18QHTF21-25.145-PD

Oscillators Overview

The 18QHTF21-25.145-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 25.145 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a power-down mode accessible via standby control. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. This component serves as a precise clock source for digital circuits requiring low-profile packaging and specific frequency stability.

Oscillators Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated power-down functionality for energy management
• Compact 4-SMD no-lead surface mount package

Oscillators Applications

• General purpose clock generation for embedded systems
• Timing reference for consumer electronics devices
• Clock source for portable battery-operated equipment

Oscillators Procurement Notes

Verify the exact datasheet specifications directly from Mercury Electronics Ind. Co. Ltd before integration. Confirm that the 1.8V supply requirement aligns with your system design. Ensure the 2.0x1.6mm footprint matches your PCB layout constraints. Validate the LVCMOS output levels against your receiving logic inputs to guarantee signal integrity and proper operation within the specified temperature range.

Oscillators Selection Notes

Select this component when a 25.145 MHz clock signal is required in a minimal space constraint. The 1.8V operating voltage makes it suitable for modern low-power digital designs. The power-down feature allows for system-wide energy savings when the clock is not actively needed. Consider the SMD package type for automated assembly processes and reliable surface mounting on printed circuit boards.

Oscillators Part Context

This part belongs to the 18QHTF21 series of quartz crystal oscillators from Mercury Electronics. The series typically offers various frequencies within a small form factor. The suffix PD indicates the inclusion of a power-down pin or function. These oscillators are designed to replace discrete crystal and oscillator circuits, providing a complete timing solution in a single surface-mount component.

Oscillators Replacement Considerations

Direct substitutes must match the 25.145 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility if replacing with other manufacturers' parts. Ensure the replacement supports the same power-down functionality. Check temperature range specifications to ensure environmental suitability for the intended application.