The **MA26FBA-R** is a specific electronic component, typically categorized as a **Surface Mount (SMD) Magnetic Transducer** or **Electromagnetic Buzzer**. It is commonly used in consumer electronics to provide audible alerts or notifications. --- ### 1. Technical Specifications The following table outlines the typical electrical and mechanical characteristics of the MA26FBA-R: | Feature | Specification | | :--- | :--- | | **Type** | Magnetic Transducer (External Drive) | | **Rated Voltage** | 1.5V - 3.6V (Typical 3.0V) | | **Operating Voltage** | 1.0V ~ 5.0V | | **Rated Current** | Max 80mA - 100mA | | **Sound Pressure Level (SPL)** | ~85dB at 10cm | | **Resonant Frequency** | 2,600 Hz - 2,730 Hz | | **Coil Resistance** | 15Ω ± 3Ω | | **Operating Temperature** | -20°C to +70°C | | **Mounting Type** | Surface Mount Device (SMD/SMT) | --- ### 2. Physical Characteristics * **Small Footprint:** Designed for high-density PCB layouts, usually measuring around 8.5mm x 8.5mm or smaller. * **Material:** Usually housed in a high-temperature plastic (LCP) to withstand reflow soldering processes. * **Top/Side Port:** Depending on the specific suffix, the sound port may be located on the top or the side of the casing. --- ### 3. Circuit Integration Unlike a "piezo buzzer" which acts like a capacitor, the **MA26FBA-R** is a magnetic device (inductive load). It requires an external oscillating circuit to produce sound. #### Typical Driving Circuit To drive this component using a Microcontroller (MCU), a transistor is required to handle the current: ```mermaid [MCU GPIO] --- [Resistor] --- [Base of NPN Transistor] | [MA26FBA-R] --- [VCC] | [Flyback Diode] (Parallel to Buzzer) | [GND] ``` --- ### 4. Common Applications * **Handheld Devices:** POS terminals, scanners, and GPS units. * **Medical Equipment:** Alarms for monitors and diagnostic tools. * **Household Appliances:** Microwave beepers, washing machine cycle alerts. * **Security:** Keypad entry confirmation sounds. ---