The **MHO+28FCD-R** is a specific part number typically associated with **MHO+ Series** high-performance, high-voltage DC-DC converters or power modules. These components are often used in specialized industrial, aerospace, or military applications where power density and reliability are critical. --- ### 1. Component Overview Based on standard nomenclature for these types of power modules (common in brands like Interpoint/Crane or similar high-reliability manufacturers), the technical specifications can be broken down as follows: | Parameter | Specification (Typical) | | :--- | :--- | | **Input Voltage** | 28V DC (Nominal) | | **Output Type** | Dual or Triple Output (Depending on full suffix) | | **Isolation** | Fully Isolated | | **Package Style** | Hermetically Sealed Metal Case | | **Compliance** | MIL-STD-461, MIL-STD-704, MIL-PRF-38534 | --- ### 2. Breakdown of the Part Number The alphanumeric code provides specific details about the component's internal design and testing standards: * **MHO+**: Represents the product series (High-efficiency, 15-30W class converters). * **28**: The nominal input voltage (28 Volts DC), which is the standard for aircraft and defense vehicles. * **F**: Often denotes the output voltage or configuration (e.g., 15V or a specific dual combination). * **C**: Temperature grade/Case style (Commonly indicates a "Case" mount or a specific temperature range). * **D**: Dual Output configuration (Positive and Negative rails). * **-R**: Environmental Screening/Reliability (Usually indicates a Radiation Hardened or High-Reliability screening level). --- ### 3. Key Electronic Features 1. **Magnetic Feedback**: Uses a magnetic coupling rather than optoisolators to ensure long-term stability and radiation resistance. 2. **Internal Filtering**: Includes built-in LC filters to minimize input/output ripple and noise. 3. **Protection Circuits**: * **Short Circuit Protection**: Indefinite protection with auto-recovery. * **Under-voltage Lockout**: Prevents the unit from operating during low-power "brownout" conditions. 4. **Efficiency**: Typically ranges between **75% to 85%**, which is high for isolated high-reliability modules. --- ### 4. Typical Applications Due to its rugged construction and specific 28V input, this part is found in: * **Avionics**: Flight control systems and cockpit displays. * **Space Systems**: Satellite power distribution (if "R" grade indicates radiation hardening). * **Military Ground Vehicles**: Communication and radar equipment. ---