The **KUS-BA-R** is an electronic component primarily classified as a **Precision Low-Ohmic Resistor** (often used for current sensing or Shunt applications). These parts are critical in power management systems to monitor current flow with high accuracy and minimal heat dissipation. Below is a detailed breakdown of its electronic characteristics and specifications. --- ### 1. General Specifications The KUS-BA-R series is typically manufactured using metal alloy technology to ensure stability and low noise. | Feature | Description | | :--- | :--- | | **Component Type** | Current Sense Resistor (Shunt) | | **Construction** | Metal Plate / Alloy | | **Resistance Range** | Low milliohm (mΩ) range (e.g., 1mΩ to 100mΩ) | | **Tolerance** | Usually ±1% or ±5% | | **Operating Temp** | -55°C to +170°C (standard automotive grade) | --- ### 2. Key Electronic Characteristics #### A. Power Rating These resistors are designed to handle significant power loads despite their small size. Depending on the specific footprint, power ratings usually range from **1W to 5W**. #### B. Temperature Coefficient of Resistance (TCR) The "BA" variant typically features a low TCR (measured in PPM/°C). This means the resistance value remains stable even as the component heats up due to high current flow, ensuring measurement accuracy. #### C. Inductance Because these are used in high-frequency switching environments (like DC-DC converters), they are designed with **low inductance** to prevent voltage spikes and signal distortion. --- ### 3. Application Use Cases The KUS-BA-R is commonly found in the following electronic circuits: 1. **Battery Management Systems (BMS):** Measuring the charge and discharge current of lithium-ion batteries. 2. **Motor Controllers:** Providing feedback to the processor regarding the torque/load of a motor. 3. **Power Supplies:** Overcurrent protection and regulation in AC/DC or DC/DC converters. 4. **Automotive Electronics:** Monitoring current in power steering or braking systems. --- ### 4. Typical Footprint (SMD) The KUS-BA-R is a **Surface Mount Device (SMD)**. Common package sizes include: * **2512** (6.4 x 3.2 mm) * **3921** (10.0 x 5.2 mm) * **5930** (15.0 x 7.5 mm) ---