18QHTF21-57.503667-PD

Overview

The 18QHTF21-57.503667-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 57.503667 MHz and utilizes LVCMOS output logic. The device supports 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. The component is designed for operation within standard industrial temperature ranges.

Feature Summary

• Integrates LVCMOS output logic for digital interface compatibility
• Supports standby mode to reduce power consumption during idle periods
• Utilizes a leadless surface-mount package for automated assembly

Applications

• Digital signal processing systems requiring precise clock timing
• Communication equipment utilizing standard logic interfaces
• Embedded control units needing low-voltage power sources

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure the correct pinout and electrical characteristics are selected. Confirm that the required operating temperature range aligns with the application environment. Cross-reference the package dimensions with the PCB footprint design to guarantee mechanical fit. Ensure the supply voltage requirements match the system's power rail specifications before finalizing procurement.

Selection Notes

Select this component when a fixed frequency near 57.5 MHz is required with LVCMOS compatibility. The 1.8V supply requirement makes it suitable for modern low-power digital circuits. Consider the small 2.0x1.6mm footprint for space-constrained designs. Verify that the standard output amplitude meets the input threshold requirements of the receiving logic gates in the target circuit design.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics Ind. Co. Ltd, which specializes in quartz crystal frequency control products. The series features various frequencies and packages tailored for different electronic applications. Mercury Electronics has a long history in the Taiwan quartz industry, providing reliable timing solutions for global electronics manufacturing sectors.

Replacement Considerations

Direct substitutes include other 18QHTF21 variants with identical pinouts but different frequencies, such as 18QHTF21-57.513667-OE. Ensure any replacement maintains the same 1.8V supply voltage and LVCMOS output type. Verify that the physical dimensions remain compatible with the existing PCB layout.