Power Supplies


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78 Products Found


SCC3733

37 x 33mm Monocrystalline Solar Cell

This epoxy-encapsulated monocrystalline solar cell offers 6.7V and 20mA in a 37x33mm package. Now updated with the Miller Engine circuit!

$8.00 USD

40412

2A Booster DC-DC Step-Up module Micro USB Input 2V-24V to 5/9/12/28V

2A Booster DC-DC Step-Up module Micro USB Input 2V-24V to 5/9/12/28V

$4.95 USD

40404

1.23V to 30V Step-Down Buck Converter

This adjustable buck converter takes a higher voltage and efficiently cuts it down between 1.23~30VDC, without wasting the power a linear regulator or resistor will.

$3.95 USD

47010

USB 1S LiPo Charger

Have some low-capacity 1S LiPo cells needing a convenient charger? Simple and cheap!

$3.50 USD

50484

CR2032 Coin Cell Holder - Sewable SMD

This is a coin cell holder for the common CR2032 type battery. The holder has a neat pop-in, pop-out feature that makes changing the battery easy.

$1.25 USD

BattR15

Lithium Polymer Battery - 2000mAh (Lipo)

These are very slim, extremely light weight batteries based on the new Polymer Lithium Ion chemistry.

$12.95 USD

50818

Sparkfun Lithium Polymer Basic Charger - Micro USB

Simple LiPo single-cell charger from Sparkfun, with a Micro-USB cable connector.

$8.50 USD

34011

Switching Power Supply 6VDC @ 500mA

Switching Power Supply - Perfect for Arduino Uno projects!

$11.95 USD

40414

200W Buck Module

When mini buck converters just won't do, 200W should manage it nicely.

$16.90 USD

18976

Adafruit USB LiIon/LiPoly charger - v1.2

Add a High Capacity Rechargeable power supply to your project easily!

$12.50 USD

40400

Buck Converter with LED display

DC-DC Converter Step Down Power Module LED Display Output 1.25V-37V

$6.95 USD

50879

Polymer Lithium Ion Battery - 1000mAh 7.4v

This high discharge 2-cell LiPo is a great way to power any R/C, robotic, or portable project. This is an excellent choice for anything that requires a small battery with a lot of punch.

$9.95 USD

50816

SparkFun LiPo Charger Basic - Mini-USB

Simple, no-brainer method to charge up a single cell Li-Ion / LiPo battery.

$7.95 USD

19066

PowerBoost 1000C - Rechargeable 5V Lipo USB Boost @ 1A

PowerBoost 1000 Charger - Rechargeable 5V Lipo USB Boost @ 1A - 1000C

$19.95 USD

50873

Lithium Ion Battery - 400mAh

3.7V 400mAh LiPoly battery with an excellent 2C discharge rate for small projects.

$7.95 USD

51017

Pololu 5V, 15A Step-Down Voltage Regulator D24V150F5

Need more power at 5V? These guys can lift 20 times their body weight!

$39.95 USD

51018

Pololu 7.5V, 15A Step-Down Voltage Regulator D24V150F7

Need more 7V5 power? These guys can lift 20 times their body weight!

$39.95 USD

HS11x11x5

Aluminum 11x11x5mm Heat Sink

Got a stepper driver running a bit too hot? Vreg going into thermal shutdown? Here's a heatsink, for small applications.

$0.75 USD

40422

USB DC Buck converter, 5.2V / 2.1A Out

5.1 ~ 5.2V USB Buck Regulator with 2.1A current capability.

$5.75 USD

40406

Buck Boost Converter

1.25 ~ 35V Buck/Boost Regulator with 3A current capability

$4.50 USD

34048

7.5V 2.5A power supply with 3M cable

7.2VDC, 2.5 Amp, switching power supply with a 3 meter cable to power those hard to reach projects.

$8.25 USD

SCPD

1/8" Square Solar Cell

These are small 1/8" square clear-epoxy encapsulated solar cells generating about 1/2 volt @ 1.9mA in sunlight.

$1.35 USD

SCC2433B-MSE

24 x 33mm Monocrystalline Solar Cell + MSE Circuit

This epoxy-encapsulated monocrystalline solar cell generates a nominal 4.5V / 18mA (sunlight) from a 24x33mm package. And has an integrated solarengine circuit board!

$6.50 USD

SCC3766

37 x 66mm Monocrystalline Solar Cell

This big brother of the SCC3733 is also an epoxy-encapsulated monocrystalline solar cell, but this one offers 8 volts and 44mA in a 37 x 66mm package!

$11.00 USD

BHold9V

9V Battery Snap Connector

Standard 9V battery connector.

$0.75 USD

BHoldAAA

2 x AAA Battery Holder (pin leads)

For builders of smaller robots, here's a holder for a pair of AAA batteries.

$2.75 USD

BHoldAA

2 x AA Battery Holder (wire leads)

Need to hold a pair of AA batteries?

$2.75 USD

BHoldAA 4 Cell

4 x AA Battery Holder

It's a nice quad-AA battery holder, with 6" leads.

