18QHTF21-12.9024-OE

Overview

The 18QHTF21-12.9024-OE is a quartz crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 12.9024 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes an enable/disable control feature for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. This surface-mount component is designed for applications requiring precise timing signals in low-voltage digital circuits.

Feature Summary

• Generates stable clock signals using quartz crystal technology
• Supports low-voltage operation with integrated enable/disable functionality
• Provides LVCMOS output logic for direct interface with digital components

Applications

• Clock signal generation for embedded systems
• Timing reference for microcontrollers and processors
• Data communication interfaces requiring precise synchronization

Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required frequency tolerance and load capacitance specifications. Confirm that the 1.8V supply voltage aligns with the target circuit design. Ensure the 4-SMD no-lead package footprint matches the PCB layout constraints. Cross-reference the manufacturer's datasheet for thermal and electrical limits before finalizing procurement decisions.

Selection Notes

Select this component when a low-profile, surface-mount oscillator is required for 1.8V logic systems. Consider the 2.0x1.6mm package size for space-constrained designs. Evaluate the LVCMOS output compatibility with downstream digital inputs. Verify that the enable/disable pin requirement fits the system's power management strategy.

Part Context

This part belongs to the 18QHTF21 series of SMD oscillators from Mercury Electronics. The series typically offers various frequencies and voltage options within a standardized small outline package. These components are commonly used in consumer electronics and industrial equipment where reliable timing is essential.

Replacement Considerations

Direct substitutes may include other 12.9024 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pinout compatibility and physical dimensions before substitution. Check if alternative manufacturers offer equivalent performance metrics for frequency stability and phase noise.