These wall power supplies (sometimes referred to as "wall warts") transform 120VAC power into unregulated DC power. The cord is approximately 6 feet in length and terminates in a 2.1mm inside diameter, 5.5mm outside diameter barrel connector with positive being in the center. These supplies are black in color.
Like all unregulated power supplies, the voltage with no load or light load will be higher than the rated voltage and will drop off as more load is applied. The output voltage will near the rated voltage as the load nears the rated current capacity.
Specification Note for WWD075-04-0
Winford Engineering rates the WWD075-04-0 as a 7.5 VDC, 0.4 A power supply. The manufacturer of the supply specifies a higher rating; the label on the product actually states 7.5 VDC at 0.8A. However, based on internal testing, Winford has derated this specification due to the fact that the mean supply voltage drops below 7.5 VDC at 0.8A load.
Winford Engineering's official rating means that this product can supply at least 7.5 VDC at 0.4A.
Pricing and Ordering
|Product #||Description||1+||10+||RoHS||Buy Now|
|WWD075-04-0||Wall Power Supply, Linear, 7.5VDC, 0.4A, 2.1mm I.D., Center Positive||$11.50||$11.10||Yes|
All of the above items are normally stocked. Please call us if you need to verify availability for a specific quantity, or for pricing at higher quantities. Please visit our ordering page for our ordering policies and a list of ordering methods.