18QHTF21-49.3367-PD

Overview

The 18QHTF21-49.3367-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 49.3367 MHz with LVCMOS output logic. The device functions on a 1.8V supply voltage and includes a standby mode for power down capabilities. It utilizes a 4-SMD, no lead package configuration. This component is designed as a low-power clock oscillator suitable for timing applications requiring precise frequency stability.

Feature Summary

• Provides LVCMOS output signal generation
• Supports standby mode for power reduction
• Operates on a 1.8V supply voltage

Applications

• Low-power clock distribution systems
• Digital signal processing timing references
• Communication interface synchronization

Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system's power architecture. Ensure the 4-SMD package dimensions fit within the available PCB real estate constraints. Cross-reference the part number suffix to confirm the exact frequency tolerance and packaging specifications required for the application.

Selection Notes

Select this component when a stable 49.3367 MHz reference is needed with minimal power consumption. The LVCMOS output is compatible with standard digital logic families. Consider the 1.8V operation if the system requires lower voltage levels compared to traditional 3.3V or 5V oscillators. The compact SMD form factor aids in space-constrained designs.

Part Context

This model belongs to the 18QHTF21 series from Mercury Electronics, which specializes in frequency control products including quartz crystals and oscillators. The manufacturer has been active in the industry since 1973, focusing on precision timing solutions. This specific part represents their standard XO line offering integrated functionality in a small surface-mount package.

Replacement Considerations

Direct substitutes must match the 49.3367 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify equivalent electrical parameters such as phase noise and stability before substitution.