The **RL1632H-R075J** is a high-precision, low-resistance chip resistor primarily used for **current sensing** applications. It is manufactured by Susumu and belongs to the RL series. --- ### 1. Key Technical Specifications Below are the primary parameters of the RL1632H-R075J: | Parameter | Specification | Details | | :--- | :--- | :--- | | **Resistance Value** | 0.075 Ω (75 mΩ) | Low resistance for minimal power loss | | **Tolerance** | ±5% (J) | Standard tolerance for current monitoring | | **Power Rating** | 0.5 W (1/2 Watt) | Capable of handling moderate power levels | | **Package Size** | 1206 (3216 Metric) | 3.2mm x 1.6mm footprint | | **Temperature Coefficient (TCR)** | ±100 ppm/°C | Stable performance across temperatures | | **Operating Temp Range** | -55°C to +155°C | Industrial grade thermal range | --- ### 2. Part Number Breakdown Understanding the nomenclature helps in identifying its specific characteristics: * **RL**: Series name (Long side terminal low resistance chip resistors). * **1632**: Physical dimensions ($1.6 \text{ mm} \times 3.2 \text{ mm}$). Note: This is a "wide terminal" type where the contacts are on the long sides. * **H**: High power rating designation for this specific size. * **R075**: Resistance value (R denotes the decimal point, so $0.075 \Omega$). * **J**: Tolerance code (J = ±5%). --- ### 3. Functional Features * **Current Sensing:** Because of its very low resistance, it is placed in series with a load to measure current by monitoring the voltage drop ($V = I \times R$). * **Long-Side Terminals:** The "1632" indicates the terminals are on the long sides. This design improves heat dissipation and reduces parasitic inductance compared to standard 1206 (3216) resistors. * **Metal Foil/Thin Film Construction:** Ensures high reliability and stability over the component's lifespan. --- ### 4. Typical Applications 1. **Power Management:** DC-DC converters and voltage regulators. 2. **Battery Monitoring:** Sensing charge/discharge currents in mobile devices or power tools. 3. **Motor Control:** Detecting over-current conditions in small motors. 4. **Automotive Electronics:** Used in various ECU modules for signal feedback. ---