micro servo 9g sg90 dimensions

Looking for a tiny heart that packs a punch? Meet the micro servo 9g SG90—small, light, but surprisingly powerful. If you’ve ever tinkered with drones, robotics, or remote-controlled cars, you’ve probably come across this little dynamo. Its compact size makes it a top choice for projects where space is tight but precision still matters. You might be surprised at how much this tiny servo can do.

At its core, the SG90 measures around 22.8mm in length, 12.2mm in width, and 27mm in height. Those dimensions are like a matchbox, but don’t be fooled; it can deliver a torque of about 1.8 kg/cm. That’s more than enough to move small arms, flaps, or tiny wheels. Think of it as a miniature muscle—small but capable of some serious work. It weighs just 9 grams. Talking about light as a feather — perfect for airborne projects where saving weight can make or break your flight.

You might wonder, how precise can it be? The SG90 has a positional accuracy of roughly 1.5 degrees. That tiny turn might seem insignificant, but it’s enough to get just the right angle—say, for a camera gimbal or a robotic arm. The 180-degree rotation range is standard, giving you plenty of flexibility without overcomplicating things.

Powering it is straightforward. It operates on a voltage of 4.8 to 6 volts, which means it’s compatible with most battery setups. Its speed varies from around 0.1 to 0.2 seconds per 60 degrees, so you get responsive control, enough to smoothly adjust a tiny wing or open a hatch.

What about durability? It’s built with quality plastic gears that offer decent longevity. Not industrial-grade, but for hobby projects or prototypes? Absolutely. Sometimes, the smallest components can feel fragile, but with careful handling, the SG90 offers consistent performance.

So, why pick this one? Besides its affordability and compact size, it’s versatile enough for beginner to intermediate projects. It’s easy to connect with standard servo horns, and you won’t have to worry much about overheating if it’s not pushed to its limits.

If you're planning a drone that needs to keep weight down or designing a robot where every gram counts, this tiny servo should be in your toolkit. Its dimensions, weight, and power qualities strike a fine balance—compact but capable. Plus, it’s widely available, so sourcing replacements or upgrades isn’t a hassle.

In the end, it isn’t just about getting a servo; it’s about finding that perfect tiny powerhouse that fits just right, delivering reliable movements without adding bulk. That little SG90 could be your next secret weapon for a creative or innovative project.

Established in 2005, Kpower has been dedicated to a professional compact motion unit manufacturer, headquartered in Dongguan, Guangdong Province, China.