The **ML1102FE-R52** belongs to the **Ohmite M Series** of metal film resistors. These are professional-grade components designed for applications requiring precision, stability, and low noise. --- ### 1. Key Technical Specifications The part number follows a specific nomenclature. Here is the breakdown of its electronic characteristics: | Parameter | Value / Specification | | :--- | :--- | | **Resistance** | 1.1 kΩ (1,100 Ohms) | | **Power Rating** | 0.5 Watts (1/2 W) | | **Tolerance** | ±1% (F - Tolerance code) | | **Temperature Coefficient** | ±50 ppm/°C | | **Voltage Rating** | 350V (Maximum Working Voltage) | | **Construction** | Metal Film | | **Package / Case** | Axial Leaded (Standard Through-hole) | --- ### 2. Physical & Material Composition - **Resistive Element:** A thin layer of metal alloy is deposited onto a high-grade ceramic rod. This construction provides much better stability than carbon composition resistors. - **Coating:** Usually coated with a flame-retardant epoxy or lacquer to protect against environmental moisture and oxidation. - **Lead Material:** Solder-plated copper leads for high conductivity and ease of soldering. --- ### 3. Usage & Applications Due to the **1% tolerance** and the **metal film** construction, the ML1102FE-R52 is typically used in: * **Precision Circuits:** Voltage dividers and feedback loops in Op-Amps where accuracy is critical. * **Audio Equipment:** Metal film resistors produce significantly less "thermal noise" than carbon resistors, making them ideal for high-fidelity audio signal paths. * **Industrial Controls:** Used in sensors and measurement equipment where temperature stability (50 ppm/°C) prevents resistance drift during operation. --- ### 4. Part Number Decoder If you are looking at the Ohmite catalog, the code breaks down as follows: ```text ML 1102 F E -R52 | | | | | | | | | +-- Packaging Code (R52 = Tape & Reel, 52mm width) | | | +------- RoHS Compliant | | +---------- Tolerance (F = 1%) | +-------------- Resistance Value (110 + 2 zeros = 1100Ω) +------------------- Series (M Series, Metal Film) ```