The **AB-AV107-R** is a specific electronic component, typically categorized as a **Surface Mount Device (SMD) Vibration Motor**. These components are widely used in handheld electronics to provide haptic feedback or silent alerts. Below is a detailed breakdown of its electronic and mechanical specifications. --- ## 1. Technical Specifications The AB-AV107-R is generally a DC-driven motor. The following table highlights the typical electrical characteristics for this class of component: | Parameter | Typical Value | | :--- | :--- | | **Motor Type** | Cylinder / Pager Motor (Vibration) | | **Rated Voltage** | 3.0V DC | | **Operating Voltage Range** | 2.2V – 3.6V DC | | **Rated Current** | 80mA – 100mA (Max) | | **Rated Speed** | 10,000 – 14,000 RPM | | **Starting Voltage** | 1.8V DC | | **Insulation Resistance** | 10MΩ Min | | **Operating Temperature** | -20°C to +60°C | --- ## 2. Key Electronic Features ### A. Commutation This part is a **Brushed DC Motor**. Inside the housing, precious metal brushes transfer electrical current to the commutator on the rotor. The interaction between the magnetic field of the permanent magnet and the current in the windings creates the rotational force. ### B. Haptic Output (Eccentric Rotating Mass) The "vibration" is generated by an **Eccentric Rotating Mass (ERM)** attached to the shaft. When the motor spins, the asymmetrical weight creates a centrifugal force that causes the entire component to displace rapidly, perceived by the user as a vibration. ### C. Mounting Style The "-R" suffix often indicates a specific packaging or mounting configuration, typically **Tape & Reel** for automated SMT (Surface Mount Technology) assembly. The pads on the bottom are soldered directly to the PCB. --- ## 3. Circuit Integration Example To drive an AB-AV107-R using a microcontroller (like an Arduino or ESP32), a driver circuit is required because microcontrollers cannot provide the 80mA-100mA current directly. ```cpp // Basic PWM Haptic Control int motorPin = 9; // Connected to Base of NPN Transistor void setup() { pinMode(motorPin, OUTPUT); } void loop() { analogWrite(motorPin, 150); // Moderate vibration delay(500); analogWrite(motorPin, 0); // Stop delay(1000); } ``` --- ## 4. Design Considerations * **Flyback Diode:** Always place a diode (e.g., 1N4148) in parallel with the motor to protect your circuit from voltage spikes caused by the motor's back-EMF. * **Decoupling Capacitor:** A small capacitor (0.1µF) across the motor terminals can help reduce electrical noise (EMI) that might interfere with nearby sensors. * **Current Draw:** Ensure the power supply can handle the "Starting Current," which is significantly higher than the "Rated Current." ---