18QHTF21-11.900-PD

Overview

The 18QHTF21-11.900-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 11.9 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a power-down function for standby mode control. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Supports low-voltage operation at 1.8V
• Includes power-down capability for energy management
• Utilizes LVCMOS output interface

Applications

• General timing clock generation
• Embedded system synchronization
• Portable electronic devices requiring low power

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply rail is stable to ensure signal integrity. Check the datasheet for absolute maximum ratings to prevent damage during installation or operation.

Selection Notes

Select this component when a precise 11.9 MHz reference is needed in space-constrained designs. Ensure the host system supports LVCMOS signaling standards. Consider the thermal environment as operating temperature ranges may affect long-term stability.

Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies within a small footprint, suitable for modern electronics where board space is limited. The 'PD' suffix indicates the inclusion of a power-down pin for active management.

Replacement Considerations

Direct substitutes must match the 11.9 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm package. Verify pin compatibility and electrical characteristics before swapping.