The **MHO+73FCD-R** is a specific part number typically associated with **MHO+ series High-Frequency Crystal Oscillators** manufactured by companies like MtronPTI. These components are critical in providing precise timing signals for digital circuits. --- ### 1. Key Technical Specifications Based on the standard nomenclature for this series, the technical breakdown is as follows: | Feature | Specification | Description | |:---|:---|:---| | **Component Type** | XO (Crystal Oscillator) | A complete timing circuit (crystal + drive electronics). | | **Package Style** | 14-pin DIP (Full Size) | Metal can through-hole package for robust shielding. | | **Output Type** | CMOS / TTL | Compatible with standard logic gate voltage levels. | | **Frequency Range** | 1.0 MHz to 150.0 MHz | Depends on the specific factory calibration. | | **Supply Voltage** | 5.0V (Standard) | Standard operating voltage for the "MHO" series. | | **Stability** | ±50ppm to ±100ppm | Frequency variation over temperature/time. | --- ### 2. Part Number Deciphering While custom codes exist, the suffix "FCD-R" often breaks down into these parameters: * **F:** Usually denotes the stability class (e.g., ±25ppm or ±50ppm). * **C:** Operating temperature range (typically Commercial: 0°C to +70°C). * **D:** Duty Cycle requirement (typically 40/60% or 45/55%). * **-R:** Indicates **RoHS Compliance** (Lead-free construction). --- ### 3. Internal Components and Function The MHO+73FCD-R is an "active" component, meaning it requires power to function. Internally, it consists of: 1. **Quartz Crystal Slab:** Precisely cut to vibrate at a specific frequency. 2. **Oscillator IC:** An amplifier and feedback circuit that maintains the vibration. 3. **Bypass Capacitor:** Built-in to reduce electrical noise. 4. **Metal Housing:** Acts as a Faraday cage to protect against Electromagnetic Interference (EMI). --- ### 4. Typical Applications These oscillators are found in legacy hardware and high-reliability industrial systems: * **Telecommunications:** Base stations and switching equipment. * **Microprocessor Clocks:** Providing the "heartbeat" for CPUs. * **Test & Measurement:** Oscilloscopes and frequency counters. * **Industrial Control:** PLC (Programmable Logic Controller) timing.