UPS power is an important uninterruptible power supply in the world today, providing a stable, uninterrupted power supply to computer network systems or other power electronics. Reliability is the most important indicator for all UPS power supplies, because it can protect other power equipment, and the entire power system will not work because of UPS power problems. Each UPS power user chooses priority when considering product reliability. UPS power supply reliability is usually affected by the following factors:

First, Electronic component temperature control of UPS power supply
For UPS manufacturers, they are also very concerned about the reliability index of their products. The strict requirements of UPS customers will inevitably optimize the selection of UPS materials. For UPS, higher efficiency means lower heat generation, and researchers believe that for every 10 °C rise in temperature, the life of power resistors, capacitors, and other electronic components in electronic products is halved. The reduction in heat generation will contribute to the reduction of the internal temperature of power resistors, capacitors, and other electronic components, thereby increasing the life of power resistors, capacitors, and other electronic components, which means that UPS power supply reliability is also improved. 

Second, UPS resistance cost problem
The current UPS power supply prices on the market are different. The lower the cost of the UPS power supply means the lower the UPS efficiency. The cost control often sacrifices the efficiency, reliability or UPS operating temperature of the UPS. In exchange for the UPS cost reduction at the expense of the stability of electronic devices such as precision power resistors and capacitors, the reliability of such UPS power supplies must be reduced. For some power equipment systems, it is unable to withstand the economic loss caused by the low efficiency of UPS power supply. Therefore, it is necessary to use high-level UPS products in purchasing high-end UPS power.

Third, UPS power supply cooling design issues
 The reliability of UPS power supply is high, and the internal temperature control of UPS is one of the main factors. However, the external heat dissipation problem is also very important. The UPS power supply should also consider the heat dissipation design of the machine itself. The good heat dissipation design can reduce the temperature and ensure the power resistance, electronic components such as capacitors, stable operating environment temperature control.

At present, the highest efficiency of UPS can reach 96% or higher, but the improvement of UPS efficiency is still pursued by the whole industry. The selection of high-quality electronic components is a reliable way to improve UPS efficiency. The power resistor MART227 can be used in the UPS power module. Quickly improve efficiency, while the power resistance of MART227 ranges from 0.001Ω to 100Ω, rated power is 60W~80W, and accuracy is ±0.1%. Low temperature drift ±50ppm/°C is an important electronic component for UPS power supply reliability.