18QHTF21-31.744-PD

Oscillators Overview

The 18QHTF21-31.744-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 31.744 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes an enable/disable control feature for standby power down modes. It is housed in a compact 4-SMD, No Lead surface-mount package designed for space-constrained applications.

Oscillators Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Features enable/disable functionality for power management
• Utilizes a compact 4-SMD no-lead surface mount package

Oscillators Applications

• General purpose clock signal generation
• Embedded system timing references
• Digital circuit synchronization

Oscillators Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to ensure correct electrical characteristics and package type. Confirm that the PD suffix aligns with the required standby or power-down specifications. Cross-reference the part number with the latest datasheet to validate frequency tolerance and operating temperature ranges before procurement.

Oscillators Selection Notes

Select this component when a 31.744 MHz clock source is required with low voltage operation. Ensure the design supports LVCMOS logic levels and accommodates the 1.8V supply requirement. Consider the physical dimensions of the 4-SMD package during PCB layout planning to ensure adequate clearance and thermal management for the surface-mount assembly process.

Oscillators Part Context

Mercury Electronics Ind. Co. Ltd specializes in frequency control products, including quartz crystals and oscillators. This model belongs to their series of surface-mount crystal oscillators designed for modern electronic devices requiring precise timing signals. The company has a history of manufacturing quartz-based components for various industrial and consumer applications.

Oscillators Replacement Considerations

Consult official substitution lists from Mercury Electronics for compatible alternatives. Verify that any substitute matches the 31.744 MHz frequency, LVCMOS output, and 1.8V supply requirements. Ensure the replacement package is pin-compatible and meets the same environmental specifications.