SMPS Myrra – Universal and Efficient Power Supply for IoT Applications

Advantages of Myrra PCB-mounted SMPS

Compact design

One of the main advantages of the 49xxxC and 49xxxE series of AC/DC converters from Myrra is their compact design. By integrating power circuits directly onto the printed circuit board (PCB), these power supplies eliminate the need for bulky external components, saving valuable space in electronic devices. The compact form factor makes PCB-mounted SMPS ideal for applications where size is a critical factor.

High efficiency

Compared to traditional linear power supplies, switched-mode power supplies (SMPS) are known for their high efficiency. By rapidly switching the input voltage at high frequencies, they can regulate the output voltage with minimal energy loss. This efficiency not only reduces power consumption but also helps maintain the overall temperature of the device at lower levels. 

Flexibility in design

Another advantage of these power supplies is their high design flexibility. Manufacturers can easily adapt these power supplies to meet the specific voltage and current requirements of various applications. Additionally, they offer features such as overvoltage protection, overcurrent protection, and thermal shutdown, ensuring the safety and reliability of connected devices.

Application in a wide range of applications

In general, PCB-mounted AC/DC converters find applications across many industries, including telecommunications, medical devices, consumer electronics, and automotive electronics. They are also commonly used in devices like Wi-Fi routers, LED lighting, and industrial automation systems.

When designing or using these power supplies, several key factors should be considered to ensure optimal performance and reliability. Compliance with EMI/EMC standards, output voltage ripple, and thermal management should be carefully evaluated.

Key features of SMPS 49xxxC and 49xxxE PCB-mounted series by Myrra:

• Small compact size –2 W to 5 W for PCB mounting
• Operating altitude of up to 5000 meters above sea level
• Output voltage range: 3,3 VDC – 30 VDC.
• Input voltage range: 85 VAC – 265 VAC/47 – 63 Hz or 120 VDC – 370 VDC.
• Very low standby power consumption < 0,1 W.
• Better energy sufficiency: over 71 %, meeting Energy Star and ES code of conduct requirements.
• Encapsulated design and same footprint as EI38 transformer, allowing easy application updates without PCB redesign.
• Safety: Complies with IEC/EN61558-2-16, IEC/EN60335-1, IEC/EN62368-1, UL62368-1, CSA C22.2 No.62368-1-14, CE, VDE, ENEC, UKCA.
• Materials: uses UL 94-V0 plastic and resin. 
• EMC: Meets EN55032, FCC Part 15, Class B, EN/IEC61000-3-2 Class A, EN61000-3-3.
• Resistance: complies with EN61000-4-2, EN/IEC61000-4-3, EN61000-4-4, EN61000-4-5, EN61000-4-6, EN61000-4-8, EN610004-11.

"PCB-mounted switched-mode power supplies from Myrra are a versatile and efficient power solution for modern electronic devices. With their compact design, high efficiency, and design flexibility, they are suitable for a wide range of applications across various industries. By carefully considering design aspects and requirements, you can leverage the advantages of PCB-mounted SMPS to create innovative and reliable electronic devices," summarized Pavel Kováč, product specialist at SOS electronic. 

We offer a wide range of Myrra PCB-mounted AC/DC converters directly from our stock. We can also provide other models upon request under favorable conditions directly from the manufacturer.