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Pololu 9V, 15A Step-Down Voltage Regulator D24V150F9
$
85.95
In-Stock:
3 pc(s)
This synchronous switching step-down (or buck) regulator takes an input voltage of up to 40 V and efficiently reduces it to 9V with an available output current of around 15 A. Typical efficiencies of 80% to 95% along with its high current capabilities make this regulator well suited for...
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4 x AA Battery Holder with On/Off Switch, 3-Pin JST
$
2.80
In-Stock:
5 pc(s)
Enclosed battery holder for four AA cells. This holder features a lid that slides over the batteries and snaps into place to fully enclose the battery. 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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-33%
8 x AA Battery Holder - Cube End-to-End
$
1.00
$
1.50
In-Stock:
17 pc(s)
Battery holder for eight AA batteries with ~140mm leads, cube end-to-end configuration.
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9V Battery Holder with On/Off Switch, 3-Pin JST
$
2.50
In-Stock:
5 pc(s)
Enclosed battery holder for 9V battery. This holder features a lid that slides over the batteries and snaps into place to fully enclose the battery. 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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Beefcake Relay Control Kit (Ver. 2.0)
$
12.50
In-Stock:
1 pc(s)
Your 5V system can wield great power with this big, beefy relay board. How does 10A on the NC contacts and 20A on the NO contacts at 220VAC sound? The SparkFun Beefcake Relay Control Kit contains all the parts you need to get your high-power load under control. Only minimal assembly is...
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Pololu 5V, 15A Step-Down Voltage Regulator D24V150F5
$
130.00
In-Stock:
1 pc(s)
This synchronous switching step-down (or buck) regulator takes an input voltage of up to 40 V and efficiently reduces it to 5 V with an available output current of around 15 A. Typical efficiencies of 80% to 95% along with its high current capabilities make this regulator well suited for...
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-50%
3 x AAA Battery Holder
$
0.50
$
1.00
In-Stock:
50 pc(s)
Battery holder for three AAA batteries, terminated with ~150mm leads
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Hand Crank Generator
$
14.95
Out-of-stock
This hand-held crank generator produces up to 15 volts of DC electricity. The integrated PCB includes a full bridge rectifier to provide the same output polarity for either direction the hand crank is turning. In addition, other devices can be easily connected to the screw terminal.
Out-of-stock
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DC Barrel Jack Plug - Female
$
0.50
In-Stock:
39 pc(s)
This female barrel jack plug is great for adding a common connector to the end of wires. This jack is compatible with 5.5x2.1mm barrel connectors. The outer shell unscrews to reveal solder terminals and a crimp strain relief. The outer shell has strain relief as well.
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-30%
Relay SPDT Sealed - 3V
$
0.95
$
1.35
In-Stock:
61 pc(s)
These are general purpose, Single Pole - Double Throw (SPDT) sealed relays. Use them to switch high voltage, and/or high current devices. This relay's coil has switch voltage of 3V at 120mA. The contacts are rated 10A at 120VAC, 10A at 30VDC. Features : 3V DC SPDT...
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Round Shape 2 x CR2032 Coin Cell Battery Holder - 6V output with On/Off switch
$
0.65
In-Stock:
7 pc(s)
This tiny coin cell battery holder is ideal for small portable or wearable projects. It holds two 20mm CR2032 coin cells in series to generate 6V nominal. CR2032 tends to have about 220mAh capacity so this holder would give you 6V @ 220mAh with two cells.
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4 x 18650 Battery Holder
$
3.00
In-Stock:
7 pc(s)
Battery holder for four 18650 Lithium Ion batteries, terminated with ~150mm leads
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-46%
1 x AA Battery Holder with Cover and Switch
$
1.00
$
1.85
In-Stock:
19 pc(s)
This 1xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removable sliding cover and an ON/OFF switch which can be used to control power to your project. The leads are about 150mm, and the last 5mm of them are tinned. Dimensions: 69 x 26...
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4 x AA Battery Holder with Switch & Barrel Jack
$
3.50
In-Stock:
8 pc(s)
This 4xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removable sliding cover and an ON/OFF switch which can be used to control power to your project. The cable is terminated with a standard 5.5x2.1mm, center positive barrel jack...
