The **MHO+74TBD-R** is a specific high-performance crystal oscillator manufactured by **MtronPTI**. It belongs to the MHO+ series, which is known for providing high-frequency stability in a compact, industry-standard package. --- ### ## 1. Technical Specifications The part number follows a specific nomenclature. Below is a breakdown of the technical characteristics typically associated with this model: | Parameter | Specification | | :--- | :--- | | **Component Type** | XO (Crystal Oscillator) | | **Logic Type** | HCMOS/TTL | | **Supply Voltage ($V_{dd}$)** | 5.0 VDC (Standard for MHO series) | | **Frequency Range** | Typically 1.0 MHz to 100 MHz (Part specific) | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | | **Package Style** | 14-pin DIP (Half-size or Full-size compatible) | | **RoHS Status** | Compliant (Indicated by "-R") | --- ### ## 2. Pin Configuration The MHO+ series usually utilizes a 4-pin connection within a 14-pin DIP footprint to ensure mechanical stability and heat dissipation. | Pin Number | Function | Description | | :--- | :--- | :--- | | **Pin 1** | N/C or E/D | No Connection or Output Enable/Disable | | **Pin 7** | GND | Case Ground / Negative Supply | | **Pin 8** | Output | Square Wave Output (HCMOS/TTL) | | **Pin 14** | $V_{cc}$ | +5.0V Positive Supply Voltage | --- ### ## 3. Key Features * **Tight Stability:** Designed for applications requiring low jitter and high frequency accuracy over a wide temperature range. * **Tri-state Output:** Often includes an Enable/Disable function on Pin 1, allowing the output to go into a high-impedance state for testing or power saving. * **Through-Hole Design:** The DIP package is ideal for robust industrial equipment where surface-mount components might be prone to mechanical stress. * **Hermetically Sealed:** The metal casing provides excellent EMI shielding and protection against environmental moisture. --- ### ## 4. Common Applications Due to its reliability, the MHO+74TBD-R is commonly found in: 1. **Industrial Controls:** PLCs and automation timing. 2. **Networking:** Base stations and data communication hubs. 3. **Legacy Computing:** Replacement parts for older motherboards or timing circuits requiring 5V logic. 4. **Test & Measurement:** Oscilloscopes and signal generators.