The **MAH25TCA-R** is a high-performance **Brushless DC (BLDC) Motor** manufactured by **Oriental Motor**. It belongs to the BLH Series, which is designed for compact applications requiring stable speed control and energy efficiency. --- ## 1. Core Technical Specifications The following table outlines the primary electronic and mechanical characteristics of the MAH25TCA-R: | Parameter | Specification | | :--- | :--- | | **Motor Type** | Brushless DC Motor (BLDC) | | **Output Power** | 25 Watts (1/30 HP) | | **Input Voltage** | 24 VDC | | **Rated Speed** | 3000 r/min | | **Speed Control Range** | 100 to 3000 r/min | | **Permissible Torque** | Depends on Gear Ratio (if attached) | | **Shaft Type** | Round Shaft (No Gearhead) | | **IP Rating** | IP65 (Dust-tight, Water jets) | --- ## 2. Electronic Components & Feedback System The MAH25TCA-R is not a simple "plug-and-play" DC motor; it requires a dedicated driver to manage its electronic commutation. ### A. Internal Hall Effect Sensors Unlike brushed motors that use physical brushes for commutation, this motor uses **Hall Effect Sensors** located inside the motor housing. These sensors: * Detect the magnetic pole position of the rotor. * Send feedback signals to the driver to ensure the stator coils are energized in the correct sequence. * Provide precise speed feedback to maintain constant velocity even under varying loads. ### B. Wiring and Connectivity The motor typically features a lead wire or a connector type (indicated by the "-R" suffix, often denoting a specific cable orientation or lead type). It consists of: * **Power Leads:** Thicker wires to carry the 24V current to the stator windings. * **Signal Leads:** Thinner wires for the 5V Hall sensor power and signal outputs (usually 5 wires: Vcc, Ground, H1, H2, H3). --- ## 3. Key Electronic Features 1. **Speed Stability:** Due to the closed-loop feedback from the Hall sensors, the motor exhibits excellent speed regulation (typically ±0.5% or less), preventing "sag" when the load increases. 2. **Brushless Design:** The absence of brushes eliminates carbon dust and electrical noise (EMI), making it suitable for sensitive electronic environments or cleanrooms. 3. **Protective Functions:** When paired with an Oriental Motor BLH driver, the system provides electronic protection against: * **Overload:** Shuts down if the motor is stalled. * **Overvoltage:** Protects internal circuits from spikes. * **Phase Loss:** Detects if a motor winding is disconnected. --- ## 4. Application Context Because of its **IP65 rating** and **24VDC operation**, the MAH25TCA-R is commonly found in: * Medical analysis equipment. * Conveyor systems in food packaging. * AGVs (Automated Guided Vehicles). * Semiconductor manufacturing tools.