18QHTF21-26.973026-PD

Oscillators Overview

The 18QHTF21-26.973026-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 26.973026 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and includes 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 x 1.6mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Integrates standby mode for power reduction
• Utilizes LVCMOS output interface

Oscillators Applications

• General digital clock generation
• Embedded system timing references
• Portable electronic devices requiring low power consumption

Oscillators Procurement Notes

Verify the exact part number suffix against official Mercury Electronics documentation to ensure correct frequency tolerance and package variant. Confirm that the LVCMOS output type matches the target circuit requirements. Check for any specific handling instructions related to the small SMD form factor during assembly.

Oscillators Selection Notes

Select this component when a precise 26.973026 MHz reference is required in space-constrained designs. The 1.8V supply requirement makes it suitable for modern low-power digital logic families. Ensure the PCB layout accommodates the 2.0x1.6mm footprint and provides adequate thermal relief for the no-lead package.

Oscillators Part Context

This model belongs to the 18QHTF21 series from Mercury Electronics, which focuses on miniature surface-mount oscillators. The series typically offers various frequency options within a standardized physical envelope, allowing designers to maintain consistent board layouts across different product variants while adjusting only the electrical specifications.

Oscillators Replacement Considerations

Direct substitutes must match the 26.973026 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package dimensions. Verify pinout compatibility before swapping manufacturers. Generic replacements may differ in phase noise or startup time specifications.