18QHTF21-49.540-OE

Oscillators Overview

The 18QHTF21-49.540-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 49.54 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. It features an enable/disable control function to manage power consumption. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.

Oscillators Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable/disable functionality for power management
• Compact 4-SMD no-lead surface mount package design

Oscillators Applications

• General-purpose clock signal generation
• Digital system timing references
• Embedded controller clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application's clock input specifications before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions provided in the official datasheet to guarantee proper solder joint formation and mechanical stability during operation.

Oscillators Selection Notes

Select this component when a precise 49.54 MHz clock source is required for LVCMOS-compatible digital circuits. The choice is driven by the need for low-voltage operation at 1.8V and the integration of enable/disable controls for energy efficiency. Consider the small form factor of the 4-SMD package if board space is limited. Validate that the operating temperature range meets the environmental conditions of the final assembly.

Oscillators Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage levels. The 'OE' suffix typically denotes specific ordering or packaging configurations defined by the manufacturer. Mercury Electronics specializes in quartz crystals and timing devices, providing solutions for consumer electronics and industrial applications.

Oscillators Replacement Considerations

Direct replacements must match the 49.54 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and electrical characteristics such as rise/fall times and duty cycle. Cross-reference with other manufacturers offering similar XO components in the same footprint.