In order to make POWER SUPPLY the increase in life expectancy, suggested the use of more than 30% output power rating model. For example, if the power system requires a 100W, suggest choose more than 130W output power rating model and so on, can effectively improve the life of POWER SUPPLY.

In addition still need to consider POWER SUPPLY working environment temperature, and there is no auxiliary additional cooling equipment, in high temperature POWER SUPPLY derating. The amount of curve to reduce the power output of the ring temperature.

According to the application needs to choose various function:

Protection function: over-voltage protection (OVP), over temperature protection, over load protection (OTP) (OLP).

Application of functions: signal function (POWER GOOD, POWER FAIL), the function of remote control, telemetry, parallel function.

Special function: the power factor correction (PFC), uninterruptible power supplies (UPS).

Select the required for compliance with the safety and electromagnetic compatibility (EMC) certification.