18QHTF21-10.3488-PD

Overview

The 18QHTF21-10.3488-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 10.3488 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features a standby (power down) function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.00mm x 1.60mm.

Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby mode capability
• Provides LVCMOS output signal

Applications

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

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system's power rails. Ensure the 4-SMD no-lead package footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly.

Selection Notes

Select this component when a precise 10.3488 MHz reference is required for LVCMOS-compatible interfaces. The choice is driven by the need for a small form factor suitable for space-constrained designs. Consider the 1.8V operating voltage as a primary constraint for compatibility with modern low-power logic families.

Part Context

This part 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 2.0x1.6mm package. The 'PD' suffix indicates the inclusion of a power-down feature, distinguishing it from continuous-operation variants in the same physical footprint family.

Replacement Considerations

Direct replacements must match the 10.3488 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm package dimensions. Verify pinout compatibility and electrical characteristics such as current consumption and startup time. Cross-reference with other manufacturers offering equivalent SMD oscillators if supply constraints exist.