The **KTS-6D-R** is a specific electronic component primarily identified as a **Positive Temperature Coefficient (PTC) Thermistor**, commonly used in the degaussing circuits of CRT (Cathode Ray Tube) monitors and televisions, or as a motor starter/overload protector in refrigeration. Below is a detailed breakdown of its electronic characteristics and technical specifications. --- ### 1. Technical Specifications The KTS-6D-R is designed to handle high-surge currents and then transition to a high-resistance state to limit current flow. | Parameter | Typical Value / Range | | :--- | :--- | | **Component Type** | PTC Thermistor (Degaussing / Starting) | | **Rated Voltage** | 220V - 270V AC | | **Resistance (at 25°C)** | 6.0 $\Omega$ (indicated by the '6' in the model) | | **Tolerance** | ±20% | | **Operating Temp** | -10°C to +85°C | | **Application** | Degaussing / Compressor Start | --- ### 2. Physical Construction The device typically consists of a ceramic disc housed in a flame-retardant plastic or phenolic casing. * **Internal Material:** Doped Barium Titanate ($\text{BaTiO}_3$) ceramic. * **Terminals:** Usually features 2 or 3 pins for PCB mounting. * **Housing:** Rectangular or cylindrical black plastic shell designed to withstand high temperatures generated during operation. --- ### 3. Electronic Functionality The "D-R" suffix often indicates specific resistance-temperature curves or physical mounting styles. Its operation follows these steps: 1. **Low Resistance State:** At room temperature, the device has a low resistance (approx. 6 ohms), allowing a large surge of current to pass through. 2. **Self-Heating:** As current flows, the component heats up rapidly due to the Joule effect ($P = I^2R$). 3. **Resistance Jump:** Once it reaches its "Curie Temperature," the resistance increases exponentially (becoming several thousand ohms). 4. **Steady State:** It maintains a very small "leakage" current to stay hot and keep the resistance high until power is removed. --- ### 4. Common Applications * **CRT Degaussing:** It provides the initial burst of AC current to the degaussing coil to remove residual magnetism from the shadow mask, then quickly shuts off the current. * **Motor Starting:** In small compressors (like refrigerators), it powers the "start winding" momentarily and then disconnects it once the motor is up to speed. ---