The part number **MHO+47TBD-R** refers to a high-precision **Crystal Oscillator** manufactured by **Mercury Electronic**. These components are essential for providing a stable clock signal in digital circuits. --- ### 1. Technical Specifications The code follows a specific nomenclature used by Mercury. Below is the breakdown of the technical parameters: | Parameter | Specification | Description | | :--- | :--- | :--- | | **Series** | MHO | Metal Half-Size (14-pin DIP compatible layout) | | **Supply Voltage** | + | Usually indicates 5.0V operation | | **Frequency Stability** | 47 | Denotes ±25ppm to ±50ppm (varies by datasheet revision) | | **Output Type** | T | TTL / HCMOS compatible output | | **Duty Cycle** | B | 40/60% to 45/55% symmetry | | **Operating Temp** | D | -40°C to +85°C (Industrial Grade) | | **RoHS Status** | -R | RoHS Compliant / Lead-Free | --- ### 2. Physical Characteristics The **MHO** series typically uses a "Half-Size" metal can package. * **Package Type:** Through-hole (DIP-8 footprint). * **Pins:** 4 active pins in a rectangular metal housing. * **Sealing:** Resistance welded for hermetic protection against humidity and aging. ### 3. Pin Configuration For a standard MHO (DIP-8/Half-size) oscillator: | Pin Number | Function | Description | | :--- | :--- | :--- | | **Pin 1** | NC or E/D | No Connection or Output Enable/Disable | | **Pin 4** | GND | Case Ground | | **Pin 5** | Output | Clock Signal Output | | **Pin 8** | Vdd | Power Supply (+5V) | --- ### 4. Common Applications Due to its industrial temperature rating and stable output, this part is commonly used in: * **Industrial Controllers:** PLC and automation hardware. * **Networking:** Modems and routers requiring stable timing. * **Legacy Computing:** Motherboards or embedded systems using 5V logic. * **Test Equipment:** Signal generators and measurement tools.