18QHTF21-1.9512-OE

Overview

The 18QHTF21-1.9512-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 1.9512 MHz and utilizes an LVCMOS output signal format. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. It features integrated enable and disable functionality to manage power consumption effectively. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly processes.

Feature Summary

• LVCMOS output interface for digital logic compatibility
• Integrated enable and disable control capability
• Low voltage operation at 1.8V supply

Applications

• General purpose clock generation in embedded systems
• Timing reference for microcontrollers
• Digital signal processing circuits

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system's power rails. Ensure the 4-SMD no-lead package footprint matches the PCB layout specifications. Cross-reference the datasheet for operating temperature range limitations to guarantee reliability under intended environmental conditions.

Selection Notes

Select this component when a precise 1.9512 MHz timing source is required for low-power digital applications. The LVCMOS output ensures direct interfacing with standard logic families without additional buffering. The enable/disable feature provides flexibility for power management strategies in battery-operated devices. Consider the physical dimensions of the 4-SMD package for space-constrained designs.

Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies optimized for different communication and computing standards. Mercury Electronic specializes in frequency control products, including quartz crystals and oscillators, serving industries requiring reliable timing solutions. The 'OE' suffix typically denotes specific packaging or tape-and-reel options.

Replacement Considerations

Direct replacements must match the 1.9512 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter. Consult manufacturer substitution lists for equivalent parts with identical form, fit, and function.