18QHTF21-49.4533-OE

Overview

The 18QHTF21-49.4533-OE is a quartz crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 49.4533 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Feature Summary

• LVCMOS compatible output logic for standard digital interface integration
• Integrated enable and disable functionality for power management
• Compact 4-pin SMD no-lead package design for space-constrained layouts

Applications

• High-performance digital signal processing systems
• Communication equipment requiring stable clock sources
• Embedded systems utilizing LVCMOS interfaces

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Confirm that the 1.8V supply voltage aligns with the target system's power rails. Ensure the 4-SMD no-lead package footprint matches the PCB design guidelines to prevent assembly issues.

Selection Notes

Select this component when a 49.4533 MHz clock signal is required with LVCMOS compatibility. Consider the 1.8V operating voltage and enable/disable pin availability as critical selection criteria. Evaluate the thermal performance and size constraints of the 4-SMD package relative to the application environment.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystals and timing solutions. The series typically includes various frequencies and packages, catering to diverse electronic design needs. Mercury Electronic has established itself as a supplier of frequency control products since 1973.

Replacement Considerations

Compatible substitutes include other 49.4533 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation, such as variants from the same manufacturer like 18QHTF21-49.152-OE or similar industry-standard parts, provided electrical parameters match.