The **NCC5003JBGP** is a specific part number belonging to a series of **NTC (Negative Temperature Coefficient) Thermistors**. These components are primarily used for temperature sensing, compensation, and protection in electronic circuits. Below is a detailed breakdown of the technical aspects of this component. --- ### 1. Technical Specifications The part number follows a standard coding convention used by manufacturers like **SEMITEC** (often associated with this series). | Feature | Specification / Description | | :--- | :--- | | **Component Type** | NTC Thermistor | | **Resistance at 25°C** | 50k $\Omega$ (indicated by "5003") | | **Tolerance** | ±5% (indicated by "J") | | **Package/Form Factor** | Surface Mount (SMD) - Typically 0805 or 1608 metric | | **B-Constant** | Defined by the "BGP" suffix (Determines the sensitivity curve) | | **Operating Temperature** | Generally -40°C to +125°C | --- ### 2. Functional Characteristics The "NTC" designation means that as the **temperature increases, the electrical resistance decreases**. * **Sensitivity:** High sensitivity to small changes in temperature. * **Stability:** Designed for long-term stability in power management circuits. * **Response Time:** Due to its small surface-mount size, it has a very fast thermal response time. --- ### 3. Applications The NCC5003JBGP is commonly found in high-density electronic assemblies: 1. **Battery Packs:** Monitoring cell temperature during charging/discharging to prevent thermal runaway. 2. **LCD Displays:** Temperature compensation for contrast and brightness levels. 3. **CPU/GPU Thermal Sensing:** Placed near heat-generating components to trigger cooling fans or thermal throttling. 4. **Mobile Devices:** Protecting internal circuitry from overheating in smartphones and tablets. --- ### 4. Part Number Breakdown Understanding the nomenclature helps in identifying equivalent parts: * **NCC:** Series identifier (NTC Chip). * **500:** The first two significant digits of resistance (50). * **3:** The multiplier ($10^3$). So, $50 \times 1000 = 50,000 \Omega$ (50k). * **J:** Resistance tolerance code (±5%). * **BGP:** Material characteristic code (defines the B-value/Resistance-Temperature curve). ---