1.800.966.PSUI (7784)
508.384.1419
(outside the U.S.)
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Power Sources Unlimited is
ISO 9001:2008 Registered

Welcome to Power Sources Unlimited

Power Sources Unlimited, Inc. is a premier ISO 9001: 2008 supplier in North America for AC-DC Power Supplies, DC-DC Converters, DC UPS, Industrial Power, Medical Power, LED Power, Green Power and Telecom/Wireless Power for small, medium and large quantity OEM customers. Our commitment to selling high quality and synergistic power conversion products and dedication to the customer have positioned us as the supplier of choice in North America for NEW design requirements.
Power Sources Unlimited

New Product Showcase


Traco TSR Series Cotek AE-1500 & AE-3000 Series Absopulse PSI300 Series Cincon CFM150M Series
Traco TSR Series IPD SRW/SRP-100 Series Unipower INVO Series Cincon CFM150M Series
  • High efficiency up to 95%
  • Suitable for positive and negative output circuits
  • Pin Compatible to LM78XX
  • Compact SMD and SIP package
  • Operating temperature range -40°C to 85°C
  • No heat-sink required
  • Over-temperature and short-circuit protection
  • Excellent line/load regulation
  • Universal AC Input / Full Range
  • Programmable output voltage (0% ~ 105%)
  • Programmable output current (0% ~ 105%)
  • Forced current sharing at parallel operation
  • Constant current limit
  • Selectable +5V / 0.5A or +9V / 0.3A auxiliary output
  • DC Input 127 - 370VDC
  • Learn more about the AE-3000 Series
  • Full encapsulation ensures immunity to high shock & vibration, moisture and airborne contaminants
  • Input: 24V, 48V, 110V or 125Vdc or custom
  • Output: 115Vac continuous at 60Hz or 400Hz; or 230Vac continuous at 50Hz or custom
  • -40°C to +70°C operating temperature range without derating (optional -55°C to +85°C)
  • Conduction cooling via base plate to customer chassis or heat-sink
  • Complies with C22.2 No. 107.1 - 01, UL 458, EN60950-1 and equivalent
  • Universal input range 90 ~ 264VAC
  • Meets EN60601-1 3rd edition and EN55011 class B
  • 3″ x 5″ compact size; Less than 1U high 1.05″
  • Industry standard pin out
  • Active PFC meets EN61000-3-2
  • High efficiency up to 92%
  • Meets CISPR/FCC class B

PSUI Welcomes NuTec Marketing, Inc.


Power Sources Unlimited, Inc (PSUI) is pleased to announce the addition of NuTec Marketing, Inc. to our expanding North American sales representative network. Headquartered in Dunnellon, Florida, NuTec Marketing Inc. will be servicing PSUI’s customers in the Florida and Georgia areas. Click here to view NuTec Marketing's contact information or visit them at www.nutecmarketing.com


PSUI Partners with Tri-Mag, LLC.

Tri-Mag, LLC.


Power Sources Unlimited, Inc continues to expand it’s portfolio of highly-reliable, configurable and cost-effective power solutions with the announcement to partner with Tri-Mag, LLC. Tri-Mag has been manufacturing quality power conversion products, from EMI filters to power supplies since 1980. Offering a wide selection of standard power electronics and power systems along with custom design services to ensure we have the solution to meet the requirements of your application.
Click here to view our Tri-Mag line card.


PSUI Partners with ABSOPULSE Electronics Ltd.

ABSOPLUSE Electronics Ltd.


Power Sources Unlimited, Inc is pleased to announce that we have partnered with ABSOPULSE Electronics Ltd. With this partnership Power Sources continues to grow it’s portfolio of highly-reliable, configurable and cost-effective power solutions. ABSOPULSE Electronics Ltd. specializes in the design, development and manufacture of high performance switch-mode power supplies for rugged and extreme environments.
Click here to view our ASBOPULSE linecard.


UL/EN 60601-1 3rd Edition Approved Medical Power Solutions

Power Sources Unlimited Medical Application

Power Sources Unlimited, Inc. carries a vast selection of AC-DC power supplies and DC-DC converters, all with UL/EN 60101-1 approvals for patient vicinity medical and dental applications. The latest version is UL/EN 60601-1 3rd Edition which has been adapted in the major regions of the world and worldwide compliance will be in place by June 2013. Our line of power supplies are designed by skilled engineers to achieve the required low leakage current and reinforced isolation specifications required for medical applications, Click here to view our medically approved power conversion offerings.


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Power Sources Unlimited, Inc.
is a member of PSMA