The **RG3-104N-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 environmental conditions. --- ### 1. Key Technical Specifications The following table summarizes the primary electrical characteristics of the RG3-104N-R15: | Parameter | Specification | | :--- | :--- | | **Resistance Value** | 100 kΩ (104 code) | | **Tolerance** | ±0.05% (N Grade) | | **Temperature Coefficient (TCR)** | ±25 ppm/°C | | **Power Rating** | 0.1W (1/10W) per element | | **Max Operating Voltage** | 100V | | **Operating Temperature** | -55°C to +155°C | | **Package Size** | 3216 Metric (1206 Imperial) | | **Number of Resistors** | 4 Resistors (Network) | --- ### 2. Component Structure and Technology #### Thin-Film Technology Unlike standard thick-film resistors, the RG series uses **metal film** sputtered onto a high-purity alumina substrate. This results in: * **Low Noise:** Ideal for sensitive analog signal paths. * **High Stability:** Minimal resistance drift over thousands of hours of operation. #### Inorganic Passivation The "RG" designation implies the use of Susumu’s proprietary inorganic passivation. This layer protects the resistive element from moisture and sulfur, preventing corrosion which is a common failure mode in industrial electronics. --- ### 3. Part Number Breakdown To understand the specific configuration, we can decode the part number: * **RG**: Series Name (High reliability precision thin film). * **3**: Case Size (3216 metric / 1206 imperial). * **104**: Resistance value (10 then 4 zeros = 100,000Ω or 100kΩ). * **N**: Resistance Tolerance (±0.05%). * **R**: Packaging format (typically Taping/Reel). * **15**: Specific variation or TCR (±25 ppm/°C). --- ### 4. Typical Applications Because of its high precision and matched resistor network characteristics, this part is commonly found in: 1. **Instrumentation Amplifiers:** Used for gain setting where precision is critical. 2. **Voltage Dividers:** Ensuring consistent ratios between multiple voltage rails. 3. **Automotive Electronics:** Used in ECUs and sensor interfaces due to high heat and moisture resistance. 4. **Medical Equipment:** High-accuracy diagnostic tools. --- ### 5. Pinout Configuration The RG3 series is a 4-resistor network (8 pins total). Each resistor is isolated from the others within the package. ```text Pin 8 Pin 7 Pin 6 Pin 5 | | | | [R4] [R3] [R2] [R1] | | | | Pin 1 Pin 2 Pin 3 Pin 4 ```