Switching power supplies, or switch-mode power supplies (SMPS), are critical components in modern electronics, providing efficient and reliable DC power across a wide range of applications. They convert AC or DC input voltage into regulated DC output using high-frequency switching, enabling compact size, high efficiency, and precise voltage and current control. Advanced SMPS designs include protection features such as overvoltage, overcurrent, and short-circuit safeguards, ensuring stable and safe operation in demanding environments. In this article, we will introduce 15 leading switch mode power supply manufacturers and distributors, highlighting their key products, features, and applications.
1. Mean Well switching power supply
Founded in 1982, Mean Well, a leading switching power supply manufacturer, offers diverse switching power supplies. Its AC/DC series (e.g., RS-150) has input 85-264V AC, output 5-48V DC, 150W power, efficiency up to 90%. LED drivers (HLG-100) provide 30-54V DC output, 100W power, and IP67 protection.
It also has DC/DC converters (D-15) with 9-36V DC input, 5-24V DC output, 15W power, over-current protection, suitable for industrial control and medical equipment.
2. Sell-Best switching power supply
Sell-Best, a professional distributor of switching power supply, offers a range of switching power supplies, including enclosed units, DIN-rail mountable, AC-DC, and DC-DC converters. Designed for industrial automation and electronic devices, they support common voltages such as 12V, 24V, and 48V, combining cost-effectiveness with reliability.
Their products ensure stable voltage output, low ripple, and robust thermal management, meeting strict industrial requirements. Sell-Best power supplies help optimize performance while reducing energy loss in both small- and large-scale applications.
3. Schneider Electric switching power supply
Schneider Electric, an industrial switching power supply manufacturer, provides switching power supplies, including DIN-rail mountable units, with input voltages from 100V to 500V AC and outputs from 5V to 48V DC. Mean Well switching power supplies are widely used in automation, process control, and energy management, valued for efficiency, reliability, and safety.
Its data center power supplies (e.g., Galaxy) have 200-240V AC input, 12V DC output, 1000W power, redundant design, complying with EN 61000-6-4 standards.
4. Eaton switching power supply
Eaton offers durable and reliable switching power supplies, primarily for 12V and 24V DC applications. Their products are widely used in industrial control, drives, automation, and sensors, valued for compact design and high efficiency.
Eaton power supplies provide stable voltage output, low ripple, and protection against overload, short circuit, and overvoltage, ensuring consistent performance in demanding industrial environments.
5. ABB switching power supply
ABB’s switching power supplies, including the CP series, deliver 24V or 48V DC output with currents from 5A to 40A and efficiency up to 92%. They are designed for energy management and automation, performing reliably even at temperatures up to 70°C.
ABB emphasizes compact design, high reliability, and safety features, such as short-circuit and overvoltage protection, making their products suitable for industrial and commercial applications.
6. Siemens switching power supply
Siemens SITOP series power supplies provide 24V DC output, widely used in industrial automation. Their products feature high reliability, comprehensive diagnostics, and rapid installation.
SITOP supplies are designed for continuous operation in harsh environments, offering protection against overload, short circuit, and temperature extremes, ensuring stable performance for automation systems.
7. TDK-Lambda switching power supply
TDK-Lambda, a smps manufacturing company, offers AC-DC and DC-DC switching power supplies ranging from 4W to 45,000W, suitable for medical, industrial, process control, testing, and robotics applications.
Their products focus on high reliability, long lifespan, and precise voltage regulation. Advanced protections, including overvoltage, overcurrent, and thermal shutdown, ensure stable operation in critical applications.
8. OMCH switching power supply
OMCH is a professional switching power supply manufacturer focusing on industrial and medical switching power supplies, with rich experience in customizing solutions. Its AC/DC power supplies (e.g., OM-60) input 85-264V AC, 12-24V DC output, 60W power, efficiency 85%, low temperature rise, for industrial control.
DC/DC converters (OM-D10) have 12V DC input, 5V DC output, 10W power, long service life, used in medical/communication equipment, complying with CE.
9. LOVATO Electric switching power supply
An Italian firm specializing in electrical control and power solutions, LOVATO Electric excels in making reliable products for industrial and building sectors. Its industrial power supplies (e.g., LPS2410) input 100-240V AC, 24V DC output, 10A current, 240W power, efficiency 86%, for automation.
Building automation models (LPS1205) input 85-264V AC, 12V DC output, 5A current, 60W power, DIN-rail mount, suitable for lighting controls.
10. Omron switching power supply
A global leader in automation and electronic components, Omron integrates advanced tech into its power supplies for industrial and medical use. Omron’s industrial AC/DC power supplies (e.g., S8VK) input 85-264V AC, 24V DC output, 1.5-40A current, efficiency 92%, low ripple, for robotics.
Medical power supplies (S8VM) input 100-240V AC, 12V DC output, 20W power, EN 60601-1 compliance, high reliability for diagnostic devices.
11. Delta Electronics switching power supply
A top global provider of power management solutions, Delta Electronics focuses on energy efficiency and eco-friendly designs. Delta’s AC/DC power supplies (e.g., DPS-200) input 85-264V AC, 12-48V DC output, 200W power, efficiency 91%, for industrial control/data centers.
LED drivers (DLC-series) input 100-277V AC, 30-54V DC output, 100W power, IP65, used in outdoor lighting, meeting Energy Star.
12. Phoenix Contact switching power supply
A pioneer in electrical connection and automation tech, phoenix Contact offers robust power supplies with seamless system integration. phoenix Contact’s QUINT series (QUINT-PS/1AC/24DC/10) input 85-264V AC, 24V DC output, 10A current, 240W power, efficiency 92%, anti-interference.
Its power supplies have easy installation, with accessories like surge protectors, suitable for process control/power distribution, complying with IEC 61558.
13. Moxa switching power supply
Specializing in industrial networking and automation, Moxa designs power supplies for harsh environments like transportation and energy sectors. Moxa’s industrial power supplies (e.g., Moxa EDS) input 85-264V AC, 24V DC output, 5-10A current, 120-240W power, -40~75°C operating temp, anti-vibration.
Transportation models (Moxa TPS) input 12-48V DC, 24V DC output, 5A current, 120W power, for rail/energy, meeting EN 50155.
14. IDEC corporation switching power supply
A global manufacturer of industrial automation products, IDEC corporation emphasizes user-friendly and durable designs in its power supplies. IDEC’s industrial power supplies (e.g., PS5R) input 85-264V AC, 24V DC output, 1.5-10A current, 36-240W power, efficiency 87%, for machine tools.
Robotics power supplies (PS5R-H) input 85-264V AC, 24V DC output, 10A current, 240W power, compact, quick-connect terminals.
15. Powerbox International AB switching power supply
A leading provider of high-performance power solutions, Powerbox International AB caters to aerospace, defense, and medical industries with precision products. Powerbox’s aerospace power supplies (e.g., PB-1000) input 28V DC, 5-28V DC output, 1000W power, high power density, -55~85°C temp range.
Medical models (PB-MED) input 100-240V AC, 12-48V DC output, 500W power, EN 60601-1 compliance, for critical medical equipment.
The Top 15 switch mode power supply manufacturers and distributors above cover a wide range of switching power supply solutions, catering to diverse needs from industrial control, medical equipment, and data centers to consumer electronics and harsh environmental applications.
