The **MHO+51TAD-R** is a high-performance **Crystal Oscillator** manufactured by **MtronPTI**. It belongs to the MHO series, which are commonly used in industrial and communication applications requiring high stability and TTL/CMOS compatibility. --- ## 1. Technical Specifications Below are the primary electronic characteristics of the MHO+51TAD-R: | Parameter | Specification | | :--- | :--- | | **Component Type** | Crystal Oscillator (XO) | | **Frequency Range** | Typically 1.0 MHz to 66.7 MHz (Specific to exact sub-ordering) | | **Supply Voltage (Vcc)** | +5.0 VDC ± 10% | | **Output Type** | TTL / CMOS Compatible | | **Stability** | ±100 ppm (Standard, varies by specific grade) | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | | **Package Style** | 14-pin DIP (Full Size) - 4 Pins used | | **Duty Cycle** | 40/60% to 45/55% | --- ## 2. Pin Configuration (14-Pin DIP) Though it occupies a 14-pin footprint, only 4 pins are electrically active: 1. **Pin 1 (N/C or Tri-State):** Usually "No Connection" or used for Enable/Disable functions. 2. **Pin 7 (GND):** Case Ground / Negative Supply. 3. **Pin 8 (Output):** The clock signal output. 4. **Pin 14 (Vcc):** +5V Positive Supply. --- ## 3. Part Number Breakdown The suffix **"TAD-R"** provides specific information about its construction and compliance: * **T:** Usually denotes specific temperature stability or "Tight" symmetry. * **A:** Often refers to the operating temperature range (Industrial). * **D:** Denotes the specific package type (14-pin DIP style). * **-R:** Indicates **RoHS Compliance** (Lead-free). --- ## 4. Common Applications * **Legacy Computing:** Timing for microprocessors and microcontrollers. * **Industrial Control:** Clocking for PLCs and automation hardware. * **Networking:** Synchronizing data transmission in older telecommunication gear. * **Test Equipment:** Stable frequency reference for measurement tools. --- ## 5. Design Considerations * **Decoupling:** It is highly recommended to place a **0.01µF to 0.1µF ceramic capacitor** as close as possible to Pin 14 (Vcc) and Pin 7 (GND) to minimize noise. * **Load Capacitance:** The output is designed to drive a standard 15pF to 50pF load. Excessive load capacitance can degrade the rise/fall times of the clock signal.