The part number **RTT-10V222MJHTQ-R5** refers to a high-precision surface-mount resistor, likely manufactured by **RALEC** (as indicated by the "RTT" series prefix). These components are commonly used in automotive and high-reliability industrial applications. Below is a detailed breakdown of the electronic specifications and part number decoding. --- ### 1. Specification Overview | Parameter | Specification | | :--- | :--- | | **Component Type** | Thick Film Chip Resistor | | **Package / Case** | 0805 (2012 Metric) | | **Resistance Value** | 2.2 kΩ (2200 Ohms) | | **Tolerance** | ±5% (J) | | **Temperature Coefficient** | ±200 ppm/°C (Typical for M-code) | | **Standard Compliance** | AEC-Q200 (Automotive Grade) | --- ### 2. Part Number Decoding The alphanumeric string is structured to define the physical and electrical characteristics of the resistor: | Segment | Meaning | Description | | :--- | :--- | :--- | | **RTT** | Series | Thick Film Chip Resistor (Standard/Automotive) | | **10** | Size Code | 0805 Imperial (2.0mm x 1.25mm) | | **V** | Feature | Anti-Sulfuration or High Voltage (Variant dependent) | | **222** | Resistance | 3-digit code: $22 \times 10^2 = 2200 \Omega$ (2.2k) | | **M** | Temp. Coeff | $\pm 200$ ppm/°C | | **J** | Tolerance | $\pm 5\%$ | | **H** | Rating | High Power or Specific Wattage rating | | **TQ** | Packaging | Paper Tape (7" Reel / 5k pcs) | | **R5** | Special | Lead-free / RoHS Compliant / Specific Revision | --- ### 3. Key Features * **AEC-Q200 Qualified:** This indicates the part has passed rigorous stress testing for use in automotive environments (vibration, thermal shock, moisture resistance). * **Thick Film Technology:** Provides a cost-effective solution with high stability for general-purpose sensing and current limiting. * **Compact Footprint:** The 0805 size is small enough for dense PCBs but large enough for easy automated pick-and-place handling. --- ### 4. Typical Applications * **Automotive Electronics:** Engine control units (ECU), lighting, and infotainment systems. * **Industrial Equipment:** Power supplies and sensor interfaces. * **Consumer Electronics:** General circuit protection and signal conditioning.