18QHTF21-4.007-OE

Oscillators Overview

The 18QHTF21-4.007-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 4.007 MHz and utilizes LVCMOS output logic levels. The device supports an enable/disable control function and is powered by a 1.8V supply voltage. It is housed in a compact 4-SMD, No Lead package designed for surface-mount applications.

Oscillators Feature Summary

• LVCMOS output interface
• Enable/Disable control functionality
• Surface-mount 4-SMD No Lead package

Oscillators Applications

• General clock signal generation
• Digital circuit timing references
• Embedded system clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Confirm that the 1.8V supply voltage aligns with the target system design. Ensure the 4-SMD No Lead package dimensions fit the PCB footprint constraints. Check for any specific ordering suffixes or variants that may affect electrical characteristics or packaging options.

Oscillators Selection Notes

Select this component when a precise 4.007 MHz clock source is required for low-voltage digital circuits. The LVCMOS output is suitable for direct interfacing with standard logic families. Consider the enable/disable feature if power management or clock gating is necessary. Verify compatibility with the 1.8V operating voltage range of the host system.

Oscillators Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options. Mercury Electronic is a Taiwan-based manufacturer specializing in quartz crystals and timing components since 1973. The company produces a wide range of frequency control products including TCXOs and VCTCXOs.

Oscillators Replacement Considerations

Direct substitutes must match the 4.007 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Cross-reference with other manufacturers offering identical pinouts and electrical specifications. Ensure thermal and mechanical compatibility during replacement.