The **FPE-53-R** is an electronic component primarily classified as a **Precision Thin Film Chip Resistor**, commonly manufactured by Susumu. These resistors are designed for applications requiring high stability and low noise. --- ### 1. Key Technical Specifications | Parameter | Specification (Typical) | | :--- | :--- | | **Type** | Thin Film Chip Resistor | | **Resistance Range** | Typically 10 $\Omega$ to 100k $\Omega$ (varies by series) | | **Tolerance** | $\pm$0.1% to $\pm$0.5% (High Precision) | | **Power Rating** | 0.063W (1/16W) to 0.1W depending on package | | **Operating Temp** | -55°C to +125°C | | **TCR** | $\pm$25 ppm/°C (Temperature Coefficient) | --- ### 2. Core Features * **Thin Film Technology:** Unlike thick film resistors, thin film provides much tighter tolerances and lower temperature coefficients, making it ideal for precision circuits. * **Low Noise:** Due to the metallic layer structure, it produces significantly less current noise than standard carbon or thick film resistors. * **Stability:** Excellent long-term stability under humid or high-temperature conditions. * **RoHS Compliant:** The "R" suffix typically denotes compliance with environmental regulations regarding lead-free construction. --- ### 3. Pinout and Construction While resistors are non-polarized (can be installed in either direction), the construction of the FPE-53-R series involves: 1. **Alumina Substrate:** The base material. 2. **Resistive Layer:** A thin layer of Ni-Cr (Nickel-Chromium) alloy. 3. **Protective Coating:** A glass or epoxy layer to prevent oxidation. 4. **Terminations:** Solderable end wraps (typically Matte Tin over Nickel). --- ### 4. Typical Applications * **Medical Equipment:** High-accuracy diagnostic tools. * **Industrial Control:** Precision sensors and feedback loops. * **Telecommunications:** Signal processing and base station equipment. * **Automotive:** Electronic Control Units (ECUs) where heat stability is critical.