18QHTF21-31.100-PD

Oscillators Overview

The 18QHTF21-31.100-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 31.1 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 1.8V and features a standby or power-down function for energy management. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0mm by 1.6mm. This component serves as an active timing source for electronic circuits requiring precise clock signals.

Oscillators Feature Summary

• LVCMOS output logic interface
• Integrated standby and power-down functionality
• Compact surface-mount package design

Oscillators Applications

• General purpose clock generation
• Digital signal processing systems
• Embedded controller timing

Oscillators Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against the target application's environmental conditions. Confirm that the 1.8V supply voltage aligns with the system's power architecture. Ensure the 4-SMD no-lead package footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this model when a low-voltage 1.8V operation is required alongside a standard LVCMOS interface. The choice is driven by the need for a small 2.0x1.6mm footprint and the inclusion of a power-down feature for efficiency. Consider this part for designs where mercury electronics' timing reliability and standard XO performance meet the system's jitter and stability needs.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronic Ind. Co., Ltd, a manufacturer specializing in quartz crystals and timing solutions since 1973. The series includes various frequencies such as 51.2 MHz and 80 MHz variants. The company is recognized as a pioneer in Taiwan's crystal industry, providing frequency control products including TCXO and VCTCXO options.

Oscillators Replacement Considerations

Direct substitutes include other 31.1 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pin compatibility and electrical parameters before swapping. No specific alternative part numbers are confirmed in public documentation.