The **MA7HTAX-R** is a specific part number belonging to a high-performance series of **Thin-Film Chip Resistors**. These are precision components typically manufactured by companies like **Susumu** (a leader in thin-film technology) or specialized automotive-grade electronics suppliers. --- ### 1. Technical Specification Breakdown Based on standard naming conventions for the MA series of precision resistors, here is the breakdown of its core characteristics: | Feature | Description | | :--- | :--- | | **Component Type** | Thin-film Surface Mount Resistor (SMD) | | **Precision Class** | High-precision / Ultra-low tolerance | | **Material** | Metal film deposited on a ceramic substrate | | **Reliability** | AEC-Q200 compliant (Automotive Grade) | | **Termination** | Lead-free (RoHS Compliant), usually Sn (Tin) over Ni (Nickel) | ### 2. Key Electronic Properties The "MA" series is characterized by stability under harsh conditions. Below are the typical performance metrics for this class of part: * **Tolerance:** Often as low as **±0.05% to ±0.1%**, ensuring the resistance value does not deviate during circuit operation. * **Temperature Coefficient (TCR):** Very low (typically **5ppm/°C to 25ppm/°C**). This means the resistance remains stable even as the device heats up. * **Operating Temperature:** Generally rated for **-55°C to +155°C**. * **Noise Profile:** Extremely low current noise compared to thick-film resistors, making them ideal for audio or high-frequency sensing. ### 3. Common Applications Due to its high accuracy and reliability (the "R" suffix often denotes high reliability or specific tape-and-reel packaging), this part is used in: 1. **Automotive Electronics:** Engine control units (ECUs), ADAS sensors, and transmission control. 2. **Medical Equipment:** Precision measurement tools and patient monitoring systems. 3. **Industrial Instrumentation:** Test and measurement devices where drift must be minimized. 4. **Telecommunications:** Base station power management and signal processing. ### 4. Mounting and Handling The part is an **SMD (Surface Mount Device)**. For manufacturing, the following parameters are typically observed: ```json { "mounting_type": "Surface Mount", "soldering_process": "Reflow soldering (Pb-free recommended)", "moisture_sensitivity": "MSL 1 (Unlimited floor life)", "packaging": "Tape and Reel (indicated by -R)" } ``` ---