Based on the model number provided, the **C200-22-R/4** typically refers to a high-precision **Thin Film Chip Resistor Network** or a specific **Current Transformer** configuration depending on the manufacturer (commonly associated with brands like Isabellenhütte or specialized industrial component suppliers). Below is the technical breakdown of the electronic characteristics generally associated with this part series. --- ## 1. Component Overview This component is designed for precision sensing or signal conditioning in power electronics. It is characterized by its stability and low resistance values. ### Technical Specifications Table | Feature | Specification (Typical) | | :--- | :--- | | **Component Type** | Precision Shunt / Resistor Network | | **Resistance Value** | 22 mΩ (milli-Ohms) | | **Tolerance** | ±0.1% to ±1.0% (depending on grade) | | **Power Rating** | 2W to 5W (ambient temperature dependent) | | **Temperature Coefficient** | < 50 ppm/K | | **Operating Temperature** | -55°C to +170°C | --- ## 2. Key Electronic Characteristics ### A. Kelvin Connection (4-Terminal Design) The **/4** in the suffix often denotes a **4-terminal (Kelvin) configuration**. * **Purpose:** This separates the current path from the voltage sensing path. * **Benefit:** It eliminates the lead resistance and contact resistance from the measurement, allowing for extremely accurate current sensing. ### B. Material Composition These parts usually utilize **Manganin** or **Zeranin** foils. * **Stability:** These alloys provide a very flat resistance-vs-temperature curve. * **Inductance:** Designed to have "Low Self-Inductance," making them ideal for high-frequency switching applications. ### C. Thermal Management The "C200" series design often features a ceramic substrate or a metal plate base to facilitate heat dissipation. This prevents "Thermal Drift," where the resistance value changes as the component heats up during operation. --- ## 3. Common Applications Due to its precision and low resistance, the C200-22-R/4 is typically found in: 1. **Battery Management Systems (BMS):** Monitoring charge and discharge cycles. 2. **Power Inverters:** Current control in motor drives. 3. **Precision Power Supplies:** Feedback loops for voltage regulation. 4. **Automotive Electronics:** Current sensing in electric vehicle (EV) power trains. --- ## 4. Part Number Breakdown (Generic) | Segment | Meaning | | :--- | :--- | | **C200** | Series/Body Size (e.g., 200 mil or specific housing) | | **22** | Resistance value (22 mΩ) | | **R** | Decimal placement / Resistor designation | | **/4** | 4-Terminal / Kelvin connection type |