The part number **M5R73XHJ-R** corresponds to a specific high-performance **Crystal Oscillator** manufactured by **NDK (Nihon Dempa Kogyo)**. These components are critical for providing precise clock signals in electronic circuits. --- ### 1. Technical Specifications The following table highlights the core parameters typical for this series of surface-mount (SMD) oscillators: | Parameter | Specification (Typical) | | :--- | :--- | | **Component Type** | Crystal Oscillator (SPXO) | | **Package Size** | 7.0 x 5.0 mm (7050 size) | | **Output Type** | CMOS / TTL Compatible | | **Supply Voltage** | 3.3V (Standard for 'M5' series) | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | | **Frequency Stability** | ±50 ppm or better | | **RoHS Status** | Compliant (Lead-Free) | --- ### 2. Breakdown of the Part Number While NDK part numbering can be complex, the segments generally represent the following: * **M5**: Often designates the series or specific electrical characteristics (e.g., 3.3V supply). * **R**: Typically refers to the frequency stability or temperature range characteristics. * **73X**: Encodes the physical package dimensions and internal construction (7.0 x 5.0mm). * **HJ**: Internal factory code for specific frequency tuning or output specifications. * **-R**: Indicates the packaging format, usually **Tape & Reel** for automated assembly. --- ### 3. Key Features * **Low Jitter:** Designed to provide a clean, stable clock signal with minimal timing variations. * **High Reliability:** Built to withstand industrial environments, making it suitable for 24/7 operation. * **Compact Footprint:** The 7050 SMD package is a standard in the industry, allowing for easy integration into high-density PCBs. --- ### 4. Typical Applications These oscillators are found in various electronic systems where timing is critical: 1. **Networking Hardware:** Routers, switches, and base stations. 2. **Industrial Automation:** PLCs (Programmable Logic Controllers) and motor drives. 3. **Computing:** Motherboards and peripheral controllers. 4. **Measurement Equipment:** Digital oscilloscopes and signal generators. ---