SLVR-1 Power Supply





$8.50 ea.

It's a handy power-breakout, featuring barrel-jack input, and multiple 5V regulated, unregulated, and USB-compatible power taps.

Description [Hide]

It looks like a generic power board, and it is. And it's surprisingly useful one at that.

Feed it 8~20VDC in, and then get convenient 5V access through 8-pairs of +/- pins, and a USB jack configured with bias resistors for "iDevice" charging. And there's taps for 4 pairs of unregulated (Vsource) power. With a power switch.

Besides being a handy project power-supply, we've successfully used it as a remote power center for a Synapse Radio / Star Controller demonstration board, which it was ideal for. We pushed 12V into the power board, sent the regulated 5V to the logic controller board, and passed the 12V directly to the LEDs, all from the same board. AND we still had the USB A power jack for powering an Arduino demonstration.


  • 1A LM7805 regulator with internal short-circuit current limit, and reverse installation protection
  • AC/DC input power supply compatible (polarity insensitive inputs due to the included diode bridge rectifier)
  • Multiple Power Inputs via:
    • 2.1mm Barrel Jack
    • .200" Holes ideal for terminal blocks, or large gauge wire soldering
    • 2x4 .100" header for either male or female header pins.
  • Multiple output Outputs via:
    • 1 x .200" Hole pair, ideal for terminal blocks, or large gauge wire soldering
    • 2x8 .100" Header for either male or female header pins to be used. Lots of connection points!
  • Power switch - turn the power supply off for battery powered projects
  • LED power indicator
  • USB A socket - Power your USB devices (such as your Arduino) directly from the power supply with a standard USB cable.
  • iDevice-compatible charge-enable circuitry


  • Typical Input Voltage Range: 8-12VAC/VDC (bridge rectifier can be bypassed to enable use of lower 6VDC input power)
  • Maximum Input Voltage: 20VDC
  • Output Voltage: 5VDC
  • Output Current: In excess of 1A (Higher input voltages reduce maximum output current)

This unit is modifiable for additional performance - add a bigger heatsink for supplying higher current. Or replace the IC for different voltages, or to utilize a high-efficiency switching voltage regulator!

Available exclusively at Solarbotics!

You Might Also Like [Hide]


Breadboard Jumper Wire Bundle

This 70-piece flexible wire jumper kit is sure to replace your old-style solid-wire jumpers. These are more flexible, robust, and easy to use!

$6.00 USD


PN2222 NPN Transistor

This NPN transistor is similar to the TR3904, but can deliver higher maximum current at better efficiency ratings.

$0.15 USD


470 ohm Resistor

5% accuracy 1/4 watt resistors to get you started with your BEAM experiments.

$0.20 USD


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


Seeed Raspberry Pi Breakout Board v1.0

The Raspberry Pi Breakout Board for Raspberry Pi is a prototype board that allows you to combine your raspberry pi with other components and modules.

$11.50 USD


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


MCU Universal ZIF Socket Assembly

The Microcontroller (MCU) Universal ZIF Socket Assembly is perfect for hooking up a PICKit and programming 18-40 pin PIC IC's til' the cows come home!

$12.99 USD


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


Grove - Servo Branch Cable

Seeed Grove connectors contain 2 signal lines. Drive 2 servos with a single port with this cable

$4.90 USD


DPDT 5V Relay

This DPDT 5V relay is used for a good many robot projects, usually for motor power routing.

$3.50 USD





Remember Me

Forgot Your Password?

Don't Have an Account?
Sign Up!