18QHTF21-49.3333-PD

Overview

The 18QHTF21-49.3333-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 49.3333 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• Standard crystal oscillator design with LVCMOS output interface
• Integrated standby mode for power reduction
• Compact 4-SMD no-lead surface mount package

Applications

• Digital signal processing circuits
• Communication equipment timing references
• Embedded system clock generation

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 4-SMD footprint matches your PCB layout constraints. Check for any specific RoHS compliance documentation if required by your manufacturing standards.

Selection Notes

Select this component when a 49.3333 MHz reference is needed with low power consumption capabilities. The LVCMOS output is compatible with standard digital logic families operating at 1.8V. Consider the small form factor for space-constrained designs. Verify that the active status of the part ensures long-term availability for production runs.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in frequency control products. The series offers various frequencies within a standardized 2.0x1.6mm package. Mercury Electronics has been a pioneer in the crystal industry since 1973, providing reliable timing solutions for global markets.

Replacement Considerations

Direct substitutes may include other 49.3333 MHz XO components in 4-SMD packages with LVCMOS outputs and 1.8V operation. Verify pin compatibility and electrical specifications such as phase noise and stability before swapping. Consult manufacturer cross-reference lists for confirmed equivalent parts.