Based on the technical nomenclature, the **MHO+18FCG-R** refers to a high-precision **TCXO (Temperature Compensated Crystal Oscillator)** or a high-end clock oscillator module typically manufactured by companies like **Mercury Electronic**. Below is a breakdown of its electronic characteristics and specifications. --- ### 1. Component Overview The MHO series represents a line of metal-can or high-reliability oscillators designed for stability across varying temperatures. The "FCG-R" suffix typically denotes specific frequency stability, output logic, and RoHS compliance. ### 2. Technical Specifications The following table outlines the general parameters for this class of electronic part: | Parameter | Specification (Typical) | | :--- | :--- | | **Package Type** | 14-pin DIP (Full Size) or 8-pin DIP (Half Size) Metal Can | | **Frequency Range** | Usually 1.0 MHz to 160 MHz (Specific to ordering) | | **Supply Voltage (Vcc)** | +3.3V or +5.0V DC | | **Output Logic** | HCMOS / TTL Compatible | | **Frequency Stability** | ±1.0ppm to ±5.0ppm (Temperature Dependent) | | **Operating Temp** | -30°C to +75°C or -40°C to +85°C | | **RoHS Status** | Compliant (-R suffix) | --- ### 3. Pin Configuration For the standard 14-pin "Full Size" metal package (where only 4 pins are used), the layout is generally: 1. **Pin 1 (N/C or E/D):** No Connection or Output Enable/Disable. 2. **Pin 7 (GND):** Case Ground and Circuit Ground. 3. **Pin 8 (Output):** The generated clock signal (Square Wave). 4. **Pin 14 (Vcc):** Positive Supply Voltage. --- ### 4. Key Features * **Temperature Compensation:** Unlike standard crystals, the MHO+ series contains internal circuitry to compensate for frequency drift caused by heat, ensuring a highly stable "heartbeat" for the circuit. * **Metal Shielding:** The metal housing provides excellent EMI (Electromagnetic Interference) shielding, protecting the internal quartz crystal from external noise. * **Reliability:** These are often used in legacy industrial equipment, networking hardware, and telecommunications due to their robust mechanical design. --- ### 5. Application Areas * **Telecommunications:** Base stations and switching hardware. * **Measurement:** Frequency counters and synthesizers. * **Computing:** High-stability clocking for industrial motherboards.