$2.75 USD

18932

PowerBoost 1000 Basic - 5V USB Boost @ 1000mA from 1.8V+

This 4A capable PowerBoost 1000 can turn almost any battery voltage below 5.5V into a steady 5.2V to power your USB devices.

$14.95 USD

BattR4

3.6V / 170mA Pyramid Rechargeable Battery

This 3.6V 170mAh rechargeable Ni-Cad battery contains three cells in pyramid configuration.

$0.50 USD

34020

Breadboard Voltage Regulator Kit

The BVR Breadboard regulator kit makes it easy to add regulated, switchable power to your breadboard by using practically any 2.1mm DC adapter!

$5.95 USD

SCC2422

24 x 22mm Monocrystalline Solar Cell

This new solarcell is a bit smaller than the SCC2433, giving you solar power in a small and convenient package.

$4.45 USD

17010

Battery Holder 3-AA

This battery holder uses 3 AA cells to power your electronics, robotic or embedded project. You can do without, but MAN, when you need to hold 3AA cells, you'll need it!

$1.95 USD

17020

3-AA Battery Holder (w/ 15cm leads)

This unit is great for wiring up 3 AA batteries in series.

$2.25 USD

46225

LED Voltmeter Display 2.5-30VDC, Green

Small and self-powered, this green LED voltmeter is a handy monitoring module.

$3.95 USD

17440

Barrel Power Jack socket, 2.1mm Connection

2.1mm barrel power jack socket. For connecting barrels, I mean "power leads"!

$1.00 USD

BHoldAAA 1 Cell

1-Cell AAA Holder

Holder for single AAA size battery. 1.95" long x 0.50" x 0.50" high. Unbreakable black plastic. 6" wire leads.

$0.80 USD

BHoldAA-5cell-P

5 x AA Holder With 2.1mm Barrel Plug

It's a nice 5-AA battery holder, with 5" leads and a 2.1mm DC barrel plug.

$3.75 USD

15032

SparkFun Barrel Jack Power Switch - M-F

Instead of yanking and plugging 2.1" power connectors, toggle the power with this short inline power switch.

$2.50 USD

50515

SparkFun DC/DC Converter

Need a tidy DC-to-DC converter? This SparkFun breakout board offers 6 amperes of conversion, taking any DC voltage between 4.5-14VDC, and turning it to a selectable voltage between 0.59 and 5.5VDC.

$21.95 USD

33047

Switchable Voltage Divider

Switchable Voltage Divider is a voltage divider with switches. The switches can be used to control which resistors are used in the voltage divider.

$15.00 USD

50220

10W Step Down Adjustable Switching Regulator

The DE-SWADJ is the adjustable version of the "SW0XX" step-down voltage regulators. Using the same form-factor as a standard 78LMXX style regulator, it is a much better way to give regulated voltage to your project.

$17.45 USD

50222

25W Step Down Adjustable Switching Regulator

The DE-SWADJ 3 is a larger version of the DE-SWADJ adjustable step down voltage regulator, and is designed to be stronger, faster and better.

$25.00 USD

50200

3.3V 1A Switching Voltage Regulator

The Dimension Engineering 3.3V switching regulator is a tight & tidy voltage regulator that offers great performance at an excellent price. Great for extending battery life!

$17.35 USD

50210

5V 1A Switching Voltage Regulator

The Dimension Engineering 5V switching regulator is a tight & tidy voltage regulator that offers great performance at an excellent price. Great for extending battery life!

$17.45 USD

50225

AnyVolt Micro Universal DC-DC Converter

The AnyVolt DC-DC converter is small, powerful, and very useful for applications needing efficient voltage switching. The guys as Dimension Engineering know their stuff!

$19.99 USD

50230

LVBoost Micro Universal DC-DC Converter

Looking for a low, LOW voltage boost converter in a tidy package? Dimension Engineering's LVBoost is just the solution!

$19.95 USD

40408

DC-DC 2A Adjustable Boost Power Supply Converter Step Up Module 2-24v

This budget DC-DC boost converter cranks up input voltage from as low as 2V to an output as high as 28VDC

$3.95 USD

40410

Mini-360 DC-DC Buck converter

Super compact and capable, this DC-DC buck converter can knock down a voltage from 23V to as low as 1V with up to 95% efficiency.

$2.85 USD

40420

MicroUSB 1A LiPoly Charging Module

Excellent for building a portable project with a single LiPoly, and recharge it from microUSB!

$2.25 USD

34050

Adapter, 9VDC @ 1A

This Adapter, 9V @ 1A is a economical power transformer.

$5.45 USD

34140

Adapter, 12VDC @ 2.0A - US

12VDC, 2 Amp, power supply with center positive polarity for general project use.

$10.00 USD

19210

5V Boost Regulator

The Pololu 5V Boost Regulator NCP1402 is a very tiny source of 5V from supply voltages as low as 0.8V.

$5.75 USD

18938

PowerBoost 500 Shield

The Adafruit PowerBoost 500 Shield is a clever add-on for your MOBILE Arduino project. It's a power supply, charger, and battery pack all-in-one.

