The **MHO+53TCD-R** is a specific model of a **Quartz Crystal Oscillator**, typically manufactured by companies like **Mercury Electronic**. These components are critical for providing a stable clock signal in electronic circuits. Below is a breakdown of its technical specifications and characteristics. --- ### 1. Technical Specifications The part number follows a specific nomenclature that defines its physical and electrical properties. | Parameter | Specification | Details | | :--- | :--- | :--- | | **Component Type** | Crystal Oscillator (SPXO) | Simple Packaged Crystal Oscillator | | **Package Type** | DIP-14 (Full size) | Metal "Can" package with 4 pins | | **Supply Voltage** | 5.0V DC | Standard TTL/CMOS logic level | | **Output Type** | HCMOS / TTL | Compatible with standard digital ICs | | **Frequency Stability** | ±50 ppm / ±100 ppm | Varies by sub-suffix; "5" usually denotes stability | | **RoHS Status** | Compliant (-R) | Lead-free and environmentally safe | --- ### 2. Pin Configuration Although the package is shaped like a 14-pin DIP, only 4 pins are active. The standard layout for the MHO series is: | Pin Number | Function | Description | | :--- | :--- | :--- | | **Pin 1** | NC or E/D | No connection or Tri-state Enable/Disable | | **Pin 7** | GND | Circuit ground / Case ground | | **Pin 8** | Output | The generated square wave frequency | | **Pin 14** | Vcc | +5V Power Supply | --- ### 3. Key Features * **Metal Shielding:** The metal casing provides excellent EMI (Electromagnetic Interference) shielding, protecting the internal crystal from outside noise. * **Reliability:** Designed for high-temperature stability and long-term aging resistance. * **Ease of Use:** Since it is an "oscillator" (and not just a "crystal"), it contains the internal load capacitors and the oscillating circuit. You only need to provide power (Vcc/GND) to get a signal. --- ### 4. Typical Applications The MHO+53TCD-R is commonly found in legacy and industrial hardware, including: * **Microprocessor Clocks:** Providing the heartbeat for CPUs or MCUs. * **Telecommunications:** Timing for data transmission equipment. * **Embedded Systems:** Industrial controllers and automation boards. * **Legacy Computing:** Replacement parts for older motherboards or expansion cards.