Power Supplies

Still using a big, bulky, traditional power adapter to charge your lithium battery? DFRobot provides you with a compact and efficient 7.4V lithi...

Simple 4 Cell AA Battery holder with 5" tinned leads, square configuration. SPECIFICATIONS Battery Quantity: 4 Battery typ...

Buy in Bulk and Save.* Contains 40 mercury & cadmium free AAA Alkaline batteries.* Great to use on every day household appliances such as remo...

The holders are moulded in Delryn with corrosive resistant nickel plated springs and studs. - We can supply OEM quantities of holders...

Ever go to a diner and they give you a bottle of ketchup and it says "Extra Fancy" and you're thinking to yourself "what makes this ketchup 'extra ...

Push once to turn on, push again to turn off! This clicky switch makes a great power switch or mode toggler. We like this switch because it's bread...

Ah the venerable 7805, who amongst us has not used this popular linear regulator? This big chunky regulator will help you get your 7-35V battery...

Trinket may be small, but do not be fooled by its size! It's a tiny microcontroller board, built around the Atmel ATtiny85, a little chip with a lo...

This 20W adjustable DC-DC boost converter with a digital display is based on the professional boost chip and supports 3~32V power input, 5~35V o...

Lithium ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light and powerful. The output ranges from 4.2V when completely charg...

This 4xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removable, sliding cover, which is sec...

Electrolytic decoupling capacitors 100uF/25V. These capacitors are great transient/surge suppressors. Attach one between the power and ground of yo...

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...

This vacuum pump really sucks! This pump operates at 12V and has enough suction for most small projects. We even used one to make our very own u...

 INTRODUCTIONSimple 4 Cell AA Battery holder with 5" tinned leads, square configuration. This holder features a sliding, removable cover as well as...

The SparkFun 5V BabyBuck Regulator Breakout features the AP63357 from Diodes Inc., a 3.5A synchronous buck converter with a wide input voltage rang...

This battery holder can hold four AA batteries and comes with a DC 2.1 jack that offers a simpler and more secure wire connection. It is RoHS compl...

This is a DC charging and discharging integrated module, with 5V normally open output, which is not affected by load access and has a maximum load ...

If you need to add a panel-mount connection for DC power, but don't have the time or ability to cut a custom oval or square hole, this Round Pan...

These panels come to us from Voltaic Systems, makers of fine solar-powered bags and packs. These are waterproof, scratch-resistant, and UV resistan...

Solenoids are basically electromagnets: they are made of a big coil of copper wire with an armature (a slug of metal) in the middle. When the coil ...

SOLAR POWER MANAGER Compatible with 6V~24V solar panels, embedded 10000mAh Li-po battery Recharged From Solar Panel, Or TYPE-C Power Adapter5V/3...