The **MHO373FCD-R** is a high-performance **Clock Oscillator** (Crystal Oscillator) manufactured by **MtronPTI**. It belongs to the MHO series, which is known for its reliability in industrial and communication applications. --- ## Technical Specifications The following table outlines the primary electrical and physical characteristics of the MHO373FCD-R: | Parameter | Specification | | :--- | :--- | | **Component Type** | Fixed Output Crystal Oscillator | | **Package Type** | 14-pin DIP (Dual In-line Package) - Full Size | | **Output Type** | CMOS / TTL Compatible | | **Supply Voltage ($V_{cc}$)** | 3.3 VDC | | **Frequency Range** | Typically 1.5 MHz to 155.52 MHz (Varies by sub-model) | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | | **Frequency Stability** | ±100 ppm (standard, may vary) | | **Pin Count** | 4 Active Pins (Standard DIP-14 layout) | --- ## Key Features ### 1. Robust Design The MHO series uses a hermetically sealed metal package. This provides excellent EMI (Electromagnetic Interference) shielding and protects the internal quartz crystal from environmental moisture and contaminants. ### 2. Tri-state Functionality The "F" in the part number often denotes **Tri-state (Enable/Disable)** functionality. This allows the output to be placed in a high-impedance state, reducing power consumption when the clock signal is not needed. ### 3. Through-Hole Mounting Unlike modern SMD (Surface Mount Device) components, the MHO373FCD-R uses through-hole pins. This makes it ideal for: * Legacy hardware repairs. * Prototyping on breadboards or perf-boards. * High-vibration environments where mechanical solder strength is critical. --- ## Pin Configuration (Typical DIP-14) Standard oscillator pinouts for this series usually follow this logic: | Pin Number | Function | Description | | :--- | :--- | :--- | | **1** | N/C or E/D | No Connection or Enable/Disable (Tri-state) | | **7** | GND | Ground | | **8** | Output | The generated clock signal | | **14** | $V_{cc}$ | Positive Supply Voltage (+3.3V) | --- ## Common Applications * **Networking:** Used in routers, switches, and modems for timing synchronization. * **Industrial Control:** Providing stable clock pulses for PLCs and microcontrollers. * **Legacy Computing:** Replacement parts for older motherboards and timing circuits that require 3.3V TTL logic.