18QHTF21-10.800-PD

Overview

The 18QHTF21-10.800-PD is a 10.8 MHz crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It utilizes LVCMOS output logic and operates at a supply voltage of 1.8V. The device features a Standby (Power Down) control function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. This component is designed for standard clock applications requiring low power consumption.

Feature Summary

• Integrates LVCMOS output logic for digital interface compatibility
• Includes standby mode functionality to reduce power consumption during idle periods
• Utilizes lead-free surface mount packaging for automated assembly

Applications

• Battery-powered portable electronic devices
• General purpose clock signal generation
• Standard digital circuit timing references

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target system design before procurement. Confirm that the 1.8V supply voltage aligns with the host controller's I/O levels. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions to prevent soldering defects. Check for any specific reflow profile recommendations provided in the manufacturer datasheet.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a small form factor. The inclusion of a power-down feature makes it suitable for systems needing active power management. Compare the 10.8 MHz frequency against other available variants in the series if different timing speeds are needed. Ensure the LVCMOS output swing is compatible with the receiving logic gates.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within a 2.0x1.6mm package. The series typically supports both 1.8V and 3.3V options, with suffixes indicating voltage or package variations. The 'PD' suffix denotes the presence of a power-down control pin, distinguishing it from continuous-run oscillators.

Replacement Considerations

Direct substitutes include other 10.8 MHz LVCMOS oscillators in 2.0x1.6mm packages with 1.8V operation and standby pins. Verify pinout compatibility and electrical parameters such as jitter and duty cycle before substitution.