Based on the part number provided, the **MHO+65FDD-R** refers to a high-precision **Crystal Oscillator** typically manufactured by **MtronPTI**. These components are used to generate a stable clock frequency for digital circuits, telecommunications, and industrial equipment. ### 1. Key Technical Specifications The alphanumeric code provides specific details about the component's architecture and performance characteristics: | Specification | Details | | :--- | :--- | | **Package Type** | 14-pin DIP (Dual In-line Package), often "Half-Size" or "Full-Size" metal can | | **Output Type** | CMOS / TTL Compatible | | **Supply Voltage** | Typically 5.0V (Standard for the MHO series) | | **Frequency Range** | Usually 1.000 MHz to 100.000 MHz (Specific frequency is usually printed on the top) | | **Stability** | Generally ±50ppm to ±100ppm (depending on the specific grade) | | **Operating Temp** | -40°C to +85°C (Industrial Grade) | | **RoHS Status** | The "-R" suffix indicates **RoHS Compliant** (Lead-free) | --- ### 2. Functional Description The MHO series is an **Active Oscillator**, meaning it contains both the quartz crystal and the necessary oscillation circuitry inside a hermetically sealed metal package. * **Internal Circuitry:** Includes a quartz resonator, a frequency-generating IC, and a bypass capacitor. * **Hermetic Seal:** The metal "can" is resistance-welded to protect the crystal from humidity and atmospheric interference, ensuring long-term frequency stability. * **Tri-state Function:** Many models in this series feature an "Enable/Disable" function on Pin 1, allowing the output to be turned off to save power. --- ### 3. Pin Configuration (Typical 14-Pin DIP) While it resides in a 14-pin footprint, usually only 4 pins are physically present or connected: | Pin Number | Function | Description | | :--- | :--- | :--- | | **1** | N/C or E/D | No Connection or Output Enable/Disable | | **7** | GND | Ground / Case Ground | | **8** | Output | The generated clock signal (Square Wave) | | **14** | Vcc | Positive Supply Voltage (+5.0V) | --- ### 4. Common Applications * **Microprocessors:** Providing the "heartbeat" for CPUs and Microcontrollers. * **Networking:** Clocking for Ethernet controllers and routers. * **Embedded Systems:** Industrial automation controllers. * **Legacy Systems:** Maintenance of older telecommunications hardware that requires 5V logic.