The **MHO+71TAAG-R** is a high-precision, industrial-grade crystal oscillator. Specifically, it belongs to the **MHO+** series produced by **MtronPTI**, designed to provide stable timing signals for telecommunications, networking, and industrial instrumentation. --- ## 1. Technical Specifications Below are the primary electrical and physical characteristics of this component: | Parameter | Specification | | :--- | :--- | | **Component Type** | XO (Crystal Oscillator) | | **Output Type** | HCMOS / TTL Compatible | | **Frequency Range** | Typically 1.000 MHz to 100.000 MHz (Model specific) | | **Operating Voltage** | 5.0V DC | | **Frequency Stability** | ±100 ppm (Standard for 'A' rating) | | **Operating Temp Range** | -40°C to +85°C (Industrial Grade) | | **Package Style** | 14-pin DIP (Half-size or Full-size compatible footprint) | | **RoHS Status** | Compliant (indicated by the 'R' suffix) | --- ## 2. Part Number Breakdown (Nomenclature) Understanding the alphanumeric code helps identify the specific features: * **MHO+**: The series identifier (Clock Oscillator, 5.0V). * **7**: Indicates the package style (usually 4-pin or 14-pin DIP footprint). * **1**: Denotes the voltage/logic type (HCMOS/TTL). * **T**: Tri-state Enable/Disable function (allows the output to be turned off for testing or power saving). * **AA**: Represents the Frequency Stability and Temperature range. * **G**: Symmetry/Duty Cycle specification (typically 40/60%). * **-R**: RoHS Compliant (Lead-free). --- ## 3. Key Features & Applications ### Key Features * **Tight Stability:** Maintains frequency accuracy across a wide temperature range. * **Hermetically Sealed:** The metal package protects the quartz crystal from environmental moisture and mechanical shock. * **Tri-state Function:** Pin 1 can be used to high-impedance the output, which is useful for board-level testing. ### Common Applications 1. **Telecommunications:** Base stations and switching equipment. 2. **Industrial Controls:** Embedded systems requiring a reliable clock source. 3. **Networking:** Ethernet switches and routers. 4. **Legacy Systems:** Often used as a replacement part for older 5V logic timing circuits. --- ## 4. Connection Diagram (Typical) The device usually follows a standard 4-pin configuration within its DIP footprint: ```text Pin 1: Tri-state (Enable/Disable) Pin 7: Ground (Case) Pin 8: Output (Clock Signal) Pin 14: Vcc (+5.0V) ```