The part number **MHO+17FGG-R** typically refers to a high-precision, oven-controlled, or temperature-compensated **Crystal Oscillator (XO)**, often associated with manufacturers like MtronPTI. These components are critical in timing circuits where frequency stability is paramount. --- ### 1. Component Specification Overview Below is a breakdown of the typical technical characteristics associated with this series: | Feature | Specification Details | | :--- | :--- | | **Component Type** | Crystal Oscillator (SMD Type) | | **Package Size** | 5.0 x 7.0 mm (standard 6-pad or 4-pad) | | **Frequency Stability** | Generally ±25ppm to ±100ppm (depending on grade) | | **Supply Voltage** | Typically 3.3V or 5.0V DC | | **Output Logic** | HCMOS / TTL Compatible | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | | **RoHS Status** | Compliant (indicated by the "-R" suffix) | --- ### 2. Part Number Breakdown (Nomenclature) While exact coding can vary by manufacturer, the string is generally decoded as follows: * **MHO:** Series identifier (often denoting High-Output or Metal-Hybrid construction). * **17:** Code for the supply voltage and specific package dimensions (e.g., 5x7mm, 3.3V). * **F:** Frequency stability code (often represents ±100ppm or similar). * **GG:** Temperature range and duty cycle configuration (e.g., 45/55% duty cycle). * **-R:** Indicates **RoHS Compliance** (Lead-free). --- ### 3. Key Electronic Functions 1. **Clock Generation:** Provides the primary "heartbeat" for microprocessors, FPGAs, and digital signal processors. 2. **Low Phase Jitter:** Engineered to minimize timing "noise," which is essential for high-speed data transmission. 3. **Tri-State Function:** Most models include an "Enable/Disable" pin (Pin 1), allowing the output to go into a high-impedance state to save power. --- ### 4. Typical Applications * **Networking:** Routers, switches, and fiber optic modules (SFP). * **Industrial:** Programmable Logic Controllers (PLCs) and automation sensors. * **Computing:** High-speed servers and data storage interfaces. * **Telecommunications:** Base stations and wireless backhaul equipment. --- ### 5. Schematic Symbol & Footprint When designing a PCB for this part, ensure the following pinout configuration (Standard 6-pad layout): ```text Pad 1: Tri-state (Enable/Disable) Pad 2: No Connect (NC) Pad 3: Ground (GND) Pad 4: Output (Frequency) Pad 5: No Connect (NC) Pad 6: Supply Voltage (Vdd) ```