18QHTF21-57.558-PD

Overview

The 18QHTF21-57.558-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 57.558 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a power-down standby mode. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0mm by 1.6mm.

Feature Summary

• Supports low-voltage operation at 1.8V
• Includes power-down standby functionality
• Utilizes LVCMOS output logic

Applications

• General electronic circuit timing
• Embedded system clock generation
• Digital signal processing interfaces

Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required voltage levels and packaging formats. Confirm that the 1.8V supply requirement aligns with the target system design. Check for RoHS compliance status if environmental regulations apply. Ensure the 4-SMD package fits within the designated PCB footprint constraints.

Selection Notes

Select this component when a precise 57.558 MHz reference is required for LVCMOS-compatible circuits. Consider the 1.8V operating voltage to match low-power system architectures. Evaluate the small 2.0x1.6mm footprint for space-constrained designs. Verify that the power-down feature meets energy efficiency requirements during idle states.

Part Context

Mercury Electronics specializes in frequency control products, including quartz crystals and oscillators. This model belongs to their surface-mount oscillator series, which expanded from traditional lead types to modern SMD formats. The company maintains certifications such as IATF 16949 and ISO 9001:2015 for quality management.

Replacement Considerations

Cross-reference with other Mercury models in the QHTF21 series for similar frequencies. Ensure substitute parts support the same 1.8V supply and LVCMOS logic. Verify identical package dimensions for direct board replacement.