18QHTF21-10.475-PD

Overview

The 18QHTF21-10.475-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 10.475 MHz and utilizes LVCMOS output logic levels. The device requires a supply voltage of 1.8V and features a power-down standby mode for energy efficiency. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0 mm by 1.6 mm. This component is designed for timing applications requiring precise clock signals in space-constrained electronic systems.

Feature Summary

• Supports low-voltage operation at 1.8V with LVCMOS output compatibility
• Includes a dedicated power-down standby function to reduce consumption
• Utilizes a small-footprint 4-SMD no-lead surface-mount package

Applications

• General timing clock generation in consumer electronics
• Data communication interface synchronization
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions. Check for any specific handling instructions regarding electrostatic discharge during assembly.

Selection Notes

Select this oscillator when a 10.475 MHz reference signal is required with minimal power consumption. The LVCMOS output ensures direct interfacing with compatible digital logic without additional level shifting. Consider the physical size constraints as the 4-SMD package offers a compact solution for dense board layouts.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronic Ind. Co. Ltd, a supplier specializing in quartz crystals and oscillators. The series typically includes various frequencies within the same package form factor. The 'PD' suffix indicates the inclusion of a power-down feature, distinguishing it from standard continuous-operation variants in the lineup.

Replacement Considerations

Direct substitutes must match the 10.475 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter if critical to the application.