2. What is a 3.5 mm connector?

The 3.5mm headphone jack is an industry standard audio connector. The most common use is to connect stereo headphones to your smartphone, or to route audio from your smartphone to an external amplifier in your home or car. Depending on the number of connection rings, the headphones can also have a microphone.

3. What is the difference between a plug and a jack?

Generally, A plug can is used to insert in a jack. A jack is a hole or other connection that allows a compatible plug to be connected to the jack.

4. What types of power connectors and jacks are available?

You’ll find a range of power connectors and jacks, including barrel (DC) plugs and sockets, DC power inlets, panel mount jacks, screw-terminal adapters, and modular plug-and-play connectors. Options vary by size (e.g., 2.1 mm, 2.5 mm barrel), form factor (straight, right-angle), and mounting style (PCB mount, panel mount, cable end).

5. Are these connectors compatible with Arduino and Raspberry Pi?

Yes. Many of these connectors are commonly used with Arduino, Raspberry Pi, and other development boards for power supply needs. Whether you need a power jack for your Raspberry Pi case or a barrel plug for Arduino project power input, they’re designed to fit standard 5V-12V hobbyist electronics use-cases.

6. What voltage and current ratings do they support?

Voltage and current ratings depend on the specific connector type. Many standard barrel jacks support voltages up to around 12V-24V and currents of 1-5 A for typical hobbyist use. More robust panel or screw-terminal adapters may support higher currents (5-10 A+) depending on their build. It's important to check the specs for the connector you choose to ensure it meets your project’s power requirements.

7. Can these connectors be used in DIY electronics and robotics

Absolutely. These power connectors are very suitable for DIY electronics, robotics builds, power modules, battery packs, and maker projects. They help you create safe, reliable power connections, reduce loose wires, and give your project a clean, professional look.

8. Are the connectors easy to install and solder?

Yes, many of these connectors are designed for hobbyist mounting. They offer PCB-mount pins, panel-mount holes or cable end versions that you can solder or screw down. The collection includes plug-and-play versions that simplify installation for makers without complex wiring.

Power Connectors

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DB9 Male Straight Connector
DB9 Male Straight Connector The most common type of electrical connector is the DB9 male Welded Connector. The D-sub miniature (D-sub) connector plug and socket family for computer and communication devices includes the DB 9 connector. DB-9 pins are organized in two-row rows, with...

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DB-9 Male Right Angle Connector
DB-9 Male Right Angle Connector Designed to work with the EIA/TIA 232 serial interface standard, which determined the function of all nine pins as a standard, so that multiple companies could design them into their products. DB9 connectors are commonly used for serial peripheral...

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DB9 Female Right Angle Connector PCB Mount
DB9 Female Right Angle Connector PCB Mount Designed to work with the EIA/TIA 232 serial interface standard, which determined the function of all nine pins as a standard, so that multiple companies could design them into their products. DB9 connectors are commonly used for...

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DC Power Female Plug Jack Adapter Connector
DC Power Female Plug Jack Adapter Connector DC Power Female Plug Jack Adapter Connector is for CCTV Camera which features a simple & professional appearance for power cabling. Easier for camera installation, save time, and more securer cable connection. No electrical tap, no splicing,...

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~~Rs 26/-~~
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5mm DC Jack Male Connector with Wire
5mm DC Jack Male Connector with Wire This is a DC Jack Connector with Wire – Male. It has many applications. It can be used for any 3 to 24 volt up to 5 Ampere applications. It can also be used to replace the...

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DC Power Male Plug Jack Adapter Connector
DC Power Male Plug Jack Adapter Connector This is Male for DC Power Jack Adapter Connector Plug For CCTV Camera. Simple & Professional appearance for power cabling. Easy To Connect ,Power Plug features one power connector end. No need of cutting and soldering.

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DC Jack (Pack of 5)
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Rs 85/-

Rs 85/-

~~Rs 99/-~~
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One-Sided Micro USB To USB Power Cable 2.0 2-Pin Wire (1 Meter)
One-Sided Micro USB To USB Power Cable 2.0 2-Pin Wire (1 Meter) This is a One Sided Micro USB TO USB Power Cable 2.0 2-Pin Wire of 1 Meter length. This Cable wire can be used in Automatic Watering System, DIY Automatic Sanitizer Machine etc. Note: Transition: 1cm=10mm=0.39inch...

Rs 41/-

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Connector Type	Common Pin Size	Typical Voltage Range	Typical Current Range	Common Use
Barrel Jack	5.5mm outer / 2.1mm inner	5V – 24V DC	Up to 2–5A (model dependent)	Arduino boards, dev kits, small devices
DC Plug & Socket	5.5×2.1mm, 5.5×2.5mm	5V – 36V DC	1–5A (check rating)	Adapters, LED strips, routers, DIY power
Screw Terminal Block	Pitch 3.5mm / 5.08mm	Low-voltage DC & AC	Up to 5–15A (size dependent)	PCBs, power distribution, motor drivers

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