The **RL1632H-R075F** is a high-precision, low-resistance chip resistor commonly used for current sensing applications. It is manufactured by **Susumu**, a leader in thin-film technology. --- ## 1. Component Overview The part number follows a specific nomenclature that defines its physical and electrical characteristics. | Parameter | Specification | | :--- | :--- | | **Manufacturer** | Susumu | | **Series** | RL Series (Low Resistance Chip Resistors) | | **Case Size** | 1632 (Metric) / 0612 (Imperial) | | **Resistance Value** | 0.075 $\Omega$ (75 m$\Omega$) | | **Tolerance** | $\pm 1\%$ (F) | | **Power Rating** | 0.5W (1/2 Watt) | --- ## 2. Key Electrical Features ### High Power, Long-Side Terminal The "1632" indicates that the terminals are on the **long sides** of the rectangular body. This design offers two major advantages: 1. **Heat Dissipation:** Larger terminal surface area allows for better heat transfer to the PCB. 2. **Solder Joint Reliability:** Reduced thermal stress on the solder joints compared to short-side terminal resistors. ### Low Resistance & Precision With a resistance of only **75 m$\Omega$**, this part is designed to sit in the path of a current flow to measure the voltage drop across it ($V = I \times R$) without significantly affecting the circuit's overall power. ### Temperature Coefficient of Resistance (TCR) Susumu’s thin-film technology ensures a low TCR (typically around **$\pm 100$ ppm/°C** for this series), meaning the resistance value remains stable even as the component heats up during operation. --- ## 3. Typical Applications Because of its accuracy and power handling, the RL1632H-R075F is found in: * **DC-DC Converters:** Sensing output current for regulation. * **Battery Management Systems (BMS):** Monitoring charge and discharge cycles in mobile devices or power tools. * **Motor Control:** Detecting overcurrent conditions. * **Power Supplies:** Load monitoring and protection circuits. --- ## 4. Part Number Breakdown ```text RL 1632 H - R075 - F | | | | | | | | | +-- Tolerance (F = ±1%) | | | +------- Resistance (R075 = 0.075Ω) | | +------------- Power Rating / Type (H = High Power) | +----------------- Size (1.6mm x 3.2mm) +--------------------- Series Name ```