18QHTF21-62.243-PD

Overview

The 18QHTF21-62.243-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 62.243 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 1.8V and features a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby and power-down functionality
• Utilizes LVCMOS output logic
• Features a small surface-mount package

Applications

• General electronic circuits requiring precise timing
• Embedded systems utilizing LVCMOS interfaces
• Portable devices requiring low-power consumption modes

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure that the 1.8V supply rail is stable to maintain signal integrity. Confirm that the PCB layout accommodates the 4-SMD no-lead footprint dimensions accurately to prevent soldering defects during assembly.

Selection Notes

Select this component when a 62.243 MHz clock source is required with LVCMOS compatibility. Consider the 1.8V operating voltage constraint and the necessity for power-down capabilities. Evaluate the physical space constraints to ensure the 2.0x1.6mm package fits within the designated area on the printed circuit board.

Part Context

This model belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal frequency control products. The series offers various frequencies within a standardized small outline package format. Mercury Electronics has a long history in the Taiwan quartz crystal industry, providing reliable timing solutions for consumer and industrial electronics.

Replacement Considerations

Other variants in the 18QHTF21 series, such as 18QHTF21-77.760-PD or 18QHTF21-51.200-PD, share identical packaging and electrical characteristics but operate at different frequencies. Direct substitution is only possible if the system can accommodate the alternative frequency without affecting timing-sensitive operations.