18QHTF21-8.700-OE

Overview

The 18QHTF21-8.700-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 8.7 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes an enable/disable control feature. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

• Integrates enable and disable functionality for power management
• Provides LVCMOS output signals for digital interfacing
• Utilizes a leadless surface-mount package design

Applications

• General clock signal generation in electronic circuits
• Timing reference sources for low-voltage digital systems
• Embedded applications requiring compact oscillator solutions

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's power rails. Ensure the 4-SMD no-lead package footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly processes.

Selection Notes

Select this component when a precise 8.7 MHz timing source is required for LVCMOS-compatible logic families. Consider the 1.8V operating voltage constraint and the availability of an enable pin for power optimization. Evaluate the small 2.0x1.6mm form factor against available board space constraints to ensure compatibility with dense surface-mount designs.

Part Context

This model belongs to the Mercury Electronic 18QHTF series of quartz crystal oscillators. The series typically offers various frequencies and voltage options within a standardized small outline package. These components are designed for general-purpose timing applications where size and low power consumption are prioritized over high-frequency stability characteristics found in TCXO or OCXO variants.

Replacement Considerations

Direct substitutes include other 8.7 MHz LVCMOS oscillators in 4-SMD packages from compatible manufacturers. Verify pinout compatibility and electrical parameters such as supply voltage and output swing. Cross-reference part numbers like 18QHTF21-8.640-OE only if frequency adjustment is acceptable.