Switching Power Supply Manufacturers in the United States

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The US electronics manufacturing industry contributes significantly to the country’s economy, supporting over 1.3 million jobs and accounting for about $714 billion of their GDP.

One of the reasons for this is the fact that the said industry is integrated horizontally and vertically across different markets. Another reason is that their electronics and electrical equipment are patronized in the local and international markets.

If you’re keen on buying export-quality electronics supplies like switching power supplies, consider these top US manufacturers.

List of Switching Power Supply Manufacturers in the United States


Address: Tualatin, OR 97062

CUI Inc started as a seller of electromechanical components and oscilloscopes. After that, they started expanding and ventured into designing power supplies.

It started as a side project. However, with the steady demand of their customers, the said side gig grew to become one of the company’s most extensive product lines.

They serve the medical, industrial, IoT, and consumer industries. 

Their switching power supplies were developed to be used in various applications like process control technology and machine automation.

These models range from 3 W to 300 W. These also feature up to 93% efficiency, universal input voltage ranges, and 3.3 Vdc to 48 Vdc output voltages.

These models also include various protections, output trim, on/off remote control, correction, and an active power factor.

Advanced Energy

Address: Fort Collins, CO 80525

Advanced Energy devoted more than a decade to perfecting power to serve its global customers.

They develop, design, and manufacture precision power conversion, control, measurement, and highly engineered solutions for complex and mission-critical processes and applications.

The company established collaborative partnerships across the globe to innovate power’s future, propel customer growth, and meet advanced technological developments. 

Advanced Energy’s XRG70 power supply series offers premium packaging, stress control, and high voltage stability.

The said series includes a plethora of power supply models ranging from 25 kV to 70 kV. These power supplies are for cathode applications and are based on grounded filament switches.

Loop controls control these filaments. Its power stages use a resonant current-run push-pull converter providing a high frequency and reliable operation. 


Address: Suite 15 Mahtomedi, MN 55115

COSEL USA, Inc. was established in 1969 as a manufacturer and seller of EMI filters and electrical components.

As of May this year, the company was reported to have a 2,055 million yen capital. After the month ended, their capital yielded 27,020 million yen in consolidated sales.

Their headquarters is in Kami-Akae Machi, Toyama City, Toyama Prefecture, Japan, with satellite offices in the United States. 

Their PJA switching power supply series comprises units with AC85 ~ 264V 1Φ rated input and 100 W to 1,500 W rated output wattage.

It also has an economical design and a vast -20 degrees Celsius to +70 degrees Celsius temperature range that requires derating. It is also IEC61000-3-2 Class A compliant and comes in various options.


Address: Walnut, CA 91789, USA

P-DUKE was established in 1992, and since then, it has focused on researching, developing, producing, selling, and servicing converters and other related products.

The company’s products are sold under their brand. With experience, the company accumulated excellent skills that improved product awareness and fostered cooperation with various multinational companies—these institutionalized P-Duke’s role in the international market. 

One of the company’s switching power supply product lines is their P-DUKE encapsulated/enclosed type.

These power supplies have 15W to 450W AC/DC output power, lower power consumption, operate at over 50 degrees Celsius without de-rating.

Apart from this, these power supplies also have an over 5,000-meter operating altitude capacity. All these come with UL/EN/IEC 60335-1, 62368-1, and 60601-1 certifications.

Switching Power, Inc.

Address: Ronkonkoma, NY 11779

Switching Power, Inc. was launched in 1976. In over 45 years in the power supply manufacturing business, they offered custom-designed, standard-quality products for a wide array of electronic products.

With their standard building block topology, they can fulfill various program requirements.

On top of that, their low-risk strategy and high-level vertical integrations enabled them to deliver their products quickly. 

One of the most popular switching power supply product lines of the company is their GNX series.

These power supplies are usually low profile, have 90 VAC to 264 VAC power factor corrections, and 24 VDC to 48 VDC inputs.

There would be no extra cooling needed for environments that are within the 50-degrees Celcius temperature range. These also come in a wider power selection, ranging from 250 Watts to 1,500 Watts.

MEGA Electronics Inc.

Address: New Brunswick, NJ

MEGA Electronics Inc. was established in 1994, and since then, it has been one of the household names for power supplies.

In a short period, they established their presence in both the domestic and global markets.

They’re dedicated to being their customers’ one-stop solution for DC converters, power supplies, and power cords.

The power supplies they carry are available from 5W to 960W, carrying CEC, MEPS, FCC, S-mark, EK, SAA, PSE, GS, BS, CB, CCC, CE, CSA, UL, and E-mark.

These products are also compliant with WEE, REACH, and ROHS. Their AC and DC power supplies are also open-framed, din rail, desktop compatible, and wall plug-in variants.

Tripp Lite World Headquarters

Address: Pennsylvania 18902 USA

Tripp Lite World Headquarters was founded in 1982, operating as a privately held company engaged in distributing power supply products.

They partnered with such brands as Advanced Energy, Enedo, IPD, MEAN WELL, Protek Power, TRC Electronics, and XP Power to positively impact their customers with the best products in the market.

Their in-class AC/DC selection includes chassis power supplies that belong to the L-chassis, U-chassis, and enclosed categories.

These power supplies are meant for industrial applications and come in 5 to 24,000 Watts power selections. Their DIN rail power supplies are available in 5 to 999 Watts output power rating, 82 to 550 VAC input voltage, and 2 to 5-year warranty.


Address: Fremont, CA 94538

MEAN WELL, Mean Well group’s subsidiary, was founded in the early part of 1982. Because of their superior service and unparalleled product quality, they ranked 4th among the best power supply makers in the world.

Ninety-nine percent (99%) of the company sale turnovers come from their own brand’s power supplies. 

The company carries different power supplies — from AC/DC enclosed type, DIN rail, to the modular, onboard, PCB, and enclosed DC/DC types. The enclosed AC/DC types, for example, come in 200 to 2,500 watts.

They have a low and slim profile and free air convection, fanless design. These power supplies also come with built-in PFC functions and 100ms peak-load capability.

Cincon Electronics Co., Ltd.

Address: Ste 180 Ventura, CA 93003 USA

Cincon Electronics Co., Ltd. is a global leader in lighting, consumer, medical, industrial, computer, communications markets, and switch-mode power conversion supplies.

They design, develop, and manufacture their own RoHS-compliant and industry-standard LED power supplies, AC/DC power supplies, and DC/DC converters.

This company serves various industries, including consumer electronics, health, industrial automation, and more. 

Their existing product line includes more than 3,000 standard quality products like 15 Watts to 150 Watts LED power supplies, 5 Watts to 700 Watts AC/DC open frame power supplies, 5 Watts to 150 Watts AC adapters with single and multiple-output, and 1 Watt to 750 Watts single and multiple-output DC/DC converters.


These US-based switching power supply manufacturers and distributors appeal to the domestic and international markets for an excellent reason — they sell premium-quality products backed by an equally excellent Customer Service department.

So, the next time you look for switching power supply companies, consider the names on this list. With them, you’ll never worry about quality.