18QHTF21-26.6666-PD

Oscillators Overview

The 18QHTF21-26.6666-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 26.6666 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes a standby or power-down feature for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm. The component is designed for applications requiring precise timing signals within a small form factor.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby mode capability
• Utilizes LVCMOS output interface

Oscillators Applications

• Portable electronic devices
• Communication equipment
• Embedded systems

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints. Check for any specific reflow soldering profile recommendations provided in the official datasheet to ensure reliable assembly.

Oscillators Selection Notes

Select this component when a low-profile, surface-mount oscillator is required for space-constrained designs. Consider the 1.8V operating voltage if your system uses low-power logic families. The LVCMOS output is suitable for direct interfacing with digital inputs. Evaluate the need for a power-down feature to manage battery life in portable applications.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies in a 2.0x1.6mm package. The series is known for providing standard clock signals with low power consumption. The 'PD' suffix indicates the inclusion of a power-down function, distinguishing it from non-pd variants in the same package family.

Oscillators Replacement Considerations

Direct replacements must match the 26.6666 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and thermal characteristics. Alternative parts from other manufacturers may require schematic adjustments if output drive strength or rise/fall times differ significantly.