Exact Shipping Calculated When You Order

800-528-1417 / 480-464-2485

Serving Customers for Over 40 Years

sales@circuitspecialists.com

12 Volt Power Supply

Many different 12 volt power supplies available. 25 watts to 1000 watts. Switching and linear 12 volt power supplies. Enclosed and open frame styles. Click on the item of interest for specifications and quantity price breaks. We stock a broad selection of 12 volt power supplies. Our Power Supply 1 series (PS1-XXX-X) are UL and cUL approved. Circuit Specialists offers many single output power supplies. Also wall plug in types, multi output power supplies and bench type fixed output power supplies. These are our 12 volt power supplies. We have included multi output power supplies that include a 12 volt output as well as our bench models.

12 Volt 2.1 Amp Switching Power Supply

12V Power Supply - 2.1A Single Output

PS1-25W-12

Price:  $ 14.90

112 In Stock


12 Volt 12.5 Amp Single Output Power Supply

12 Volt Power Supply

PS1-150W-12

Price:  $ 42.88

45 In Stock


12V 58A Single Output Switching Power Supply

12V Power Supply - 58A Single Output

HF700W-S-12

Price:  $ 159.00

Available for back order.


12V 1.25A AC-DC Universal Power Supply

12V 1.25A AC-DC Universal Power Supply

3A-161WU12

Price:  $ 11.99

Available for back order.


5 Volt / 12 Volt Dual Output Switching Power Supply

5 Volt / 12 Volt Dual Output Switching Power Supply

HF100W-DF-A

Price:  $ 39.00

Available for back order.


2 Amp Multi-Output Power Supply

2 Amp Multi-Output Power Supply

PS-28

Price:  $ 16.96

Available for back order.


click here for our selection of 3.3 volt power supplies

click here for our selection of 5 volt power supplies

click here for our selection of 15 volt power supplies

clcik here for our selection of 24 volt power supplies

click here for our selection of 48 volt power supplies

click here for our selection of wall plug in power supplies

 

 

a good 12 volt power supply should provide a stable voltage output. This is usually attained by implementing a 12 volt voltage regulator integrated circuit into the design of the unit. When choosing a 12 volt power supply, make sure you select a model with enough current to easily handle your project. It is much better to have extra capacity than run the power supply at its maximum capability. If the power supply is rated in watts, then simply divide the output voltage into the number of watts to acquire the rating in amps. So, as 12 volt output power supply rated at 120 watts would provide 10 amps of power. 

Avoid using unregulated power supplies. For instance, a throtttle pack for an electric train set will probably not include any voltage regulation and probably will not have a filter capacitor. If you set the voltage output to 12 volts with this kind of power supply, you are likely going to supply a full wave Direct Current to your circuit and the peak voltage could be up to 18 volts which likely would damage components within your project or device being powered.

Plug in transformers sometimes referred to as wall warts are usually good choices to use for your power supply application. New switching designs are usually well filtered and regulated. Some older linear designs may be poorly filtered and not include any regulation. Adding your own regulator IC is a good way to use a surplus 12 volt power supply that is designed like this.