The **MHO+72TFG-R** is a specific series classification for a **Crystal Clock Oscillator**, typically manufactured by companies like CTS Electronic Components (or similar specialized frequency control manufacturers). --- ## 1. Technical Specifications The "MHO" series generally refers to high-reliability, metal-can packaged oscillators. Below is a breakdown of the typical technical parameters for this part number: | Parameter | Specification | | :--- | :--- | | **Component Type** | Crystal Clock Oscillator (XO) | | **Package Style** | Full-Size 14-Pin DIP (Metal Can) | | **Output Type** | TTL / HCMOS Compatible | | **Supply Voltage (Vcc)** | +5.0 VDC (Standard for this series) | | **Frequency Stability** | ±100ppm, ±50ppm, or ±25ppm (Depending on exact sub-grade) | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | | **Mounting Type** | Through-Hole | --- ## 2. Part Number Breakdown While manufacturer codes vary slightly, the nomenclature usually follows this logic: 1. **MHO+**: Series designation (High-speed CMOS/TTL compatible). The "+" often indicates RoHS compliance (Lead-free). 2. **72**: Code for frequency stability and operating temperature range (e.g., ±50ppm over -40°C to +85°C). 3. **T**: Denotes the output type (TTL/HCMOS). 4. **FG**: Specific internal factory codes or packaging variations (Tube vs. Bulk). 5. **R**: Typically stands for **RoHS Compliant**. --- ## 3. Key Electronic Characteristics ### Frequency Generation The device contains a quartz crystal resonator and an oscillation circuit (integrated circuit) within the hermetically sealed metal package. This ensures a stable square-wave clock signal for digital circuits. ### Pin Configuration (Standard 14-Pin DIP Layout) Although it has a 14-pin footprint, usually only 4 pins are active: * **Pin 1:** NC (No Connect) or Tri-state Control. * **Pin 7:** Ground (Case). * **Pin 8:** Output Signal. * **Pin 14:** Supply Voltage (Vcc). ### Applications * Microprocessors and Microcontrollers. * Industrial Control Systems. * Legacy computing hardware. * Embedded systems requiring a stable 5V clock source. --- ## 4. Usage Considerations ```markdown - **Bypassing:** Always place a 0.01µF to 0.1µF ceramic capacitor between Vcc and Ground as close to the oscillator as possible to minimize noise. - **Termination:** If the trace to the load is long, use a series termination resistor (typically 22-47 ohms) to prevent signal reflection. - **Voltage:** Ensure the circuit provides a steady 5V; applying 3.3V to a 5V MHO series oscillator may result in failure to oscillate or unstable frequency. ```