Power Sources Unlimited is the authorized North American ISO 9001:2008 Registered distributor of AC/DC Power Supplies and DC/DC Converters from the world's leading manufacturers. Our strategic alliances allow us to support you:

• Select the RIGHT PRODUCT for your application
• Purchase at the LOWEST COST of ownership
• Develop PRICING & INVENTORY PROGRAMS tailored to your distinct needs
• Engineer MODIFIED STANDARD PRODUCTS for your specific requirement

Our website provides detailed specifications for all our products and allows you to purchase products on-line. Can't find what you're looking for? Call us at 800-966-PSUI (7784) or (508)384-1419 or email your request to info@psui.com .

Level V / ErP II Compliance Directive Effective April 27, 2011

Are You Ready?
Power Sources Is!

Click here to view our selection of Level V / ErP II ITE Products
Click here for our selection of Level V / ErP II Medical Products

5% Discount on Prototype Orders Through October 31, 2012.
Click here for more details.

Medical Power Solutions

Power Sources Unlimited has hundreds of AC/DC power supplies and DC/DC converters, all with EN60101-1 approvals for patient vicinity medical and dental applications. Click here to view our medically approved power conversion offerings .

Press Releases

• 48 Watt AC/DC Constant Current or Constant Voltage Dimmable LED Driver… Read more
• High Power Density DC/DC Converter Modules With Ultra-Wide 4:1 Input Voltage Range, Metal Case, Screw Terminal Connection… Read more
• 15W Medical Wall Mount Power Supply, EN60601-1 and UL60601-1 3rd Edition and Energy Star 2.0 Efficiency Level V… Read more
• 45 to 85 Watt AC/DC Power Supplies for Industrial and Medical Applications… Read more
• High Performance DIN-RAIL Power Supplies for Process Control and Industrial Applications… Read more
• New DC/DC Converters for Railway Applications… Read more
• Low Cost and Compact 60W Desktop Power Supply, Efficiency Level V… Read more
• 200 Watt AC-DC Single Output 1U Low Profile Medical & ITE Power Supply… Read more

More Press Releases

Technical Reference

See our Technical Reference Pages for technical notes, glossary of power conversion terms, industry requirements, organizations, useful equations, etc.

Warehouse Clearance

Overstocks on ac/dc power supplies and dc/dc converters offered at significant discounts! Hurry… limited quantities available! Take a look !