Proper use and maintenance of AC/DC Power Adapter

AC/DC Power Adapter usage tips, including safe and proper use and maintenance, are explained. We also provide advice to help you use your AC/DC Power Adapter for as long as possible.

AC/DC Power Adapter - How to Use It for as Long as Possible

Avoid High Temperature and Humidity Environments

The standard operating environment for UNIFIVE AC/DC Power Adapter is 0 to 40°C. However, due to the characteristics of the internal components, the higher the temperature, the shorter the lifespan.

For example, compared to a Products used continuously at 20°C, the lifespan of a Products used in a 40°C environment (20°C higher) may be reduced to approximately one-quarter.

Even when used in an air-conditioned room, placing the adapter in a confined space such as the back of a shelf, clustering multiple units on a power strip, or placing it under a blanket or cushion can cause localized heat buildup. This raises the unit's temperature and shortens its lifespan.

Humidity itself does not directly affect lifespan. However, if temperature changes occur in a highly humid environment, condensation may form inside the Products, potentially damaging internal circuits. Strictly speaking, this is not a reduction in lifespan but a failure before the end of its expected life.

From the perspective of the AC/DC Power Adapter, internal condensation is the same situation described in our previous newsletter, "Keep It Dry!"

Click here for the article: Do Not Get Your AC/DC Power Adapter Wet...

Unplug Occasionally (About Once Every Six Months) and Clean the AC Pins

This is also related not to lifespan but to our previous newsletter "About Tracking Prevention...", and is also mentioned on the Ministry of Economy, Trade and Industry's Products Safety Guide page.

In some cases, there is a risk of fire. Therefore, not only for AC/DC Power Adapter but for all electrical Products, please make it a habit to clean AC plugs regularly.

Click here for the article: About Tracking Prevention for AC/DC Power Adapter...

Unplug AC/DC Power Adapter of Unused Products from the Outlet

Many modern Products remain in a standby state, with current flowing even when the power switch is off, so they can be used immediately.

Unplugging the AC/DC Power Adapter of unused Products not only extends the adapter's lifespan but also saves energy and prevents tracking - achieving three benefits at once.

Using a power strip with a switch provides the same effect. However, even in that case, maintenance such as cleaning the AC pins to prevent tracking is still necessary, separate from simply turning the switch ON/OFF.

Examples of Usage That Shorten AC/DC Power Adapter Lifespan and Recommended Installation Methods

Example photo of usage that shortens the lifespan of an AC Adapter

Example photo of recommended AC Adapter installation method

Do not use many AC/DC Power Adapter in one location
If using a power strip, leave ample space between AC/DC Power Adapter
Install in a location where heat does not easily accumulate

Follow the Proper Connection Order for AC/DC Power Adapter to Avoid Static Electricity Problems

Electrostatic discharge (ESD) is invisible but can cause serious damage to electronic devices. Static electricity can reach several kV or more and carries enough energy to destroy electronic components. Excessive static electricity is a major cause of internal component damage in AC/DC Power Adapter and may lead to failure.

Most importantly, always follow the correct connection order below.

First, connect the DC plug of the AC/DC Power Adapter to the electronic device.
Then, connect the AC/DC Power Adapter to the power outlet.

This order is important because connecting the DC plug to the device first grounds the AC/DC Power Adapter, creating a safe path for static electricity to dissipate. Conversely, if you connect the AC/DC Power Adapter to the outlet first and then connect the DC plug to the device, static electricity may accumulate, increasing the risk of discharge.

By thoroughly implementing static control measures, you can improve safety and extend the lifespan of both AC/DC Power Adapter and electronic devices.

UNIFIVE also responds to requests for long-life AC/DC Power Adapter and AC/DC Power Adapter that operate over a wide temperature range.

For more details, please feel free to contact our sales department.