18QHTF21-10.6244-PD

Overview

The 18QHTF21-10.6244-PD is a crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 10.6244 MHz with an LVCMOS output logic level. The device requires a 1.8V supply voltage 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

• Battery-powered portable devices
• Compact electronic systems requiring low profile components
• Digital signal processing circuits

Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required supply voltages and output types. Confirm that the package dimensions align with the target PCB footprint. Check datasheet specifications for operating temperature ranges and load capacitance requirements before integration into final designs.

Selection Notes

Select this component when a small form factor is critical for the design. Ensure the system architecture supports 1.8V logic levels. Consider the power-down feature if dynamic power management is required. Verify that the 10.6244 MHz frequency matches the clock input requirements of the destination IC.

Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies and supply voltages. The -PD suffix typically indicates a specific pin configuration or functional variant, such as power-down support, distinguishing it from standard versions within the same physical package family.

Replacement Considerations

Direct substitutes include other 18QHTF21 series variants with matching 10.6244 MHz frequency and 1.8V supply. Cross-reference with similar 2.0x1.6mm LVCMOS oscillators from other manufacturers only if electrical parameters and pinout definitions are identical.