The **MHO+44TGG-R** is a specific part number typically associated with **Full-Size (14-pin DIP) Crystal Clock Oscillators** manufactured by companies like MtronPTI. These components are critical for providing a precise, stable frequency for digital circuits. --- ## 1. Technical Specifications The alphanumeric code represents specific electrical and physical characteristics. Here is a breakdown of the typical specifications for this series: | Parameter | Specification | | :--- | :--- | | **Component Type** | Crystal Clock Oscillator (XO) | | **Package Style** | Full-Size (14-pin DIP compatible), Through-Hole | | **Frequency Range** | Typically 1.0 MHz to 100.0 MHz (Depends on specific sub-code) | | **Supply Voltage (Vcc)** | +5.0 VDC (Standard for MHO series) | | **Output Type** | HCMOS / TTL Compatible | | **Stability** | ±100 ppm (Standard) to ±25 ppm (High precision) | | **Operating Temp** | 0°C to +70°C (Commercial) or -40°C to +85°C (Industrial) | --- ## 2. Pin Configuration Even though the package is the size of a 14-pin DIP IC, it usually only utilizes four active pins located at the corners: | Pin Number | Function | Description | | :--- | :--- | :--- | | **Pin 1** | NC / Tri-state | No connection or Output Enable/Disable | | **Pin 7** | GND | Circuit Ground / Case Ground | | **Pin 8** | Output | The generated clock signal (Square Wave) | | **Pin 14** | Vcc | Power Supply (+5V) | --- ## 3. Key Features and Usage ### Features * **Hermetically Sealed:** The metal "can" package is resistance-welded to protect the quartz crystal from moisture and contaminants. * **Integrated Design:** Unlike a simple quartz crystal, this is an "active" component. It includes the crystal and the oscillation circuitry (capacitors/transistors) inside the metal housing. * **Low Jitter:** Designed to provide a clean clock edge for high-speed digital processing. ### Common Applications 1. **Microprocessors:** Providing the "heartbeat" or master clock for CPUs. 2. **Embedded Systems:** Timing for microcontrollers (MCUs) in industrial environments. 3. **Legacy Hardware:** Often found in older computing equipment or industrial controllers requiring 5V logic. --- ## 4. Part Number Breakdown (Generic) While manufacturers vary slightly, the "MHO" prefix generally follows this logic: * **MHO:** Series designation (Metal Hermetic Oscillator). * **4:** Voltage (often denotes 5V). * **4:** Stability code (e.g., ±50ppm or ±100ppm). * **T:** Temperature range (T = Extended or specific industrial range). * **GG:** Output type (HCMOS/TTL). * **R:** RoHS Compliant (Lead-free). ---