The **AIAS-03-R10K** is a specific electronic component belonging to the family of **Negative Temperature Coefficient (NTC) Thermistors**. These are thermal resistors whose resistance decreases as the temperature increases. Below is a detailed breakdown of its electronic characteristics and specifications. --- ### 1. General Specifications | Parameter | Value / Description | | :--- | :--- | | **Component Type** | NTC Thermistor | | **Resistance at 25°C ($R_{25}$)** | $10\text{ k}\Omega$ | | **Tolerance** | $\pm 10\%$ (Standard for "K" suffix) | | **Mounting Type** | Through-hole / Lead type | | **Application** | Temperature sensing, compensation, and control | --- ### 2. Key Electronic Properties #### A. The Resistance-Temperature (R-T) Relationship The AIAS-03-R10K operates based on the Steinhart-Hart equation. As the ambient temperature rises, the semi-conductive material within the thermistor allows for more charge carriers, causing the resistance to drop significantly. #### B. Beta Value ($\beta$) The "Beta" constant represents the slope of the resistance-temperature curve between two specific temperatures (usually 25°C and 50°C or 85°C). For a 10k thermistor in this series, the $\beta$ value typically ranges between **3435K and 3950K**, depending on the specific material mix. #### C. Power Dissipation and Thermal Constant * **Dissipation Constant:** This indicates how much power is required to raise the thermistor's temperature by 1°C through self-heating. * **Thermal Time Constant:** The time required for the thermistor to reach 63.2% of the difference between the initial and final body temperature. --- ### 3. Construction and Materials The "03" in the part number often refers to the physical size or series designator. * **Encapsulation:** Usually coated in an epoxy resin or glass to protect the ceramic element from moisture and mechanical stress. * **Leads:** Typically made of tin-plated copper or nickel alloy for easy soldering onto PCBs. --- ### 4. Common Circuit Application In most electronic designs, the AIAS-03-R10K is used in a **Voltage Divider** configuration to convert temperature changes into measurable voltage changes for a Microcontroller (MCU). ```cpp // Example: Converting ADC value to Resistance float Vout = ADC_value * (Vcc / 1023.0); float R_thermistor = R_fixed * (Vout / (Vcc - Vout)); ``` --- ### 5. Part Number Breakdown | Code | Meaning | | :--- | :--- | | **AIAS** | Series Prefix (Manufacturer specific) | | **03** | Physical size / Lead spacing | | **R** | Resistance designator | | **10K** | $10,000 \Omega$ at 25° Celsius |