The **MHO+73TAAG-R** is a high-precision, industrial-grade **Crystal Oscillator** (specifically an XO - Crystal Oscillator). It is manufactured by **MtronPTI**, a company specializing in frequency control and spectrum control solutions. Below is a detailed breakdown of its electronic specifications and characteristics. --- ### 1. Technical Specifications The part number "MHO+73TAAG-R" follows a specific coding convention that defines its electrical behavior: | Parameter | Specification | | :--- | :--- | | **Component Type** | Fixed Frequency Crystal Oscillator (XO) | | **Package Style** | 14-pin DIP (Dual In-line Package) - Full Size | | **Supply Voltage ($V_{cc}$)** | 5.0 Volts DC | | **Output Type** | HCMOS / TTL Compatible | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | | **Frequency Stability** | ±100 ppm (standard for this series) | | **RoHS Compliance** | Yes ("-R" suffix indicates Lead-Free/RoHS compliant) | --- ### 2. Pin Configuration (14-pin DIP) Though it uses a 14-pin footprint, only four pins are typically active in this "Full Size" metal can package: | Pin Number | Function | Description | | :--- | :--- | :--- | | **1** | NC / Tri-state | No connection or Output Enable/Disable | | **7** | GND | Case Ground / Negative Supply | | **8** | Output | The generated clock signal (Square Wave) | | **14** | $V_{cc}$ | +5V Power Supply | --- ### 3. Key Features * **Metal Package:** The "MHO" series is housed in a hermetically sealed metal "Full Size" DIP package. This provides excellent EMI (Electromagnetic Interference) shielding. * **Through-Hole Mounting:** Designed for traditional PCB mounting or insertion into sockets, making it ideal for legacy industrial equipment. * **High Driving Capability:** The HCMOS/TTL output allows it to drive multiple loads (Fan-out) without signal degradation. * **Tri-state Functionality:** The "T" in the part number usually indicates a Tri-state (Enable/Disable) function on Pin 1, allowing the output to be high-impedance when not in use to save power. --- ### 4. Typical Applications This specific oscillator is commonly found in: 1. **Industrial Controllers:** PLC systems requiring stable timing in harsh temperatures. 2. **Legacy Computing:** Motherboards or expansion cards requiring a 5V clock source. 3. **Telecommunications:** Network switching gear and base stations. 4. **Test & Measurement:** Oscilloscopes and signal generators. --- ### 5. Identification Code Breakdown `MHO` + `7` `3` `T` `A` `A` `G` `-R` * **MHO:** MtronPTI Series (5.0V Full Size DIP) * **7:** Stability/Temperature code (often ±100ppm, -40 to +85°C) * **3:** Symmetry/Duty Cycle (typically 40/60%) * **T:** Tri-state Enable/Disable function * **AAG:** Specific frequency designator (The actual frequency is usually printed on the top of the metal can, e.g., 20.000 MHz) * **-R:** RoHS Compliant