The **RL1632H-R050G** 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. Part Number Breakdown To understand the component, we can decode its nomenclature: | Code Segment | Meaning | Specification | | :--- | :--- | :--- | | **RL** | Series Name | Low resistance chip resistor (Thin Film) | | **1632** | Case Size | 3.2mm x 1.6mm (Metric 3216 / Imperial 1206) | | **H** | Power Rating | High power handling (Long-side terminals) | | **R050** | Resistance Value | 0.050 $\Omega$ (50 m$\Omega$) | | **G** | Tolerance | $\pm$2% | --- ### 2. Technical Specifications The RL series is known for its stability and low noise. Below are the primary electrical characteristics for this specific model: * **Resistance:** 50 m$\Omega$ (0.050 $\Omega$) * **Tolerance:** $\pm$2% * **Power Rating:** 0.5W (1/2 Watt) * **Temperature Coefficient (TCR):** $\pm$100 ppm/°C * **Operating Temperature:** -55°C to +125°C * **Construction:** Metal foil / Thin film on a ceramic substrate. --- ### 3. Key Features & Applications #### Features * **Long-side Terminations:** This design improves heat dissipation and reduces parasitic inductance, making it more stable at higher frequencies compared to standard 1206 resistors. * **Low Noise:** Thin-film technology ensures excellent signal integrity. * **High Reliability:** Excellent resistance to sulfur and harsh environments. #### Typical Applications * **Current Sensing:** Measuring current flow in power supplies by monitoring the voltage drop across the resistor ($V = I \times R$). * **DC-DC Converters:** Used in feedback loops for voltage regulation. * **Battery Management Systems (BMS):** Monitoring charge and discharge cycles in mobile devices or automotive sub-systems. * **Motor Control:** Detecting over-current conditions to protect circuitry. --- ### 4. Footprint Comparison (Metric vs Imperial) The RL1632 series uses a "flipped" geometry where the terminals are on the long side. | Property | Value | | :--- | :--- | | **Length (L)** | 3.2 mm | | **Width (W)** | 1.6 mm | | **Mounting Type** | Surface Mount (SMD/SMT) | ---