The **MHO+36TCD-R** is a specific model of a **Crystal Oscillator**, typically manufactured by companies like **Mercury Electronic**. It belongs to a class of high-precision timing components used to provide a stable clock signal for digital circuits. --- ### 1. Technical Specifications The part number follows a specific nomenclature that defines its electronic characteristics: | Feature | Specification | Description | | :--- | :--- | :--- | | **Component Type** | Crystal Oscillator (XO) | A complete circuit containing a quartz crystal and an oscillation IC. | | **Output Type** | HCMOS / TTL | Compatible with high-speed CMOS and standard TTL logic levels. | | **Package Style** | DIP-14 (Full size) | A 4-pin through-hole package (looks like a 14-pin IC but only has 4 active leads). | | **Supply Voltage** | 3.3V or 5.0V | Usually depends on the specific suffix, but standard MHO series supports these ranges. | | **Frequency Stability** | ±25ppm to ±100ppm | Indicates how much the frequency deviates due to temperature/aging. | --- ### 2. Internal Electronic Parts The MHO+36TCD-R is not a single component but an integrated module consisting of: * **Quartz Crystal Blank:** The "heart" of the device, precision-cut to vibrate at a specific frequency when voltage is applied. * **Oscillator IC:** An internal integrated circuit that provides the gain needed to maintain oscillation and buffers the output signal. * **Bypass Capacitor:** Internal surface-mount capacitors used to filter noise from the power supply. * **Varactor/Trimmer (Optional):** Some high-end models include internal components to fine-tune the frequency. --- ### 3. Pin Configuration (DIP-14 Style) Although the physical body is the size of a 14-pin DIP, only four pins are present: | Pin Number | Function | Description | | :--- | :--- | :--- | | **1** | NC / ED | No connection or Tri-state Enable/Disable control. | | **7** | GND | Circuit Ground. | | **8** | Output | The generated clock signal (Square Wave). | | **14** | Vdd | Positive Power Supply. | --- ### 4. Common Applications * **Microcontrollers:** Providing the external clock source for CPUs. * **Networking Gear:** Timing for Ethernet controllers and routers. * **Industrial Control:** Synchronizing data processing in PLC (Programmable Logic Controllers). * **Legacy Hardware:** Often found in older computing equipment due to the through-hole DIP format. --- ### 5. Part Number Breakdown (Typical) * **MHO:** Series designation (Metal Hermetic Oscillator). * **+:** Often indicates RoHS compliance (Lead-free). * **3:** Represents the voltage (e.g., 3.3V). * **6:** Represents the package size (Full size DIP). * **TCD:** Specific temperature range and stability code. * **R:** Tape and Reel or specific Revision code.