The **RG2-202S-R15** is a high-precision, metal thin-film resistor manufactured by **Susumu**. It belongs to the **RG series**, which is widely recognized in the electronics industry for its exceptional reliability and ultra-precision performance. --- ### 1. Key Technical Specifications Below are the primary electronic characteristics of the RG2-202S-R15: | Parameter | Value / Detail | |:---|:---| | **Manufacturer** | Susumu | | **Series** | RG (Ultra-Precision Thin Film) | | **Resistance Value** | 2.0k $\Omega$ (indicated by "202") | | **Tolerance** | $\pm$0.02% (represented by "S") | | **Power Rating** | 0.25W (1/4 Watt) | | **Package / Case** | 0805 (Metric 2012) | | **Temp. Coefficient (TCR)** | $\pm$5 ppm/°C (indicated by "R15") | | **Operating Temp Range** | -55°C to +155°C | --- ### 2. Breakdown of the Part Number The alphanumeric code follows a specific naming convention: * **RG**: Series name (Thin film, high precision). * **2012 (2)**: Dimensions (2.0mm x 1.25mm, equivalent to 0805 Imperial). * **202**: Resistance code (20 followed by 2 zeros = 2000 $\Omega$ or 2k $\Omega$). * **S**: Tolerance code ($\pm$0.02%). This is extremely tight, suitable for instrumentation. * **R15**: Temperature Coefficient of Resistance (TCR) and Packing. "R" indicates the TCR of 5ppm, and "15" often refers to the specific taping/reel quantity or variation. --- ### 3. Core Features & Technology The RG series is distinguished by its construction and performance: * **Sulfur Resistance:** These resistors are designed to be inorganic and sulfur-resistant, making them ideal for harsh industrial environments. * **Long-term Stability:** The metal thin-film technology ensures that the resistance value changes very little over thousands of hours of operation (typically $<0.1\%$ drift). * **Low Noise:** Thin-film construction offers much lower current noise compared to standard thick-film resistors, making them ideal for audio and signal processing. * **High Reliability:** Often used in automotive and medical applications where failure is not an option. --- ### 4. Typical Applications Due to its high precision and low drift, the RG2-202S-R15 is commonly found in: 1. **Test & Measurement:** Multimeters, oscilloscopes, and automated test equipment. 2. **Medical Electronics:** Imaging equipment and patient monitoring sensors. 3. **Industrial Control:** Precision scales, bridge circuits, and motor controllers. 4. **Automotive:** Electronic Control Units (ECUs) and sensor interfaces.