18QHTF21-63.700-OE

Overview

The 18QHTF21-63.700-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 63.7 MHz and utilizes LVCMOS output logic levels. The device functions with a supply voltage of 1.8V and includes an enable/disable control pin for power management. It is housed in a compact 4-SMD, no lead package designed for surface mount applications. The component supports an operating temperature range from -40°C to 85°C and exhibits a frequency stability of ±50ppm. Maximum supply current is specified at 22mA.

Feature Summary

• Integrates LVCMOS output interface for direct digital logic compatibility
• Features active enable/disable control functionality for power optimization
• Constructed in a small form factor 4-SMD no lead surface mount package

Applications

• General purpose timing reference for embedded systems
• Clock source for microcontroller units requiring 1.8V logic
• Consumer electronics devices utilizing surface mount assembly

Procurement Notes

Verify the specific suffix designation against official Mercury Electronic documentation to ensure correct voltage and output type alignment. Confirm that the 4-SMD no lead package dimensions match the target PCB footprint requirements. Validate the frequency tolerance specification of ±50ppm against system clock accuracy needs before finalizing procurement orders.

Selection Notes

Select this component when a 1.8V supply voltage and LVCMOS output are required for the target circuit design. Consider the ±50ppm frequency stability limit for applications sensitive to clock drift over the industrial temperature range. Ensure the manufacturing date code meets project lifecycle requirements due to potential obsolescence risks associated with older inventory codes.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronic Ind. Co. Ltd, a supplier specializing in quartz crystals and frequency control products. The series typically offers various standard frequencies within a standardized surface mount footprint. Mercury Electronics has established itself as a manufacturer of timing components since 1973, focusing on quartz-based solutions for global markets.

Replacement Considerations

Direct substitutes include other 63.7 MHz LVCMOS oscillators in 4-SMD packages from compatible manufacturers. Verify pinout compatibility and electrical specifications such as supply voltage and current consumption. Cross-reference part numbers like 18QHTF21-63.700 without the OE suffix if available, ensuring identical functional parameters.