18QHTF21-11.000-PD

Overview

The 18QHTF21-11.000-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 11 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features a power-down standby mode for energy efficiency. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

• Supports low-power operation through a dedicated power-down standby mode
• Delivers stable clock signals via LVCMOS output interface
• Designed for space-constrained applications using a small surface-mount package

Applications

• Battery-powered portable electronic devices
• General-purpose digital systems requiring precise timing
• Embedded circuits utilizing LVCMOS logic levels

Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required supply voltages and output types. Confirm that the 4-SMD no-lead package aligns with your PCB footprint requirements. Check datasheet specifications for operating temperature ranges and load capacitance values before integration into final designs.

Selection Notes

Select this component when a 11 MHz clock signal is required with low voltage operation. Ensure the design supports 1.8V logic levels and can accommodate the specified current consumption. Consider the physical size constraints of the 2.0x1.6mm package during layout planning.

Part Context

This model belongs to the QHTF series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies and voltage options within similar form factors. The 18QHTF21 variant specifically targets low-voltage applications with integrated power management features.

Replacement Considerations

Direct substitutes may include other 11 MHz LVCMOS oscillators in 2.0x1.6mm packages from compatible manufacturers. Verify pinout compatibility and electrical parameters such as rise/fall times and duty cycle before substitution.