this industry, the primary purpose of the 120 x 38mm fan is to avert system downtimes, data loss, or interruptions caused by overheating. The fans are typically mounted in server chassis, cabinets, or racks. They work to create an airflow that maintains an optimum working or operating temperature for both the servers and components.
Computer Cases and Power Supplies:
120mm x 38mm fans are popular in PSUs and computer case constructions. They prevent overheating and ensure the smooth and steady functioning of the PSU and entire PC parts.
Industrial Machinery:
Fans with 120 x 38 mm dimensions find useful applications in areas like robots, transformers, or AC motors. Here, they help maintain an ideal temperature for electronic components. They ensure these devices function optimally and, most importantly, prevent any potential damage that may occur due to overheating.
Automotive Electronics:
In this industry, the fan's main job is to prevent component failure and overheating. The components that typically require the support of a 120mm x 38mm fan include control modules, infotainment systems, and battery packs, to list a few.
Telecommunications Equipment:
Some telecom equipment such as base stations, routers, and switches may use 120mm x 38mm fans to maintain a stable operating environment. This enables them to transmit signals, connect networks, and manage data seamlessly without interruption.
Medical Devices:
In this scenario, the 120mm x 38mm is mainly used to support the precise functioning and reliability of medical equipment. Some notable devices that may use the fan include diagnostic equipment, imaging systems, and patient monitors, to name a few. The fans help ensure patient comfort and maintain ideal operating tolerances for these devices.
When purchasing 120mm x 38mm fans, it is important to look at various factors to ensure they meet the intended application's requirements. Begin by determining the purpose of the fan. Whether it's for cooling, ventilation, or sincical purposes, the intended application will influence other specifications that need to be considered.
Next, consider the airflow requirement. Airflow is usually measured in cubic feet per minute (CFM). Choose a fan with an airflow rating that is suited for the intended application. For effective performance, the fan's noise level should be compatible with the surrounding environment. Fans with a noise level measured in decibels (dBA) that are too loud for sensitive and busy environments should be avoided.
The operating voltage of the fan should also be determined based on the application's requirements. For instance, a system that operates 24/7 will require a high continuous performance rated fan. The fan's durability is also important to ensure it lasts over time. Check the fan's bearing type and look for sealed or IP-rated protection to safeguard against contaminants.
Consider the fan's dimensions to ensure they fit into the intended application's space requirements. If aesthetics are important, look for fans with customizable features such as color options and LED lights.
Finally, consider the fan's cost. While deciding on a budget, be sure to choose the most important specifications for the intended application. Opting for high-performance fans may cause one to spend above the intended budget. However, choosing low-performance fans may result in premature failure.
Q1 What is the air flow rate of a 120mm x 38mm fan?
A1 The air flow rate is how much air the fan moves per minute, measured in cubic feet per minute (CFM). For 120mm x 38mm fans, the CFM can differ based on the design and speed. It can typically range from 60 to 140 CFM. To get a maximum CFM, one usually picks a fan that runs at a higher RPM. Keep in mind that higher CFM means more air movement, but it may also bring up the noise level.
Q2 Do 120mm x 38mm computer fans make noise?
A2 All 120mm x 38mm fans make some noise because they move air. The noise is typically measured in decibels (dB). The dB level can vary based on the speed and design. It may range from 20 to 30 dB for low to medium speeds. Higher RPMs tend to make the fan noise a bit louder. Some manufacturers try to reduce the noise by making the fan blades more aerodynamic or using rubber pads to dampen the noise.
Q3 Are there speed controllers for 120mm x 38mm fans?
A3 Yes, 120mm x 38mm fans can have fan speed controllers. The role of the controller is to let adjustment of the speed, noise, and amount of air flow. They can be standalone devices or get integrated into a computer motherboard. The controllers work by either changing the voltage going to the fan or using PWM to dynamically adjust the speed.
Q4 Can a 120mm x 38mm fan run on batteries?
A4 Yes, it is possible to use a 120mm x 38mm fan with batteries but only if the battery voltage matches what the fan needs. For example, a 12V battery would work with any fan that is 120mm x 38mm in size that runs on 12 volts. The fan will not work well if the voltage is too low or too high. The battery will run the fan until it gets discharged.
浙公网安备 33010002000092号
浙B2-20120091-4