18QHTF21-103.75977-PD

Overview

The 18QHTF21-103.75977-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 103.75977 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a power-down standby function controlled by an enable pin. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0x1.6mm.

Feature Summary

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

Applications

• General clock signal generation
• Digital circuit timing references
• Embedded system clock sources

Procurement Notes

Verify the specific suffix 'PD' indicates the power-down feature when sourcing replacements. Confirm that the required frequency tolerance and load capacitance match the target circuit design requirements before procurement to ensure signal integrity.

Selection Notes

Select this component for applications requiring a precise 103.75977 MHz reference with low power consumption. Ensure the PCB layout accommodates the 2.0x1.6mm footprint and that the system logic levels are compatible with LVCMOS standards.

Part Context

This part belongs to the Mercury Electronics 18QHTF21 series of surface-mount oscillators. The series offers various frequencies and packages, providing standardized clock solutions for consumer electronics and industrial equipment requiring reliable timing signals.

Replacement Considerations

Direct substitutes include other 103.75977 MHz LVCMOS oscillators in 4-SMD packages from manufacturers like Epson or SiTime, provided they support 1.8V operation and power-down functionality.