18QHTF21-40.700-OE

Oscillators Overview

The 18QHTF21-40.700-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 40.7 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications with a supply voltage of 1.8V. It features an enable/disable control function to manage power consumption. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.

Oscillators Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable/disable control functionality
• Low voltage operation at 1.8V

Oscillators Applications

• General purpose clock signal generation
• Digital system timing references
• Embedded controller clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application design specifications before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the 4-SMD no-lead package footprint matches the PCB layout constraints. Check for any specific manufacturing date codes or lot traceability requirements if applicable to the production batch.

Oscillators Selection Notes

Select this component when a precise 40.7 MHz clock source is required for LVCMOS-compatible digital circuits. The choice is driven by the need for low-power operation at 1.8V and the convenience of integrated enable/disable control. Consider the physical size of the 4-SMD package relative to available board space. Evaluate the thermal performance and operating temperature range to ensure reliability under expected environmental conditions.

Oscillators Part Context

This part belongs to the 18QHTF series of standard oscillators from Mercury Electronics. The series offers various frequencies and voltage options. The 'OE' suffix typically denotes a specific ordering configuration or packaging variant within the manufacturer's catalog. These components are part of Mercury's broader portfolio of quartz-based frequency control products, which includes crystals, TCXOs, and VCXOs.

Oscillators Replacement Considerations

Direct replacements must match the 40.7 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and electrical characteristics such as rise/fall times and jitter specifications. Cross-reference with other Mercury models like the 18QHTF21-40.700-PD if different packaging or leaded options are acceptable.