Contributors:
JordanDee Connections
How Do I Connect My Battery or Power Supply to My Circuit?
There are many ways to actually connect a power supply to your project.
Common ways to connect a power to your circuit
Variable benchtop power supplies commonly connect to circuits using banana jacks or wires directly. These are also similar to the connectors found on the multimeter probe cables.
In stock
CAB-00506
These are various leaded cables for attaching to multimeters, power supplies, oscilloscopes, function generators, etc. Cables…
7
In stock
CAB-00507
These are various leaded cables for attaching to multimeters, power supplies, oscilloscopes, function generators, etc. Cables…
2
In stock
CAB-00508
These are various leaded cables for attaching to multimeters, power supplies, oscilloscopes, function generators, etc. High q…
1
In stock
CAB-00509
These are various leaded cables for attaching to multimeters, power supplies, oscilloscopes, function generators, etc. Cables…
3
Many projects are built on a breadboard first with wires as a prototype, before they become a final product. There are numerous ways to power your breadboard circuit, many of them involving the same connectors mentioned here.
In stock
PRT-12002
This is your tried and true white solderless breadboard. It has 2 power buses, 10 columns, and 30 rows - a total of 400 tie i…
48
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PRT-11367
An assortment of colored wires: you know it's a beautiful thing. Six different colors of solid core wire in a cardboard dispe…
38
In stock
PRT-08431
This is a SparkFun exclusive! These are 155mm long, 26 AWG jumpers with male connectors on both ends. Use these to jumper fro…
2
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PRT-12044
This red Mini Breadboard is a great way to prototype your small projects! With 170 tie points there's just enough room to bui…
Once a project is past the prototyping phase, it will usually end up on a PCB. If you plan on making the circuit once or twice, one can transfer the circuit to a prototyping board and wire the circuit up manually to secure project. If you plan on making the circuit more than a few times, you may want to look into designing the circuit with a CAD software (i.e. Eagle) to save time wiring the project or if you plan on shrinking the size of the overall circuit.
In stock
PRT-12070
This is the SparkFun Solderable Breadboard. A bare PCB that is the exact size as our regular breadboard with the same connect…
20
In stock
DEV-13820
The SparkFun ProtoShield Kit lets you customize your own Arduino shield using whatever circuit you can come up with and then …
3
Out of stock
PRT-13268
Sometimes it's nice to have a protoboard that's super long and skinny, super small, or just a bunch of holes. The SparkFun Sn…
21
21 available
DEV-13317
The SparkFun Big Red Box Proto Board is a large, custom made PCB that has been specifically designed to be used with and inst…
1
One of the most common power connectors used on a finished PCB, in both consumer electronics and hobby electronics alike, is the barrel connector, also know as a barrel jack. These can vary in size, but they all function the same and provide a simply, reliable way to power your project. Depending on your design, you can also pull power from a computer or wall adapter's USB port.
In stock
PRT-10288
This adapter allows you to connect a barrel jack connector to bare wires. One end has screw terminals and the other has a 5.5…
1
In stock
BOB-15100
The SparkFun USB-C Breakout supplies up to 3 times the power as previous USB board while breaking out each pin on the connect…
6
Only 2 left!
BOB-12035
This simple board breaks out a micro-B USB connector's VCC, GND, ID, D- and D+ pins to a 0.1" pitch header. If you want to ad…
12
In stock
PRT-10811
This DC power jack/connector is just like the other one that we carry except that it's terminated with breadboard-friendly pi…
8
Batteries are generally held in a case that holds the batteries and connects the the circuit via wires or a barrel jack. Some batteries like Lithium Polymer Ion batteries often use a JST connector. Here are a few from our catalog.
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PRT-10512
This 9V battery holder allows your battery to snap in tight and holds it in place, which is great in situations where you don…
3
In stock
PRT-09547
This 2xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removable, slidi…
In stock
PRT-12618
This is a simple coin cell battery holder that can enclose two CR2032 batteries inside itself, and safely kept closed via two…
1
In stock
PRT-09749
This is a 2-pin, through-hole PH series JST connector. The pins are spaced by 2mm.
We really like the solid locking feeling…
2
To learn more about different power connectors, please see our connectors tutorial.
Connector Basics
Connectors are a major source of confusion for people just beginning electronics. The number of different options, terms, and names of connectors can make selecting one, or finding the one you need, daunting. This article will help you get a jump on the world of connectors.