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-8%
SparkFun Sunny Buddy - MPPT Solar Charger
$
37.50
$
40.55
In-Stock:
1 pc(s)
This is the Sunny Buddy, a maximum power point tracking (MPPT) solar charger for single-cell LiPo batteries. This MPPT solar charger provide you with the ability to get the most possible power out of your solar panel or other photovoltaic device and into a rechargable LiPo battery. Set-up is...
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-9%
LiPo Charger Plus - USB Type-C
$
15.00
$
16.50
In-Stock:
1 pc(s)
The SparkFun LiPo Charger Plus is the souped-up power option in the SparkFun line of single-cell lithium polymer (LiPo) battery chargers. With this iteration, we've changed the input charge connector to USB-C and provided charge rate selection as well as optional thermal protection. Charge,...
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-20%
4 x AAA Battery Holder with Cover and Switch
$
2.00
$
2.50
In-Stock:
13 pc(s)
Enclosed battery holder for four AAA 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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Sunflower Solar Power Manager 5V
$
14.50
In-Stock:
2 pc(s)
Solar Power Manager 5V is a small power and high-efficiency solar power management module designed for 5V solar panel. It features as MPPT (Maximum Power Point Tracking) function, maximizing the efficiency of the solar panel. Apart from serving as a solar charger, the module can provide up to...
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Opto-Isolated Relay Module - 16 Channels (5V)
$
22.99
In-Stock:
1 pc(s)
This 16 channels Relay Module can be used to control the lighting, electrical and other equipments through the digital IO port. The digital input circuit is optically isolated from the relay, so your controller is protected from voltage spikes and surges. The module is controlled with 5V...
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-15%
MOSFET Power Controller
$
12.50
$
14.75
In-Stock:
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
In-Stock:
4 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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-50%
Solar Panel - 18V 2.5W
$
18.75
$
37.50
In-Stock:
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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5 x AA Battery Holder
$
1.30
In-Stock:
21 pc(s)
Battery holder for five AA batteries, terminated with ~150mm leads
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2 x AAA Battery Holder w/JST Connector
$
0.50
In-Stock:
400 pc(s)
This 2xAAA Battery Holder with JST Connector is compatible with the BBC micro:bit. Supplied with ~150mm colour coded power leads and a JST connector at the end, this battery holder is light and can be attached to the back of BBC micro:bit cases. This battery holder features a lid that slides...
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-20%
2 x AAA Battery Holder
$
0.80
$
1.00
In-Stock:
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
In-Stock:
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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6 x AA Battery Holder
$
1.40
In-Stock:
18 pc(s)
Battery holder for six AA batteries, terminated with ~150mm leads
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3.3V, 2.5A Step-Down Voltage Regulator D24V25F3
$
35.00
In-Stock:
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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-50%
3 x AAA Battery Holder with Cover and Switch
$
1.00
$
2.00
In-Stock:
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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8 x AA Battery Holder, Back-to-Back
$
1.50
In-Stock:
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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-31%
In-line power switch for 2.1mm barrel jack
$
2.50
$
3.60
In-Stock:
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
In-Stock:
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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Non-Isolated Single Relay Module For 3V Controller
$
6.50
In-Stock:
1 pc(s)
This single channel Relay Module is specially designed for low-voltage devices and works well with 3.3V power supply. It can be used to control the lighting, electrical and other equipments through the digital IO port. The module comes with on-board back EMF protection to eliminate the...
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10A Relay Module For 3.3V And 5V Controller
$
15.50
In-Stock:
2 pc(s)
This 10A Relay Module is a little different to the other relays in our store - not only is it compatible with 5V Arduino boards, but also with Raspberry Pi, BBB (BeagleBoard Black), mbed, Intel Joule, Arduino 101 and other 3.3V devices. It is specially designed for low-voltage devices and...
