The new products represent an alternative to conventional combinational systems for supplying electricity to 2.5W – 20W applications.
The smallest SMR20 modules are very compact, with a power output of 2.5W to 20W at 70°C and a standby power loss of only 0.15W.
Their dimensions are 23.5 x 23.5 x 17H. These high-quality products are TA certified for 70°C, 90°C, and 105°C.
The low standby power consumption of
these new SMR products allows them to replace EI30, EI38, and EI48 transformers. In addition to conventional 50Hz transformers, they also replace fuses, rectifier bridges, and filter capacitors.
The products meet the requirements of the UL RoHS, UL EU, UL Class 2, and CE product certification programs and are IECEE approved.
Typical applications include:
• Devices with standby function or other auxiliary power supply
• Industrial automation, calorimeters, consumer electronics applications
• As an alternative to DC/DC converters for use with DC current
(Telecom equipment)
• As an alternative to transformers in all AC/DC applications with a power rating up to 20W
Block diagram for SMR20, SMR30, SMR38, SMR42, and SMR48.
The SMR20, SMR30, SMR38, SMR42, and SMR48 from Lauma Elettronica are galvanic-isolated reverse-throw converters between AC input and DC output. The output voltage is adjusted using a closed-loop control system.

