The **RG3-211N-R15** is a high-precision, thin-film chip resistor array manufactured by **Susumu**. It belongs to the RG series, which is renowned in the electronics industry for its high reliability, low noise, and excellent stability under harsh conditions. --- ### 1. Key Technical Specifications The following table summarizes the primary electrical characteristics of the RG3-211N-R15: | Parameter | Specification | | :--- | :--- | | **Resistance Value** | 100 $\Omega$ (Standard for this series code) | | **Tolerance** | ±0.02% to ±0.1% (Ultra-precision) | | **Temperature Coefficient (TCR)** | ±5 ppm/°C to ±25 ppm/°C | | **Number of Resistors** | 3 Resistors (Integrated in one package) | | **Power Rating** | 0.063W (1/16W) per element | | **Operating Temperature** | -55°C to +155°C | | **Package Type** | Surface Mount (SMD) | --- ### 2. Physical Structure and Design The "RG" series utilizes a specific inorganic passivation technology that distinguishes it from standard thick-film resistors. * **Thin-Film Technology:** Uses a metal film deposited on a ceramic substrate, providing much tighter tolerances and lower noise than carbon or thick-film alternatives. * **Integrated Array:** The "3" in the part number indicates three resistors are housed within a single SMD package. This ensures **excellent tracking**: because the resistors are on the same substrate, they age and react to temperature changes identically. * **Sulfur Resistance:** The inorganic thin-film structure makes these parts inherently resistant to sulfurization, a common failure mode in industrial electronics. --- ### 3. Part Number Breakdown Understanding the nomenclature helps in identifying specific variants: | Prefix | Number of Elements | Circuit Type | Resistance Code | Tolerance | | :--- | :--- | :--- | :--- | :--- | | **RG** | **3** | **211** | **N** | **R15** | | Susumu Thin Film | 3 Resistors | Internal schematic/layout | TCR (e.g., ±10ppm) | Resistance/Packaging | --- ### 4. Common Applications Due to its high precision and stability, this component is typically found in: 1. **Medical Equipment:** Precision imaging and diagnostic tools where signal integrity is critical. 2. **Automotive Electronics:** Sensors and control units (ECUs) requiring long-term reliability. 3. **Industrial Instrumentation:** High-accuracy scales, bridge circuits, and measurement devices. 4. **Telecommunications:** High-frequency base stations and signal processing.