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6 x AA Battery Holder with Switch and Cover
$
2.90
In-Stock:
15 pc(s)
Enclosed battery holder for six 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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−
+
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DC Barrel Jack Plug - Male
$
0.50
In-Stock:
52 pc(s)
This barrel jack plug is great for adding a common connector to the end of our wires. This jack is compatible with 5.5mm barrel jacks that have a 2.1mm center pole diameter. The outer shell unscrews to reveal solder terminals and a crimp strain relief. The outer shell has strain relief as well.
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-50%
3 x AA Battery Holder
$
0.50
$
1.00
In-Stock:
82 pc(s)
Battery holder for three AA batteries, terminated with ~150mm leads
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−
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8 x AA Battery Holder with On/Off Switch and Cover
$
3.80
In-Stock:
2 pc(s)
Enclosed battery holder for eight AA batteries. This holder features a lid that slides over the batteries and snaps into place to fully enclose them. 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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−
+
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DC Barrel Power Jack/Connector
$
0.50
In-Stock:
6 pc(s)
DC power jack / connector. This is a common barrel-type power jack for DC wall supplies. These are compatible with our DC wall supplies and have a 5.5mm jack, with a 2.1mm center pole diameter.
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-50%
3 x AA Battery Holder with Switch and Cover
$
1.00
$
2.00
In-Stock:
1 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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−
+
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2 x AAA Battery Holder with JST Connector
$
1.40
In-Stock:
1 pc(s)
This 2xAAA Battery Cage with JST connector is compatible with the BBC micro:bit. Supplied with colour coded power leads and a JST connector at the end, this battery cage is light and features a M3 mounting hole in the centre so it can be attached to the back of BBC micro:bit cases. The JST...
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1 x AA Battery Holder
$
0.80
In-Stock:
3 pc(s)
Battery holder for single AA batteries, terminated with ~150mm leads
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9V Battery Holder
$
0.80
In-Stock:
4 pc(s)
This 9V battery holder allows your battery to snap in tight and holds it in place, which is great in situations where you don't want the battery just hanging. It also has three mounting holes so you can attach it securely to your enclosure. It is terminated with a 150mm leads
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3.3V Step-Up/Step-Down Voltage Regulator S7V8F3
$
18.50
In-Stock:
3 pc(s)
The Pololu step-up/step-down voltage regulator S7V8F3 is a switching regulator (also called a switched-mode power supply (SMPS) or DC-to-DC converter) that uses a buck-boost topology. It takes an input voltage from 2.7 V to 11.8 V and increases or decreases the voltage to a fixed 3.3 V output...
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9V Battery Snap - Heavy Duty
$
0.80
In-Stock:
50 pc(s)
9V snap connector wth hard shell that is built stronger to last longer. Comes with color-coded wire leads. Great for replacements or projects. Length: ~ 15cm
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2 x AAA Battery Holder w/Switch and JST Connector
$
2.25
In-Stock:
10 pc(s)
This 2xAAA Battery Holder with Switch and JST Connector is compatible with the BBC micro:bit. Supplied with ~150mm colour coded power leads and a JST connector at the end, this battery holder is light and can be attached to the back of BBC micro:bit cases. This battery holder features a lid...
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−
+
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-17%
4 x AA Battery Holder
$
1.00
$
1.20
In-Stock:
23 pc(s)
Battery holder for four AA batteries, terminated with ~150mm leads
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-20%
2 x AA Battery Holder
$
0.80
$
1.00
Out-of-stock
Battery holder for two AA batteries, terminated with ~150mm leads
Out-of-stock
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-10%
9V Battery Holder with On/Off Switch
$
1.80
$
2.00
In-Stock:
6 pc(s)
Enclosed battery holder for 9V battery. This holder features a lid that slides over the batteries and snaps into place to fully enclose the battery. 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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2 x AAA Battery Holder with Cover and Switch
$
1.90
In-Stock:
7 pc(s)
Enclosed battery holder for two 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 about...
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−
+
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Opto-Isolated Relay Module - 2 Channels (5V)
$
3.99
Out-of-stock
This two channels Relay Module can be used to control the lighting, electrical and other equipments through the digital IO port. The digital input circuit is optically isolated from the relay, so your controller is protected from voltage spikes and surges. The module is controlled with 5V...
