Based on your query, the part number **MHO+44FCD-R** refers to a high-precision **Crystal Oscillator** (often specifically a TCXO or a specialized Clock Oscillator) manufactured by **MtronPTI**. These components are critical in electronics for generating a stable frequency signal used as a "heartbeat" for digital circuits. --- ### 1. General Specifications The "MHO" series typically represents a specific package type and stability class. Below is a breakdown of the likely technical characteristics for this part: | Feature | Description | | :--- | :--- | | **Component Type** | Crystal Oscillator (XO) / TCXO | | **Package Type** | 14-pin DIP (Dual In-line Package) or 4-pin Full-size metal can | | **Output Type** | HCMOS/TTL Compatible | | **Voltage Supply** | Usually 3.3V or 5.0V (Standard for the MHO series) | | **Operating Temp** | Typically -40°C to +85°C (Industrial Grade) | | **RoHS Status** | Compliant (Indicated by the "-R" suffix) | ### 2. Part Number Breakdown While manufacturer coding can vary slightly by year, the suffix string `+44FCD-R` generally breaks down as follows: * **MHO:** Series designation (Metal thru-hole package). * **44:** Often denotes the supply voltage and frequency stability (e.g., ±50ppm or ±100ppm). * **F:** Frequency stability/Temperature range indicator. * **CD:** Output load and symmetry specifications (e.g., 45/55% duty cycle). * **-R:** **RoHS Compliant.** This indicates the part is lead-free and meets environmental safety standards. ### 3. Key Electronic Functions The MHO+44FCD-R performs three primary roles in a circuit: 1. **Frequency Generation:** It provides a steady square wave (clock signal) to microprocessors or FPGAs. 2. **Timing Accuracy:** Unlike a simple crystal, this "oscillator" includes internal circuitry (transistors/capacitors) to ensure the crystal vibrates at the correct frequency without external loading components. 3. **Signal Conditioning:** The "FCD" designation ensures the output signal has a specific "Duty Cycle," meaning the timing of the "High" state vs the "Low" state is balanced for digital logic. ### 4. Common Applications * **Telecommunications:** Base stations and networking hardware. * **Industrial Control:** Timing for PLC (Programmable Logic Controllers). * **Legacy Computing:** Older motherboard designs or specialized industrial computers that require through-hole metal can oscillators. * **Test Equipment:** Oscilloscopes and signal generators. --- ### Implementation Example If you were integrating this into a circuit, the pinout typically follows the standard 14-pin DIP layout (where only 4 pins are actually present): ```c Pin 1: NC (No Connection) or Tri-state Control Pin 7: Ground (GND) Pin 8: Output Signal (Frequency) Pin 14: Vcc (Supply Voltage) ```