The **MHO+28FGG-R** is a specific part number typically associated with **MHO+ series High-Frequency Crystal Oscillators** manufactured by **MtronPTI**. These components are critical in electronics for generating precise timing signals. ### 1. Component Overview The MHO+ series consists of temperature-compensated or high-stability clock oscillators designed for aerospace, defense, and high-reliability industrial applications. | Feature | Description | | :--- | :--- | | **Component Type** | Crystal Oscillator (XO) | | **Package Style** | 14-pin DIP (Dual In-line Package) or 4-pin compatible | | **Output Type** | CMOS / TTL | | **Common Frequency** | Usually customized (e.g., 10MHz, 20MHz, etc.) | | **Voltage Supply** | Typically 5.0V or 3.3V (indicated by suffix) | --- ### 2. Breakdown of Part Numbering (Typical) While MtronPTI part numbers can be highly specific, the coding generally follows this structure: * **MHO+**: The Series name (Metal-can High-speed Oscillator). * **28**: Usually refers to the supply voltage and operating temperature range (e.g., 5.0V, -40°C to +85°C). * **F**: Often denotes the frequency stability (e.g., ±100ppm, ±50ppm, or ±25ppm). * **GG**: Packaging or specific internal circuitry modifications (e.g., Gold plated pins). * **-R**: Indicates **RoHS Compliance** (Lead-free). --- ### 3. Technical Specifications These parts are known for their ruggedness and are often used where standard commercial oscillators would fail. 1. **Frequency Range:** Can range from 1.000 MHz to over 100.000 MHz. 2. **Waveform:** Square wave output compatible with high-speed digital logic. 3. **Hermetic Sealing:** The metal "can" is resistance-welded to protect the quartz crystal from moisture and oxidation. 4. **Pinout Configuration:** * **Pin 1:** NC (No Connection) or Tri-state Control. * **Pin 7:** Case Ground. * **Pin 8:** Output. * **Pin 14:** Vcc (Supply Voltage). --- ### 4. Applications The MHO+28FGG-R is primarily found in: * **Military Communications:** Secure radio and signal processing. * **Avionics:** Flight control systems and navigation. * **Legacy Computing:** Industrial motherboards requiring through-hole DIP components. * **Test Equipment:** Oscilloscopes and signal generators. ---