The part number **MVM3JB51K0** refers to a high-power, metal oxide film resistor manufactured by **Stackpole Electronics**. It is designed for applications requiring stability and reliability under high-voltage or high-temperature conditions. --- ## Technical Specifications Table | Parameter | Specification | | :--- | :--- | | **Manufacturer** | Stackpole Electronics | | **Series** | MVM (Metal Oxide Resistor) | | **Resistance Value** | 51 kΩ (Kilohms) | | **Tolerance** | ± 5% (indicated by 'J') | | **Power Rating** | 3 Watts | | **Mounting Type** | Through-Hole | | **Package / Case** | Axial Lead | | **Composition** | Metal Oxide Film | --- ## Key Features ### 1. Metal Oxide Composition Metal oxide film resistors are preferred over standard carbon film resistors because they can withstand higher temperatures and provide better stability. They are also non-flammable and provide a higher level of safety in case of overload. ### 2. High Power-to-Size Ratio The "MVM3" designation indicates a 3-watt power rating. For its physical size, this resistor handles significant heat dissipation, making it ideal for power supplies and industrial circuits. ### 3. Safety Construction * **Flameproof Coating:** The exterior is typically coated with a flameproof material that prevents the component from catching fire if it fails due to extreme overcurrent. * **Surge Handling:** These resistors are robust against brief voltage surges or pulses compared to thin-film alternatives. --- ## Part Number Breakdown | Segment | Meaning | | :--- | :--- | | **MVM** | Series Name (Metal Oxide Power Resistor) | | **3** | Power Rating (3 Watts) | | **J** | Tolerance (± 5%) | | **B** | Packaging (Bulk) | | **51K0** | Resistance Value (51,000 Ohms) | --- ## Common Applications * **Power Supplies:** Used as bleeder resistors or voltage dividers. * **Motor Controllers:** Current limiting and snubbing circuits. * **Consumer Electronics:** High-wattage stages in CRT displays or audio amplifiers. * **Industrial Equipment:** Where long-term stability under thermal stress is required.