Vibration DC Motor COM14 , R34

DescriptionWhen you are designing an interactive piece of hardware—whether it is a custom wearable device, a modified gaming controller, or a portable IoT security tracker—user feedback is critical. The 3V Coin Vibration Motor (often called a “pancake motor”) allows you to communicate with the user through physical touch, providing silent alarms or tactile confirmation that a button was pressed.How the “Pancake” Motor WorksUnlike standard cylindrical motors, this coin motor features a completely enclosed design. Inside the tiny metal casing is a microscopic DC motor attached to an asymmetrical, off-center weight (an Eccentric Rotating Mass, or ERM). When voltage is applied, the motor spins the unbalanced weight at incredibly high speeds (up to 12,000 RPM), causing the entire metal casing to vibrate aggressively. Because the spinning mass is completely sealed inside, you do not have to worry about the mechanism snagging on wires or getting jammed by dust inside your enclosure.Driving the Motor (Crucial Design Note)While this motor is tiny, it cannot be powered directly from a microcontroller GPIO pin! A standard Arduino pin maxes out at around 40mA, and an ESP32 maxes out around 12mA. This motor requires roughly 70mA to 100mA to spin up. To use this safely:You must use a small NPN transistor (like the BC547 or 2N2222) to switch the motor’s power.You must place a small flyback diode (like a 1N4148) in reverse parallel across the motor’s red and blue wires to protect your silicon chips from voltage spikes when the motor turns off.Effortless MountingMechanical mounting is usually the hardest part of adding a motor to a project. This coin motor solves that with a pre-applied 3M adhesive pad on the bottom. Simply peel off the protective white sticker and press the motor firmly against the inside wall of your project box or directly onto your PCB.Key Features:Silent Notifications: The ultimate actuator for projects where an audio buzzer would be disruptive or annoying.Low Profile: At less than 3mm thick, it adds virtually no bulk to portable electronics.Pre-Wired: Comes with delicate red and blue micro-wires already soldered and strain-relieved with a drop of epoxy, saving you from doing microscopic solder work.Technical Specifications:Rated Voltage: 3.0V DCOperating Voltage Range: 2.5V to 3.5V DCRated Speed: ~12,000 RPMRated Current: 70mA (Typical), up to 100mA MaxStarting Voltage: ≤ 2.3V DCDimensions: 10mm Diameter x 2.7mm ThicknessLead Wire Length: ~10mm to 15mmIdeal Applications:Adding haptic feedback to custom touchscreens and control panelsSilent alarms in wearable electronics and smartwatches“Bump” notifications in IoT tracking devices (like smart boxes)Force-feedback modification for DIY gamepads and joysticks