MYRRA 47154 12V 5W PCB Mount Power Supply

The MYRRA 47154 is a single output regulated switching power supply, designed as an encapsulated electronic transformer. This switched mode power supply utilises flyback topology and offers a superior alternative to traditional power supplies in most common low-powered applications. It delivers significantly increased power—almost three times that of a standard EI30 transformer—while achieving a typical efficiency of 75%, compared to 40% for conventional supplies, and features low standby power consumption. Despite its compact footprint (same as an EI30 transformer), it replaces regulated types of transformers seamlessly.

This versatile electronic transformer supports a wide input voltage range from 85VAC to 265VAC or 85VDC to 370VDC, with an input frequency range of 47Hz to 440Hz. It provides a regulated output of 12VDC at 420mA, with a rated power of 5W. The unit is protected by an integrated fusible resistor, output short circuit protection, and thermal shutdown with automatic recovery, ensuring reliable operation up to 50°C.

Specifications

• Input Voltage (AC): 85VAC to 265VAC
• Input Voltage (DC): 85VDC to 370VDC
• Input Frequency: 47Hz to 440Hz
• Output Voltage: 12VDC
• Output Current: 420mA
• Output Power: 5W
• Efficiency: 75%
• Operating Temperature: Up to 50°C
• Protection: Integrated fusible resistor, short circuit, thermal shutdown with auto recovery

Ideal for power management and industrial applications, the MYRRA 47154 is a reliable and efficient solution for your power supply needs.