The **MHO+25TAD-R** is a high-performance **Crystal Oscillator** typically used in industrial and telecommunications applications. It belongs to the MHO series manufactured by companies like MtronPTI. --- ### 1. Key Technical Specifications The part number indicates specific characteristics regarding frequency, stability, and packaging. | Feature | Specification | | :--- | :--- | | **Component Type** | XO (Crystal Oscillator) | | **Package Style** | 14-pin DIP (Full Size) / Through-Hole | | **Supply Voltage ($V_{cc}$)** | 5.0 VDC (Standard for MHO series) | | **Output Type** | HCMOS/TTL Compatible | | **Frequency Stability** | ±100 ppm (Standard) to ±25 ppm (Variant dependent) | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | | **RoHS Compliance** | "R" suffix indicates Lead-Free / RoHS Compliant | --- ### 2. Pin Configuration (14-pin DIP) Though it uses a 14-pin footprint, only four pins are typically functional: | Pin Number | Function | Description | | :--- | :--- | :--- | | **1** | N/C or Tri-State | No connection or Output Enable/Disable | | **7** | GND | Circuit and Case Ground | | **8** | Output | The generated clock signal | | **14** | $V_{cc}$ | +5.0V Power Supply | --- ### 3. Electronic Characteristics * **A-Series Designation:** The "A" in the part number often signifies a specific frequency stability or a tightened symmetry (duty cycle) requirement, usually 45/55%. * **Drive Capability:** These oscillators are designed to drive multiple gates (typically up to 10 TTL loads or 15pF - 50pF CMOS loads). * **Start-up Time:** Generally features a fast start-up time (<10ms) to ensure the system clock is stable immediately after power-on. --- ### 4. Common Applications Due to its robust 14-pin DIP metal casing, this part is found in: 1. **Legacy Computing:** Motherboards and industrial controllers. 2. **Telecommunications:** Network timing and synchronization. 3. **Test Equipment:** Signal generators and oscilloscopes. 4. **Embedded Systems:** Providing a master clock for Microcontrollers or FPGAs. ---