The **MHO+55FAD-R** is a specific series of high-precision crystal oscillators manufactured by **MtronPTI**. These components are widely used in telecommunications, networking, and industrial applications where timing and frequency stability are critical. ### 1. Component Overview The MHO series typically refers to **Crystal Clock Oscillators** in a Half-Size (8-pin) DIP (Dual In-line Package) metal enclosure. These are active components that provide a stable clock signal for digital circuits. ### 2. Technical Specifications Based on the standard nomenclature for the MHO series, here are the likely technical parameters: | Feature | Specification | | :--- | :--- | | **Output Type** | CMOS/TTL Compatible | | **Package Style** | 8-pin DIP (Metal, Half-size) | | **Input Voltage (Vcc)** | +5.0 VDC (Common for the "55" designation) | | **Operating Temp** | -40°C to +85°C (Industrial Grade) | | **Frequency Stability** | Typically ±25ppm to ±100ppm | | **RoHS Status** | Compliant (Indicated by the "R" suffix) | --- ### 3. Pin Configuration Since this is a standard 8-pin DIP half-size oscillator, the pinout follows a standard industry pattern: | Pin Number | Function | Description | | :--- | :--- | :--- | | **Pin 1** | N/C or Tri-state | No connection or Output Enable/Disable | | **Pin 4** | GND | Circuit Ground | | **Pin 5** | Output | The generated clock frequency signal | | **Pin 8** | +Vcc | Power Supply (+5V) | --- ### 4. Key Features & Applications * **High Stability:** Designed to maintain frequency precision despite temperature fluctuations. * **Hermetically Sealed:** The metal package provides excellent EMI shielding and protects the quartz crystal from environmental humidity. * **Through-Hole Mounting:** The DIP package is ideal for robust industrial PCBS or prototyping on breadboards. **Common Applications:** * Microprocessor and DSP clocks. * Ethernet and Network Switches. * Industrial Control Systems. * Embedded systems requiring a 5V logic level. --- ### 5. Deciphering the Part Number * **MHO:** Series prefix (MtronPTI High-reliability Oscillator). * **+:** Often indicates RoHS compliance or a specific revision. * **55:** Typically represents the voltage (5.0V) and stability class. * **F:** Can represent the duty cycle (e.g., 40/60% or 45/55%). * **A:** Temperature range code. * **D:** Output type (CMOS). * **R:** RoHS compliant.