Power Cables & Jacks Philippines: Barrel, USB & DC Leads | Circuitrocks
Power Cables, Barrel Jacks & DC Connectors — Reliable Power for Electronics
Connect your power supplies safely with our selection of DC barrel jacks, power cables, USB power leads, DC splitters, and adapter cords. Ideal for Arduino, Raspberry Pi accessories, ESP32, LED strips, routers, sensors, and custom electronics projects.
Barrel Jacks • DC Cables • USB Power • Splitters • Adapters
Why choose our power cables
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Reliable connections: secure fit for 5.5×2.1mm jacks
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Wide selection: DC, USB, screw-terminal & adapter types
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PH support: polarity guidance & power matching help
Popular uses
- Arduino & ESP32 powering
- Raspberry Pi & SBC accessories
- LED strip installations
- Pumps, fans, routers & CCTV systems
- Bench power supply adapters
Cable & connector categories
DC Barrel Jacks & Plugs
- 5.5×2.1 mm plugs (most common)
- Panel-mount DC jacks
- Screw-terminal barrel connectors
Power Cables & Adapter Leads
- DC power cords
- Male-to-female extension cables
- DC splitters for multiple devices
USB Power Cables
- USB-A to Micro USB power
- USB-A to USB-C powering
- Strong flexible cables for development boards
Tip: The most common power connector for electronics projects is the 5.5×2.1 mm center-positive barrel jack. Always double-check polarity!
Power cable chooser (quick guide)
| Need |
Best choice |
Notes |
| Standard Arduino/ESP powering |
5.5×2.1 mm DC jack |
Compatible with most 9V/12V adapters. |
| Multiple devices from one adapter |
DC splitter |
Ensure the power supply can handle total current. |
| Development boards via USB |
USB-C or Micro USB power cord |
Match with board power specs (5V). |
| Flexible wiring in DIY builds |
Screw-terminal connectors |
No soldering required. |
| Long-distance DC powering |
Thick-gauge DC cable |
Reduces voltage drop over long runs. |
Choose based on voltage, polarity, connector size, and total current requirements.
Starter bundles
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Maker Power Pack: DC cable + barrel jack + USB cord
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LED Strip Kit: DC power lead + splitter
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Microcontroller Power Set: USB cable + DC jack adapter
FAQ
What is the standard power jack size?
Most electronics projects use the 5.5×2.1 mm barrel jack (center-positive).
Can USB cables power microcontrollers?
Yes—USB-A to Micro USB or USB-C cables provide 5V power for many boards.
How do I avoid polarity mistakes?
Check that the adapter is center-positive. Use screw-terminal jacks when unsure.
Do you ship nationwide?
Yes—fast shipping across the Philippines with same-day processing.
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