18QHTF21-49.4467-PD

Overview

The 18QHTF21-49.4467-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 49.4467 MHz with LVCMOS output logic. The device requires a 1.8V supply voltage and features a low-power standby mode for power-down functionality. It utilizes a 4-SMD, No Lead package configuration. The component supports an operating temperature range suitable for industrial applications, ensuring reliable timing performance in digital circuits requiring precise clock signals.

Feature Summary

• Provides stable LVCMOS clock signal output
• Includes low-power standby capability
• Compact surface-mount design

Applications

• Digital system clock generation
• Communication interface timing
• Microcontroller clock sources

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 power rails. Ensure the 4-SMD no-lead package dimensions fit within the available PCB footprint constraints. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Selection Notes

Select this component when a precise 49.4467 MHz reference is required for LVCMOS-compatible logic families. Consider the 1.8V operating voltage as a primary constraint for power budgeting. Evaluate the thermal characteristics against the expected ambient operating conditions. Compare the physical size of the 4-SMD package against other available oscillator options to ensure mechanical compatibility.

Part Context

This part belongs to the 18QHTF21 series of quartz crystal oscillators from Mercury Electronics. The series offers various frequencies with standardized LVCMOS outputs. These components are designed for applications demanding accurate timing in compact electronic devices. The manufacturer specializes in frequency control solutions including crystals and oscillators.