The **MHO+54TBD-R** is a specific part number for a **High-Precision Crystal Oscillator** (Clock Oscillator) manufactured by **MtronPTI**. These components are critical in electronics for providing a stable, reliable frequency reference. --- ### 1. Technical Specifications Breakdown The part number follows a specific nomenclature. Here is a breakdown of its primary characteristics: | Parameter | Specification | Description | | :--- | :--- | :--- | | **Component Type** | Crystal Oscillator (XO) | A self-contained timing device. | | **Package Style** | 14-pin DIP (Half-size) | Through-hole mounting, often metal-shielded. | | **Supply Voltage** | 5.0 V | Typical operating voltage for legacy and industrial systems. | | **Output Type** | TTL / HCMOS | Compatible with standard logic gate levels. | | **Frequency Stability** | ±50 ppm to ±100 ppm | Variations based on specific dash-suffixes (TBD specific). | | **Operating Temp** | -40°C to +85°C | Industrial grade temperature range. | --- ### 2. Physical Design and Pinout The "MHO" series typically utilizes a metal "Can" package which provides excellent EMI (Electromagnetic Interference) shielding. * **Pin 1:** NC (No Connection) or Tri-state Control (Enable/Disable). * **Pin 7:** Ground (Case Ground). * **Pin 8:** Output (The clock signal). * **Pin 14:** Vcc (+5V Supply). --- ### 3. Key Electronic Features 1. **HCMOS/TTL Compatibility:** It can drive multiple logic gates without signal degradation, making it versatile for both older TTL systems and modern CMOS circuits. 2. **Hermetic Sealing:** The metal package is vacuum-sealed or filled with nitrogen to prevent internal quartz oxidation, ensuring long-term frequency aging stability. 3. **Low Jitter:** Designed for timing-sensitive applications where "noise" in the clock signal must be minimized to prevent data errors. --- ### 4. Common Applications * **Microprocessor Clocks:** Providing the "heartbeat" for CPUs and Microcontrollers. * **Industrial Control:** Used in PLC (Programmable Logic Controllers) due to its high temperature tolerance. * **Networking Gear:** Timing for data transmission in modems and routers. * **Test & Measurement:** Internal reference for oscilloscopes and signal generators. --- ### 5. Identification Code Decoder * **MHO:** Series designation (Mtron Half-size Oscillator). * **5:** 5.0 Volt operation. * **4:** Stability/Symmetry indicator. * **TBD:** Internal manufacturing code or customer-specific frequency/tolerance tuning. * **-R:** RoHS Compliant (Lead-free).