The **YR1B412RCC** is a precision metal film resistor manufactured by TE Connectivity (under the Neohm brand). It is designed for applications where high stability, low noise, and tight tolerances are critical. --- ### 1. Technical Specifications The part number "YR1B412RCC" follows a specific coding structure that defines its electrical characteristics: | Parameter | Specification | Details | | :--- | :--- | :--- | | **Resistance Value** | 412 $\Omega$ | Identified by the "412R" code | | **Tolerance** | ±0.1% | High precision (indicated by the "B" code) | | **Power Rating** | 0.25 W (1/4 Watt) | Standard for through-hole signal resistors | | **Temperature Coefficient** | ±15 ppm/°C | Extremely low drift over temperature | | **Maximum Voltage** | 250V | Maximum operating voltage | | **Construction** | Metal Film | Provides better stability than carbon film | --- ### 2. Key Features and Construction * **Precision:** The 0.1% tolerance ensures that the actual resistance is between 411.588 $\Omega$ and 412.412 $\Omega$. * **Stability:** The metal film is deposited onto a high-grade ceramic body. This construction results in very low noise and high reliability under load. * **Coating:** Usually coated with multiple layers of epoxy resin to provide excellent mechanical and environmental protection. * **Termination:** Features thin-lead wires (usually tin-plated copper) suitable for soldering into through-hole PCBs. --- ### 3. Applications Due to its high precision and low temperature drift (15ppm), the YR1B412RCC is typically used in: 1. **Measurement Instrumentation:** Bridge circuits and precision scales. 2. **Medical Equipment:** Monitoring devices requiring stable signal processing. 3. **Audio Processing:** High-end audio circuitry where low thermal noise is required. 4. **Industrial Controls:** Feedback loops and sensor calibration. --- ### 4. Part Number Breakdown The code **YR1B412RCC** can be decoded as follows: | Code Segment | Meaning | | :--- | :--- | | **YR** | Series Name (Neohm Precision Metal Film) | | **1** | Power Rating (1 = 0.25W) | | **B** | Tolerance (B = ±0.1%) | | **412R** | Resistance Value (412 Ohms) | | **C** | Temperature Coefficient (C = ±15ppm/°C) | | **C** | Packaging (C = Boxed/Loose) |