The **MHO+15TAAD-R** is a high-performance **Crystal Oscillator** manufactured by MtronPTI. This specific component belongs to the MHO series, which are known for their high reliability and are often used in military, aerospace, and critical industrial applications. --- ## 1. Technical Specifications Below is a breakdown of the core technical parameters for this specific part number: | Parameter | Specification | | :--- | :--- | | **Component Type** | XO (Crystal Oscillator) | | **Package / Case** | 14-pin DIP (Thru-Hole) | | **Output Type** | CMOS / TTL Compatible | | **Supply Voltage ($V_{cc}$)** | 5.0 VDC | | **Frequency Stability** | ±100 ppm (standard for this series) | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | | **RoHS Status** | Compliant (indicated by the -R suffix) | --- ## 2. Part Number Breakdown (Nomenclature) Understanding the alphanumeric code helps identify the specific features of the component: * **MHO**: Series identifier (14-pin DIP, 5.0V Crystal Oscillator). * **+**: Indicates a specific variation in lead tension or plating (often related to environmental ruggedness). * **15**: Internal code for specific frequency stability or load capacitance settings. * **T**: Specifies the operating temperature range (T usually denotes -40°C to +85°C). * **AA**: Internal factory codes for output symmetry and pull-range (if applicable). * **D**: Tri-state enable/disable function (allows the output to be disconnected electronically). * **-R**: RoHS Compliant (Lead-free). --- ## 3. Key Features and Applications The MHO+ series is designed for environments where standard surface-mount components might not be ideal due to mechanical stress or legacy board designs. ### Features * **Tri-state Output:** Pin 1 can be used to enable or disable the oscillation output, which is useful for testing or power saving. * **Hermetically Sealed:** The metal "DIP" package is vacuum-sealed to protect the quartz crystal from humidity and contaminants. * **High Drive Capability:** Capable of driving multiple CMOS or TTL loads simultaneously. ### Common Applications * **Military Communications:** Ruggedized radio and data links. * **Industrial Controllers:** PLC systems and heavy machinery timing. * **Legacy Computing:** Replacement parts for older server motherboards or embedded systems using 14-pin DIP sockets. * **Aerospace:** Low-orbit satellite telemetry or ground control stations. --- ## 4. Typical Pin Configuration (14-Pin DIP) Even though the package has 14 pins, usually only 4 are electrically connected: | Pin Number | Function | Description | | :--- | :--- | :--- | | **1** | E/D or NC | Tri-state Control (High = Enable, Low = High Impedance) | | **7** | GND | Ground / Case Connection | | **8** | Output | Frequency Output Signal | | **14** | Vcc | +5.0V Power Supply |