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Power / Batteries

Batteries
Battery Holders / Adapter
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Power Supply / Voltage Regulator
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-31%
In-line power switch for 2.1mm barrel jack
$2.50 $3.60  
10 pc(s)
Add a power switch to any project simply by plugging this between the power supply. This is the most useful thing you never knew you needed! You'll want to pick up a bunch for your electronic projects. Comes with a 5.5/2.1mm barrel jack on one end an a plug on the other. In between is an...
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12V, 1A Step-Down Voltage Regulator D24V10F12
$14.50  
4 pc(s)
This D24V10F5 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 12 V while allowing for a maximum output current of 1 A. This regulator offers typical efficiencies between 85% and 90% and has a very low dropout, so it can be used with input...
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8 x AA Battery Holder, Back-to-Back
$1.50  
2 pc(s)
This is a simple Battery holder for eight AA cells arranged as two back-to-back four-cell holders.
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-50%
3 x AAA Battery Holder with Cover and Switch
$1.00 $2.00  
13 pc(s)
Enclosed battery holder for three AA cells. This holder features a lid that slides over the batteries and snaps into place to fully enclose the cells. It also features a switch that lets you open and close the electrical connection between the batteries and the holder's leads. The leads are...
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3.3V, 2.5A Step-Down Voltage Regulator D24V25F3
$35.00  
10 pc(s)
This D24V25F3 synchronous buck voltage regulator takes an input voltage of up to 38 V and efficiently reduces it to 3.3 V. The board measures only 0.7″ × 0.7″ yet delivers a typical continuous output current of up to 2.5 A and features reverse voltage protection. Typical efficiencies of 80%...
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6 x AA Battery Holder
$1.40  
19 pc(s)
Battery holder for six AA batteries, terminated with ~150mm leads
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-20%
2 x AAA Battery Holder
$0.80 $1.00  
7 pc(s)
Battery holder for two AAA batteries, terminated with ~150mm leads
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Breadboard Power Supply 5V/3.3V
$2.95  
5 pc(s)
This Breadboard Power Supply Module plugs directly into a solderless breadboard and provides both 3.3V and 5V power directly to the breadboard power rails. The board accepts 7 to 12V DC input via the barrel jack or 5V via the mini-B USB port. It provides two regulated, fuse protected outputs...
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5 x AA Battery Holder
$1.30  
21 pc(s)
Battery holder for five AA batteries, terminated with ~150mm leads
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-50%
Solar Panel - 18V 2.5W
$18.75 $37.50  
2 pc(s)
Need a clean energy source to power you project? Check out this high quality, high output solar panel. Each panel features high efficient polycrystalline cells mounted onto a fibreglass PCB and covered with epoxy resin which protect the cells without reducing efficiency. A weatherproof plastic...
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-15%
MOSFET Power Controller
$12.50 $14.75  
2 pc(s)
MOSFETs are awesome. They're like a switch that you flip electronically! This SparkFun MOSFET Power Controller makes it easy to switch a battery supply on and off using your favorite microcontroller. The board also has sewable pads so you can use it in e-textile projects that need more juice....
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3.3V, 1A Step-Down Voltage Regulator D24V10F3
$14.50  
5 pc(s)
This D24V10F3 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 3.3V while allowing for a maximum output current of 1 A. This regulator offers typical efficiencies between 80% and 90% and has a very low dropout, so it can be used with input...
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