18QHTF21-49.3433-PD

Overview

The 18QHTF21-49.3433-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 49.3433 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and includes a power-down feature for standby mode. It utilizes a 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The component supports an operating temperature range suitable for general electronic applications.

Feature Summary

• LVCMOS output interface
• Power-down capability
• Compact surface-mount design

Applications

• General timing circuits
• Digital signal processing systems
• Communication equipment

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints. Check for any RoHS compliance documentation if required for your manufacturing standards.

Selection Notes

Select this component when a precise 49.3433 MHz clock source is needed in a compact form factor. The LVCMOS output is compatible with standard digital logic families. Consider the power-down feature if energy efficiency during idle periods is a priority. Verify that the operating temperature range meets the environmental conditions of the final application.

Part Context

This part belongs to the HUS series or similar oscillator lines from Mercury Electronics, focusing on quartz-based timing solutions. Mercury Electronic Ind. Co., Ltd. is a supplier specializing in crystals, oscillators, and filters. This specific model represents a standard XO variant designed for integration into modern electronic devices requiring stable clock signals.

Replacement Considerations

No direct public substitute part numbers are confirmed in the provided data. When replacing, ensure the new component matches the 49.3433 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package dimensions. Verify electrical characteristics such as phase noise and stability if critical to performance.