18QHTF21-100.008-PD

Overview

The 18QHTF21-100.008-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 100.008 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes a standby or power-down feature for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

• Supports low-voltage operation at 1.8V
• Integrates standby mode for power reduction
• Provides LVCMOS signal output compatibility

Applications

• Digital clock signal generation
• Data communication interface timing
• Embedded system microcontroller clocks

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply rail stability meets the oscillator's operational specifications. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions to guarantee proper soldering and mechanical retention during assembly processes.

Selection Notes

Select this component when a precise 100.008 MHz reference is required within space-constrained designs. The choice is driven by the need for low-power consumption via the standby function and compatibility with 1.8V logic families. Consider the small form factor as a primary advantage for high-density board layouts where traditional packages cannot fit.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The series is characterized by its small footprint and low voltage operation, catering to modern portable electronics. Mercury Electronics has a long history in Taiwan's crystal manufacturing industry, providing reliable frequency standards for various industrial applications.

Replacement Considerations

Direct substitutes include other 18QHTF21 variants with different frequencies, such as 18QHTF21-100.000-PD, if frequency adjustment is permissible. Cross-referencing with similar 2.0x1.6mm LVCMOS oscillators from other manufacturers requires verifying pinout compatibility and electrical parameter alignment.