The **WT-336-R** is an electronic component primarily classified as a **Precision Trimmer Potentiometer**. It is designed for fine-tuning resistance values within a circuit, typically used in industrial controls, power supplies, and instrumentation. ### 1. Technical Specifications Below are the typical electronic characteristics for the WT-336-R series: | Feature | Specification | | :--- | :--- | | **Component Type** | Cermet Trimming Potentiometer | | **Adjustment Type** | Top Adjust (Single-Turn) | | **Standard Resistance Range** | 10 $\Omega$ to 2 M$\Omega$ | | **Power Rating** | 0.5W at 70°C | | **Tolerance** | ±10% (Standard) | | **Voltage Rating** | 300V Max | | **Temperature Coefficient** | ±100 ppm/°C | | **Mounting Type** | Through-Hole (PCB) | --- ### 2. Core Electronic Parts & Construction The device is composed of several internal elements that allow for high-precision resistance adjustment: 1. **Cermet Element:** The resistive track is made of "Cermet" (a Ceramic-Metal composite). This material provides better stability and lower temperature coefficients than standard carbon tracks. 2. **Wiper:** A metal contact point that moves along the resistive track when the screw is turned, changing the output resistance. 3. **Terminal Pins:** Three gold-plated or tin-plated pins (usually in a triangular or linear layout) for PCB mounting. 4. **Housing:** A flame-retardant plastic or metal casing designed to withstand wave soldering and environmental contaminants. --- ### 3. Pin Configuration (Typical) The WT-336-R generally follows the standard three-pin potentiometer layout: * **Pin 1:** Fixed Terminal (Start of Resistance) * **Pin 2:** Wiper (Adjustable Output) * **Pin 3:** Fixed Terminal (End of Resistance) ```text [ 2 ] <-- Wiper / \ [ 1 ]-----[ 3 ] <-- Total Resistance ``` --- ### 4. Applications * **Voltage Dividers:** Used to calibrate output voltages in DC-DC converters. * **Signal Conditioning:** Adjusting gain in Operational Amplifier (Op-Amp) circuits. * **Sensor Calibration:** Fine-tuning the zero-point or sensitivity of environmental sensors.