The **MCSO2EL_17** refers to a high-reliability, low-voltage clock oscillator manufactured by **Micro Crystal**. It is specifically designed for extreme environments, typically used in aerospace, defense, and high-temperature industrial applications. --- ### 1. Key Technical Specifications The following table summarizes the primary electrical and physical characteristics of the MCSO2EL_17: | Feature | Specification | | :--- | :--- | | **Frequency Range** | 10 kHz to 225 MHz | | **Supply Voltage ($V_{DD}$)** | 1.8 V to 3.3 V | | **Output Type** | CMOS / LVCMOS | | **Package Size** | 5.0 x 3.2 x 1.3 mm (SMD) | | **Operating Temperature** | -55°C to +125°C (Up to +210°C for specialized versions) | | **Standard Stability** | ±100 ppm (Tighter tolerances available) | --- ### 2. Core Components and Design The internal architecture of the MCSO2EL_17 consists of three main segments: * **AT-Cut Quartz Crystal:** The heart of the component. The "AT-cut" provides excellent temperature stability and a high Q-factor. * **Oscillator IC:** A low-power CMOS integrated circuit that maintains the oscillation and manages the output signal. * **Ceramic Package:** A hermetically sealed ceramic housing with a metal lid (Kovar) designed to withstand high pressure and vibration. --- ### 3. Distinctive Features * **Low Current Consumption:** Optimized for battery-powered or energy-constrained aerospace systems. * **Shock and Vibration Resistance:** Built to survive mechanical shocks up to 5000g and vibrations up to 20g. * **Fast Start-up Time:** Typically reaches stable frequency in less than 5ms. * **Aging Performance:** Very low aging rates (approx. ±3 ppm in the first year), ensuring long-term precision. --- ### 4. Common Applications Due to its ruggedized nature, this part is found in: 1. **Avionics:** Flight control systems and cockpit displays. 2. **Downhole Drilling:** High-temperature sensors for oil and gas exploration. 3. **Space Technology:** Satellites and rover instrumentation. 4. **Military:** Secure communication devices and guidance systems.