Based on the part number **M5RJ75ZPJ-R**, this component belongs to a specific series of high-precision electronic resistors. While part numbering conventions can vary slightly by manufacturer (often associated with brands like **KOA Speer** or **Panasonic**), here is the technical breakdown of its characteristics. ## Component Overview: M5RJ75ZPJ-R This is a **Metal Film Fixed Resistor**, typically used in applications requiring high stability, low noise, and precision. ### 1. Technical Specifications Table | Feature | Specification | Description | | :--- | :--- | :--- | | **Component Type** | Metal Film Resistor | Provides better stability than carbon composition. | | **Resistance Value** | 75 $\Omega$ (Ohms) | Indicated by the "75" in the part number. | | **Tolerance** | $\pm 5\%$ | The "J" suffix usually denotes a 5% deviation range. | | **Termination Style** | Axial Leaded | Designed for Through-Hole Mounting (THT). | | **Packaging** | Tape & Reel (T/R) | The "-R" suffix indicates the part is supplied on a reel. | --- ### 2. Breakdown of the Part Number The alphanumeric string follows a standard industry format for passive components: * **M5R**: Refers to the series code (Metal Film, potentially 1/8W or 1/4W power rating depending on the manufacturer's specific housing size). * **75Z**: The resistance value. "75" is the significant figure, and "Z" or the position of the multiplier defines the decimal placement (75 Ohms). * **P**: Temperature Coefficient of Resistance (TCR). This defines how much the resistance changes with temperature. * **J**: Tolerance code. In the EIA standard, **J = $\pm 5\%$**. * **-R**: Packaging code. Standard for **Tape and Reel**, used for automated pick-and-place or lead-forming machines. --- ### 3. Key Applications Because it is a metal film resistor, the **M5RJ75ZPJ-R** is preferred over carbon resistors in the following scenarios: * **Audio Equipment:** Low current noise makes it ideal for signal paths. * **Precision Circuits:** Better temperature stability ensures the resistance remains constant as the device heats up. * **Filtering:** Used in RC networks where a specific 75-ohm impedance is required (common in video/communication lines). --- ### 4. Comparison: Metal Film vs. Carbon Film | Characteristic | Metal Film (M5R) | Carbon Film | | :--- | :--- | :--- | | **Noise** | Very Low | Moderate | | **Stability** | High | Low | | **Tolerance** | Usually tighter ($\pm 1\%$ to $\pm 5\%$) | Usually wider ($\pm 5\%$ to $\pm 10\%$) | | **Cost** | Slightly Higher | Very Low |