The **MHO+35FCD-R** is a specific part number typically associated with **MHO+ series High-Precision Crystal Oscillators** manufactured by companies like MtronPTI. These components are critical for providing a stable clock signal in electronic circuits. --- ### 1. Part Number Breakdown (Estimated) While naming conventions can vary slightly by manufacturer, the code generally breaks down as follows: | Segment | Meaning | Description | | :--- | :--- | :--- | | **MHO+** | Series Name | High-reliability, 14-pin or 8-pin DIP compatible crystal oscillator. | | **3** | Voltage Supply | Usually indicates **3.3V** operation (sometimes 5V depending on the specific datasheet). | | **5** | Stability/Temp | Represents frequency stability (e.g., ±50ppm) over a specific temperature range. | | **F** | Temperature Range | Often denotes Industrial Range (**-40°C to +85°C**). | | **CD** | Output Type | CMOS / TTL compatible output levels. | | **R** | RoHS Compliant | Indicates the part meets lead-free environmental standards. | --- ### 2. Key Technical Specifications These oscillators are designed for high-performance timing. Below are the typical technical characteristics for this class of component: * **Frequency Range:** Typically available from 1.000 MHz to 150.000 MHz (The specific frequency is usually printed on the physical casing). * **Package Type:** Through-hole DIP (Dual In-line Package), often in a 4-pin metal "half-size" or "full-size" can. * **Output Load:** 15pF to 50pF (standard for CMOS/TTL). * **Duty Cycle:** 40/60% or 45/55% symmetry. * **Rise/Fall Time:** Fast switching speeds (typically < 5ns) to ensure signal integrity. --- ### 3. Functional Pinout For a standard 4-pin oscillator package (which the MHO+ series often uses), the pin configuration is usually: | Pin Number | Function | Description | | :--- | :--- | :--- | | **1** | NC / Tri-state | No connection or Output Enable/Disable control. | | **2** | GND | Circuit ground. | | **3** | Output | The generated square wave clock signal. | | **4** | Vcc | Positive power supply (3.3V or 5V). | --- ### 4. Common Applications Due to its high precision and rugged metal casing, the MHO+35FCD-R is commonly found in: 1. **Telecommunications:** Base stations and switching equipment. 2. **Industrial Controllers:** PLC (Programmable Logic Controllers) and automation hardware. 3. **Embedded Systems:** Microprocessor clocking where high stability is required. 4. **Test & Measurement:** Oscilloscopes and signal generators.