The **MHO+78FBG-R** is a high-precision, high-frequency crystal oscillator, specifically part of the **MHO+** series manufactured by MtronPTI. These components are primarily used in high-reliability industrial and communication hardware. --- ### 1. Technical Specifications The part number indicates specific characteristics regarding its build and electrical performance: | Feature | Specification | | :--- | :--- | | **Component Type** | XO (Crystal Oscillator) | | **Package Style** | 14-pin DIP (Full size) / Through-hole | | **Frequency Range** | Typically 1.0 MHz to 150.0 MHz (Custom defined) | | **Supply Voltage** | 5.0V (Standard for the 78 series) | | **Output Type** | HCMOS/TTL Compatible | | **Stability** | ±100 ppm (Standard), but varies by sub-code | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | --- ### 2. Part Number Breakdown The nomenclature for MtronPTI oscillators generally follows this structure: * **MHO:** Identifies the product family (Full-size 14-pin DIP Metal Clock Oscillator). * **78:** Indicates the voltage and output compatibility (5V HCMOS/TTL). * **F:** Represents the stability/temperature coefficient. * **B:** Represents the operating temperature range (B usually signifies Industrial -40/+85°C). * **G:** Tri-state enable/disable function (Pin 1 is used to enable/disable the output). * **-R:** RoHS Compliant (Lead-free). --- ### 3. Key Electronic Characteristics * **Hermetic Sealing:** The metal package is resistance-welded to provide a vacuum or inert atmosphere for the quartz crystal, ensuring long-term frequency stability and protection against moisture. * **Tri-state Functionality:** The "G" suffix allows the output to be placed in a high-impedance state. This is useful for testing or for bus-oriented systems where multiple components share a line. * **Load Drive:** Typically capable of driving a 15pF to 50pF load, making it versatile for various PCB layouts. --- ### 4. Common Applications Due to its robust 14-pin DIP metal casing, this part is often found in: 1. **Legacy Industrial Control Systems:** Used where through-hole mounting is preferred for durability. 2. **Telecommunications:** Base stations and networking hardware. 3. **Test and Measurement:** Signal generators and frequency counters. 4. **Medical Equipment:** Devices requiring stable clocking over wide temperature fluctuations.