The **WSBS-16CA-R** is a specific electronic component manufactured by **Vishay Dale**. It belongs to the family of **Power Metal Strip® Shunt Resistors**. These parts are primarily used for high-precision current sensing in automotive and industrial applications. --- ## Technical Specifications The following table summarizes the key electrical and physical characteristics of the WSBS-16CA-R: | Parameter | Specification | | :--- | :--- | | **Component Type** | Shunt Resistor (Current Sense) | | **Resistance Value** | Typical range (often 100 μΩ to 500 μΩ) | | **Power Rating** | Up to 36 W (design dependent) | | **Tolerance** | ±5% (Standard for this series) | | **Temperature Coefficient** | Low TCR (< 20 ppm/°C for the element) | | **Construction** | Electron-beam welded terminal-to-element | | **Mounting Type** | Battery Post / Custom Bolt-on | --- ## Key Features ### 1. Construction Material The part is constructed using a solid metal **Manganese-Copper alloy** resistive element. This material is chosen for its extremely low resistance and stability across a wide range of temperatures. ### 2. Physical Design (The "CA" Suffix) The "16CA" designation refers to the physical configuration: * **Massive Terminals:** It features heavy-duty copper terminals designed to be bolted directly to a battery terminal or busbar. * **Stability:** The welded construction ensures that the electrical resistance remains constant even under high vibration or thermal shock. ### 3. Low Inductance Because it is a solid metal strip rather than a wire-wound component, it has **very low inductance** (< 5 nH). This allows for accurate current readings even in high-frequency switching environments. --- ## Common Applications The WSBS-16CA-R is engineered for "under-the-hood" environments and heavy power management systems: * **Battery Management Systems (BMS):** Monitoring the state of charge (SoC) and state of health (SoH) in EV or lead-acid batteries. * **Electric Vehicle (EV) Inverters:** Measuring high-current flow to the motor. * **Industrial Busbars:** Monitoring power distribution in large-scale server farms or factories. --- ## Comparison with Standard Resistors | Feature | Standard SMD Resistor | WSBS-16CA-R | | :--- | :--- | :--- | | **Current Capacity** | Low (Milliamps to Amps) | High (Hundreds of Amps) | | **Heat Dissipation** | Limited by PCB | High (Massive copper heatsink effect) | | **Connection** | Solder pads | Bolt-on / Busbar mount |