Out-of-stock
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Single Channel Relay Module (5V)
$
1.99
Out-of-stock
This Single Relay Module can be used to control the lighting, electrical and other equipments through the digital IO port. Applications include solenoid valves, lamps, motors and other high current or high voltage devices. The modules are controlled with 5V signal and they are pre-soldered. A...
Out-of-stock
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9V Battery Holder with Switch & Barrel Jack
$
2.80
Out-of-stock
This is a 9V battery pack with on/off switch and terminated with a standard 5.5x2.1mm, center-positive barrel jack. Use this to battery-power your Arduino or other electronic projects. Battery & screw not included. Dimensions : 68mm x 33mm x 21mm Lead length: 12cm...
Out-of-stock
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9V Battery Snap - Standard
$
0.50
In-Stock:
94 pc(s)
Classis 9V snap connectors with color-coded wire leads. Great for replacements or projects. Length: ~ 15cm
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SWADJHV High Voltage Step Down Adjustable Switching Regulator
$
42.50
In-Stock:
4 pc(s)
The SWADJHV is the a high-voltage edition of our popular DE-SWADJ adjustable switching reulators. It is designed to accept an input voltage ranging from 5-60V, allowing you to power a variety of applications from extremely high-voltage sources. The SWADJHV is pin-compatible with the common 78XX...
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DE-SWADJ3 Step Down Adjustable Switching Regulator 25W
$
42.00
In-Stock:
6 pc(s)
The DE-SWADJ 3 is a larger version of our DE-SWADJ adjustable step down voltage regulator. Previously it was necessary to put multiple DE-SWADJ units in parallel to achieve ratings over 1A, which was bulky, expensive and carried with it a considerable increase in dropout voltage. The...
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DE-SWADJ Step Down Adjustable Switching Regulator - 10W
$
24.50
In-Stock:
2 pc(s)
The DE-SWADJ is the adjustable version of our SW0XX step down voltage regulators. It is designed to be the easiest possible way to add an adjustable voltage source to a new or existing project with all the efficiency benefits of switch-mode power. The DE-SWADJ is pin-compatible with the...
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2 x AA Battery Holder with Cover and Switch
$
1.90
In-Stock:
19 pc(s)
This 2xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removable, sliding cover, which is secured with a small phillips head screw. Another bonus is the ON/OFF switch which can be used to control power to your project. The leads are about...
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−
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DC Barrel Jack Adapter - Male
$
2.50
In-Stock:
34 pc(s)
This adapter allows you to connect a barrel jack connector to bare wires. One end has screw terminals and the other has a 5.5x2.1mm, center-positive male barrel jack. If you need to connect bare wires to a barrel jack on an Arduino or a development board, this might be the simple solution.
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Barrel Jack Adapter - USB to 5.5mm
$
2.95
In-Stock:
2 pc(s)
This is a simple cable that adapts from a USB port to a 5.5x2.1mm barrel connector, center positive. This cable allows the user to use a USB port on a computer, laptop, or on our cigarette power supply to provide our development boards with 5V. The USB specification limits current...
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4 x AA Battery Holder with Cover and Switch
$
2.50
In-Stock:
2 pc(s)
Enclosed battery holder for four AA cells. This holder features a lid that slides over the batteries and snaps into place to fully enclose the battery. 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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−
+
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5V Step-Up/Step-Down Voltage Regulator S7V7F5
$
25.50
In-Stock:
3 pc(s)
The Pololu step-up/step-down voltage regulator S7V7F5 is a switching regulator (also called a switched-mode power supply (SMPS) or DC-to-DC converter) that uses a buck-boost topology. It takes an input voltage from 2.7 V to 11.8 V and increases or decreases the voltage to a fixed 5 V output...
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4 x AA Battery Holder with Barrel Jack
$
1.20
$
1.50
In-Stock:
36 pc(s)
This is a simple 4 cell AA battery holder. The 5 inch cable is terminated with a standard 5.5x2.1mm, center positive barrel jack connector. The connector mates with the barrel jack on the Arduino Uno (among a number of other products) allowing you to easily make your project...
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