$19.95 USD

34161

Switching Power Adapter Brick 5VDC, 5A

Sometimes 5VDC is good. Sometimes backing it up with 5A is better! This brick power supply is ideal for powering addressable strip LEDs.

$16.95 USD

50227

AnyVolt 3 Universal DC-DC Converter

The Dimension Engineering AnyVolt 3 Universal DC-DC Converter is an adjustable step up/step down 3A switching regulator.

$54.99 USD

52229

9V Battery Holder w/ Switch & 2.1mm Plug

This is a 9V battery pack with on/off switch and a 2.1mm barrel plug, you get both parts and will have to solder them together. Use this to battery-power your Arduino (or other electronic projects).

$4.00 USD

52233

Adapter, 9VDC @ 1.0A

This is a really nice power supply. It's a switching DC supply so its small and light and efficient. It is thin so it fits in power strips without blocking other outlets.

$7.00 USD

BholdAA4-2x2

4xAA Battery holder (wire leads)

It's a nice quad-AA battery holder, with 6" leads.

$1.95 USD

BHoldAA-6cell

6AA Battery holder (wire leads)

A nice 6AA Battery holder in black plastic with wire leads.

$1.64 USD

50840

Li-Ion/Polymer Battery Charger/Balancer - 50W, 5A

The iMax B6 Balance Charger accurately balances and charges Lithium Polymer, LiFe (A123), NiCd and NiMH batteries. The B6 will balance charge LiPo/LiFe up to 6S and NiMH/NiCd up to 15S and shows individual cell voltage during charge with realtime updates throughout the charge cycle.

$32.95 USD

BattC2032

CR2032 3V Lithium Coincell Battery

Here's a common light weight 2032 coincell battery. Great for powering tiny robots, real time clocks and LED throwies!

$1.20 USD

BHold2032

CR2025/CR2032 Coincell Battery Holder

Here's a coin cell holder for mounting the most common types of coin cell batteries: CR2032 and CR2025. You could try other batteries but we're guessing you won't have much luck with 'AA's.

$0.49 USD

L7805CV

5V Positive Voltage Regulator

The ST Micro L7805CV is a 1.5A, 5V positive linear regulator. It is the stronger older brother of the 78M05 but ironically it is the same size and shape, go figure. It may look like your everyday 7805 but looks can be deceiving!

$0.40 USD

50870

PCA9306 Level Translator Breakout

Sometimes, voltages collide. When you have parts that expect/speak at different voltage levels, you have to build a mediator to smooth things out. This SparkFun BOB-10403 uses PCA9306 two-channel bidirectional voltage-level translator on a nice, small breakout board.

$6.95 USD

50880

Polymer Lithium Ion Battery - 2200mAh 7.4v

This high discharge LiPo is a great way to power any R/C, robotic, or portable project. This is an excellent choice for anything that requires a small battery with a lot of punch.

$15.95 USD

52242

2.1mm Socket/Jack Power Adapter set

It's a pain to solder up barrel jacks and plugs, so these screw-terminal based versions are very popular for repurposing DC power supplies to other applications!

$3.50 USD

52244

2.5mm Plug/Jack Power Adapter set

It's a pain to solder up barrel jacks and sockets, so these screw-terminal based versions are very popular for repurposing DC power supplies to other applications!

$3.50 USD

19030

Compact Selectable Switching Power Supply 3-12VDC

What a handy power adapter - 100~240VAC input, and it outputs up to 10 watts, with a selectable voltage from 3 to 12VDC. Complete with a variety of interface plugs!

$14.95 USD

34017

5V 10A Switching Power Supply

5V is a common voltage but there isn't much out there in terms of a high current 5V source. When you are in need of a 5V supply with immense strength; we strongly ask you to consider this unit.

$28.75 USD

17008

2 x CR2032 - Coin Cell Battery Holder

2x CR2032 battery holder with 12" of wire.

$1.95 USD

17012

3 x AAA Battery Holder with Cover and Switch

Give your project a sleek look with this 3 x AAA battery pack with a built in on-off switch and stylish lid.

$1.95 USD

52252

DC Jack Socket Panel-Mount Connector 5.5x 2.1mm - 3 pin

Use this panel mount DC jack to add a little polish to your next project.

$2.95 USD

52254

DC Jack Socket Panel-Mount Connector 5.5x 2.5mm - 2 pin

Use this 2 pin panel mount DC jack to add a little polish to your next project.

$2.55 USD

52248

2.1mm Jack Power Adapter

It's a pain to solder up barrel jacks, so these screw-terminal based versions are very popular for repurposing DC power supplies to other applications!

$2.95 USD

52250

5.5-2.1mm DC Power Jack - Female

A 2.1mm Female barrel jack with 10" of red and black insulated wire attached.

$2.00 USD

50891

3.7V 110mAh LiPoly battery for E-Textiles

What makes this battery special for E-textiles? Built-in current limiting for safety.

$6.95 USD

34047

5.2V 2.1A microUSB power supply with 2M cable

With a 2 meter (6.6') micro-USB connector, this power supply is ideal for powering single-board computers like the Raspberry Pi.

$8.00 USD

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