18QHTF21-43.700-OE

Oscillators Overview

The 18QHTF21-43.700-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 43.7 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V and includes an integrated enable/disable control function for power management. It is housed in a compact 4-SMD, no lead package suitable for surface mount applications.

Oscillators Feature Summary

• LVCMOS output interface
• Enable/Disable control pin
• Surface mount packaging

Oscillators Applications

• General purpose clock generation
• Digital signal processing systems
• Communication equipment timing

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD footprint matches your PCB layout constraints. Request the official datasheet from Mercury Electronics to validate electrical characteristics for your specific operating temperature range.

Oscillators Selection Notes

Select this component when a precise 43.7 MHz clock source is required with low power consumption capabilities. The LVCMOS output ensures compatibility with standard digital logic families. Consider the enable/disable feature if power efficiency during idle states is a priority. Verify that the 1.8V operating voltage meets the requirements of your target application environment.

Oscillators Part Context

This part belongs to the Mercury Electronic XO series, which provides quartz-based timing solutions. The manufacturer specializes in frequency control products including crystals, oscillators, and filters. This specific model represents a standard frequency option within their portfolio of surface mount oscillators designed for consumer and industrial electronics.

Oscillators Replacement Considerations

Direct replacements must match the 43.7 MHz frequency, LVCMOS output type, 1.8V supply voltage, and 4-SMD package dimensions. Cross-reference with other Mercury models such as 18QHTF21-43.000-OE only if frequency adjustment is acceptable. Ensure any substitute maintains the same enable/disable functionality and thermal specifications.