With the variety of Cooltron computer cooling fans available, finding the one that fits your application can be a challenge. Beyond just making sure the dimensions are correct, there are also other things to consider. Characteristics such as voltage, speed, noise level, lifespan, and AC or DC power are all factors in making sure the fan fits your needs.

The Part Numbering System

The part numbers for Cooltron cooling fans can immediately tell you a lot about the fan's basic features. The part number indicates the type of power, size, bearing, voltage, lead type, speed, and other special features. Taking the part number FA1751B11T7C-31 as an example, the first two positions, FA, denotes an AC powered fan. The numbers 1751 represent the dimensions, in this case 172 x 150 x 51 mm. The letter B indicates a Dual Ball Bearing, which all of the available Cooltron fans feature. Next is the voltage, which for this example is 115V, shown by the number 11. Other variations include 22 for 230V or 12 for 12V. Lead type is shown by a T for terminal lead or W for wire lead. The next number indicates the level of speed, with the 7 in this example showing a high speed. Other fans can have a medium speed, shown by a 5, or even higher speeds shown by a 9 or 11. If there is a C in the part number, it means the fan features a capacitor and thermal control. The numbers after the dash indicate the specific version of the fan.

AC vs DC Power

There are a few differences between choosing AC or DC powered computer cooling fans. AC, or alternating current, means that the flow of electricity can change direction. They have a high voltage, making them more powerful. Keep in mind however, that not every application requires a high voltage fan. They work well in applications that are not harmed by electromagnetic interference, and in which proper ventilation is key, due to their constant flow rate. The Cooltron AC fans are typically black painted aluminum with 5-7 thermoplastic blades. By contrast, direct current, or DC powered fans use less energy due to their lower voltage. DC fans do not generate much electromagnetic interference and typically have longer lifespans.

Standard vs Excellence Series

Taking things a step further, Cooltron computer cooling fans are divided into the Standard or Excellence series. Standard series fans are ideal for most applications involving computers and cabinets, and provide a cost effective solution when an Excellence series fan is not required. The Excellence series fans are designed for applications that need high durability and performance. They typically have longer lifespans than Standard series fans and feature a wider operating temperature range. There are also certain series of Cooltron fans that are ideal for specific purposes, such as telecommunications, medical instruments, and power supplies.