18QHTF21-44.237-PD

Oscillators Overview

The 18QHTF21-44.237-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 44.237 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes a standby or power-down control feature. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Integrates standby and power-down functionality
• Provides LVCMOS digital output signals
• Utilizes a leadless surface-mount package

Oscillators Applications

• Embedded system clock generation
• Digital signal processing timing references
• Communication interface synchronization
• Microcontroller peripheral clocking

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply rail stability meets the oscillator's operational specifications. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions to prevent assembly errors during manufacturing.

Oscillators Selection Notes

Select this component when a precise 44.237 MHz reference is required for LVCMOS-compatible circuits. Consider the 1.8V operating voltage constraint and the need for power management features like standby mode. Evaluate the small form factor suitability for space-constrained designs requiring leadless mounting solutions.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The manufacturer has decades of experience in Taiwan's crystal industry. This series typically offers standard oscillators designed for various digital applications requiring stable timing sources.

Oscillators Replacement Considerations

Direct substitutes must match the 44.237 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and thermal characteristics. Cross-reference with other manufacturers offering similar leadless XO packages.