The **MPV360R1LJ-R** is a high-performance, thick-film power resistor manufactured by **KOA Speer Electronics**. It is designed specifically for power electronics applications that require stability and high wattage in a compact footprint. --- ### ## Technical Specifications The following table outlines the primary electrical and physical characteristics of the MPV360R1LJ-R: | Parameter | Specification | | :--- | :--- | | **Resistance Value** | 0.1 Ω (Ohms) | | **Tolerance** | ±5% (J-grade) | | **Power Rating** | 60 Watts (with appropriate heatsinking) | | **Mounting Style** | TO-220 Package (Through-hole) | | **Dielectric Strength** | 2000V AC | | **Temperature Coefficient** | ±100 ppm/°C | | **Operating Temp Range** | -55°C to +155°C | --- ### ### Key Internal Parts & Construction 1. **Thick Film Element**: The resistive element is made of a metal-glaze film fired onto a ceramic substrate. This allows for high power density and excellent non-inductive properties. 2. **Ceramic Substrate**: High-purity Alumina is used to facilitate efficient heat transfer from the resistive element to the metal backplate. 3. **Encapsulation**: The part is molded in a flame-retardant epoxy resin, which protects the internal film from humidity and mechanical stress. 4. **Metal Backplate**: An integrated metal plate is exposed on one side, designed to be bolted directly to a heatsink to dissipate the 60W of thermal energy. --- ### ### Applications The MPV series is commonly used in circuits where high current needs to be monitored or dissipated: * **Motor Control:** Used as a current sensing resistor for high-torque motors. * **Power Supplies:** Acts as a snubber resistor or a dummy load for switching power supplies. * **Automotive:** Found in EV charging systems and battery management systems (BMS). * **Inverters:** Used for surge protection and high-frequency filtering. --- ### ### Usage Precautions * **Heat Dissipation:** While rated for 60W, this is only achievable if the device is mounted to a substantial heatsink. Without a heatsink, the power rating drops significantly (often to 2.25W - 3W). * **Thermal Paste:** It is recommended to use a thermal interface material (TIM) between the resistor's backplate and the heatsink to minimize thermal resistance.