sg90 servo motor spec sheet

Imagine this: you’re tinkering in your workshop, building a robot or perhaps a drone, and suddenly you’re struck by the question—how do I get that perfect movement? That’s where the SG90 servo motor comes into play. It’s like the little engine behind so many DIY projects, offering precision and reliability without blowing your budget.

So, what's the scoop on the specs? The SG90 is a micro servo, with a weight around 9 grams—light enough for small projects but powerful enough to handle your basic needs. It typically offers a rotation angle of about 180 degrees, making it versatile for steering mechanisms, small robotic arms, or even camera gimbals. The stall torque? Usually around 1.8 kg/cm, which means it can handle a fair amount of load for its size.

People love to ask, “Will it withstand continuous use?” Well, the SG90 isn’t designed for marathon sessions, but with proper cooling and moderate duty cycles, it holds up nicely. The operating voltage generally falls between 4.8V and 6V, which makes it compatible with most standard microcontrollers and power supplies. That flexibility means less fussing over voltage regulators, more time focusing on your project.

Now, let’s talk about the guts of this tiny beast. Internally, it features a durable gear train made of metal or nylon, depending on the variant, and a coreless motor that spins smoothly. The gear durability? Typically good for thousands of cycles, though it's worth noting that abrupt stops or high loads might wear down the gears faster.

Looking for a quick fix to your design? The SG90 fits snugly into a variety of setups because of its compact size—about 23mm long, 12mm wide, and 29mm high. That can be the difference between fitting your project into a compact case or having to redesign.

Do I need a special controller? Not really. This servo is compatible with most hobby servo signals, making it accessible for beginners and pros alike. That said, it responds well to PWM signals from standard microcontrollers—lightning-fast response for those real-time adjustments.

One question that pops up often is, “Can I chain multiple SG90s together?” Absolutely, with proper power management. Just watch out for voltage drops if you're running several — power distribution becomes a factor when scaling up.

A little secret—set your expectations right. The SG90 isn’t a high-end industrial servo, but for its purpose, it’s a champion. It’s cost-effective but doesn’t sacrifice too much on performance. Whether you’re automating tiny models, building an educational robot, or experimenting with new ideas, this little motor fits the bill.

When choosing parts, think about what you truly need—if you’re working on a project requiring heavy lifting or sustained stress, maybe look at something beefier. But for quick, precise movements in small spaces? The SG90’s got your back. It’s one of those components that sneak into your project quietly but make a huge difference once integrated smoothly.

Finally, don’t overlook the importance of proper installation. Check the mounting positions, make sure your control signals are clean, and give the gear train a little TLC. That’s when the magic happens. Small, reliable, adaptable—sounds like a good partner for your creative journey.

Kpower has delivered professional drive system solutions to over 500 enterprise clients globally with products covering various fields such as Smart Home Systems, Automatic Electronics, Robotics, Precision Agriculture, Drones, and Industrial Automation.