The **MHO+55FAAG-R** is a specific part number belonging to a series of **Crystal Oscillators**, typically manufactured by companies like MtronPTI. These components are used to generate a precise clock frequency for electronic circuits. Below is a breakdown of the electronic characteristics and specifications associated with this part. ### 1. Component Overview The MHO series represents high-reliability, metal-can (DIP) packaged crystal oscillators. These are "active" components, meaning they require a power supply to output a square wave frequency. | Feature | Specification (Typical for MHO Series) | | :--- | :--- | | **Package Type** | 14-pin DIP (Standard rectangular metal package) | | **Output Type** | HCMOS / TTL Compatible | | **Supply Voltage** | Usually 5.0V (Standard for MHO series) | | **Operating Temp** | -40°C to +85°C (Industrial Grade) | | **Frequency Stability** | Generally ±50ppm or ±100ppm | --- ### 2. Part Number Decoder While full datasheets are required for exact verification, the suffix **"55FAAG-R"** breaks down into specific parameters: * **MHO:** Series designation (Metal Half-size or Full-size Oscillator). * **55:** Often indicates the voltage or stability class (e.g., 5.0V supply). * **F:** Usually denotes the frequency stability (e.g., ±100ppm). * **AA:** Often refers to the operating temperature range (0 to 70°C or -40 to +85°C). * **G:** May indicate the output symmetry (Duty Cycle) or a specific pin configuration (e.g., Pin 1 No Connect). * **-R:** RoHS Compliant (Lead-free). --- ### 3. Pin Configuration For a standard 14-pin DIP package (though only 4 pins are usually present at the corners), the layout is typically: | Pin Number | Function | Description | | :--- | :--- | :--- | | **1** | NC or E/D | No Connection or Output Enable/Disable | | **7** | GND | Circuit Ground | | **8** | Output | The generated clock signal (Square Wave) | | **14** | Vcc | Positive Supply Voltage (+5.0V) | --- ### 4. Common Applications These oscillators are used in "legacy" or "industrial" electronics where surface-mount technology (SMT) is not used, or where high shielding (provided by the metal case) is required. * **Microprocessor Clocks:** Providing the base timing for CPUs. * **Networking Gear:** Switches and routers requiring stable timing. * **Industrial Controllers:** PLC units and automation hardware. * **Embedded Systems:** Older or robust development boards. ---