The **M2PHSL-152-R2** is a specific electronic component belonging to the **electromagnetic buzzer** or **transducer** family, typically used for audible signaling in industrial and automotive applications. --- ### 1. Component Overview This part is a high-decibel piezoelectric or electromagnetic indicator. Below are the core technical characteristics typically associated with this series: | Feature | Specification Details | | :--- | :--- | | **Component Type** | Piezoelectric / Magnetic Sounder | | **Input Voltage Range** | Typically 1.5V to 15V DC (model specific) | | **Sound Pressure Level** | ~85dB to 100dB at 10cm | | **Frequency** | 2300Hz - 2900Hz (Resonant) | | **Mounting Style** | Through-hole (PCB) or Wire Leads | | **Material** | PPO or ABS Plastic Housing | --- ### 2. Key Electronic Attributes #### A. Tone Generation The "152" designation often refers to the specific frequency or internal circuitry configuration. This part is usually an **internal drive** type, meaning it contains its own oscillation circuit. You only need to apply a DC voltage to trigger the sound, rather than providing a PWM signal. #### B. The "R2" Suffix In electronic part numbering, "R2" usually indicates: * **Revision 2:** An updated design with improved thermal resistance or sound output. * **Packaging:** RoHS 2 compliance or Tape & Reel packaging variations. #### C. Electrical Efficiency * **Low Current Consumption:** Designed to operate at <30mA, making it suitable for logic-level control via a transistor or MOSFET. * **Operating Temperature:** Generally rated for -40°C to +85°C. --- ### 3. Application Use Cases Due to its high reliability and specific sound profile, it is commonly found in: * **Industrial Control Panels:** Error alerts or status confirmation. * **Household Appliances:** End-of-cycle beeps for microwaves or washing machines. * **Medical Equipment:** Non-critical alarm signals. --- ### 4. Typical Circuit Integration To drive this part using a microcontroller (like an Arduino or ESP32), use the following simple schematic: ```cpp // Example: Driving a DC Buzzer (Internal Drive) const int buzzerPin = 9; void setup() { pinMode(buzzerPin, OUTPUT); } void loop() { digitalWrite(buzzerPin, HIGH); // Sound ON delay(1000); digitalWrite(buzzerPin, LOW); // Sound OFF delay(1000); } ```