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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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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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3.3V, 1A Step-Down Voltage Regulator D24V10F3
$
14.50
In-Stock:
5 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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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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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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-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:
3 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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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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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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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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2 x AAA Battery Holder w/Switch and JST Connector
$
2.25
Out-of-stock
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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-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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