Don´t throw away 13 kWh per year! Switch-mode adapters Minwa will help you with it

If we compare a power consumption of classic adapters to switch-mode ones in a no load condition (standby), we will come to surprising values. The difference can be up to tens of kWh per year.
This is an archive article published 08/15/2012. Some information may no longer be up to date and in line with the current state. Please contact us in case of interest.

If we take as an example a relatively common 12W 12V/1A adapter, we can suppose about 2W power consumption in a standby mode. Modern switch-mode adapters have this power consumption only 0.5W (often even below 0.3W). It is 1.5W, in other words over 13 kWh a year. If we compared an overall efficiency at a real load, we would very probably count even bigger difference, because the efficiency of a switch-mode adapter is mostly 70-90%, while the efficiency of a classic circuit (transformer + a linear stabilizer) is often below 50%.

From this point of view, switch-mode adapters Minwa , clearly win over classic adapters. They are available directly from our stock, providing all benefits of switch-mode power supplies and they are a suitable substitution for classic adapters. In the MW3 series can be found types with an adjustable output voltage in a range of 3-12V and with exchangeable output DC connectors. In the Nx series, types with a fixed output voltage can be found and with a fixed 5.2/2.1 mm output DC connector. New adapters are resistant to shortcut and overload and they meet the most recent requirements about energy efficiency (EuP/ErP 2). A relatively stable - regulated output voltage enables to directly power many devices, without any additional (LDO) stabilizers - linear regulators, what further simplifies a target device design. Thanks to small dimensions, low weight and last but not least - also thanks to a very competitive price, they represent a suitable solution of a power supply for various devices.

In case of interest even in non-stock types, please contact us at

Don´t throw away 13 kWh per year! Switch-mode adapters Minwa will help you with it

Advantages / Features:

  • universal switch-mode adapters
  • AC 100-240V, 60/50Hz input
  • DC output 3.0/4.5/5.0/6.0/7.5/9.0/12V or a fixed voltage
  • shortcut and overload-proof
  • small dimensions and a low weight
  • competitive price

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Additional products


AC/DC Adaptor 71W 12V/5A Plug 5,5/2,1mm

Desktop Adapters

Ord. No.: 91689
Manufacturer: MINWA
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