The **MHO+34FBD-R** is a specific part number typically associated with **MHO+ Series** high-precision, temperature-compensated crystal oscillators (TCXOs) or clock oscillators manufactured by companies like **Mercury Electronic**. Below is a detailed breakdown of its electronic characteristics and specifications. --- ### 1. General Component Overview This component is an active crystal oscillator designed to provide a stable frequency reference for digital circuits. It is commonly used in applications requiring high reliability and low jitter. ### 2. Technical Specifications The part number string "MHO+34FBD-R" follows a specific nomenclature. While full datasheets may vary slightly by manufacturer version, the standard parameters are as follows: | Parameter | Specification (Typical) | | :--- | :--- | | **Type** | HCMOS/TTL Compatible Crystal Clock Oscillator | | **Input Voltage ($V_{dd}$)** | +3.3V or +5.0V (Standard is often 3.3V for '3' codes) | | **Frequency Stability** | ±25ppm to ±100ppm (Depending on grade) | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | | **Package Type** | 14-pin DIP (Full Size) or 8-pin DIP (Half Size) Metal Can | | **Output Waveform** | Square Wave (Square-wave CMOS) | | **RoHS Status** | Compliant (Indicated by "-R") | --- ### 3. Pin Configuration (14-pin DIP Equivalent) In these metal-can oscillators, only four pins are typically connected: 1. **Pin 1:** No Connect (NC) or Tri-state Control (Enable/Disable). 2. **Pin 7:** Ground (Case Ground). 3. **Pin 8:** Output (The generated frequency signal). 4. **Pin 14:** $V_{cc}$ / $V_{dd}$ (Power Supply). --- ### 4. Part Number Breakdown The suffix and prefix provide specific details about the component's build: * **MHO+**: Series name (Metal Hermetic Oscillator, often improved version). * **3**: Often signifies the operating voltage (e.g., 3.3V). * **4**: Represents the stability or temperature range code. * **FB**: Usually denotes the frequency range or output type (HCMOS). * **D**: Package style (DIP - Dual Inline Package). * **-R**: RoHS Compliant (Lead-free). --- ### 5. Common Applications * **Networking Hardware:** Routers, switches, and hubs. * **Industrial Control:** PLCs and automation timing. * **Legacy Computing:** Motherboards or embedded systems requiring a stable clock source in a through-hole format. * **Test & Measurement:** Oscilloscopes and signal generators. ---