18QHTF21-76.2805-PD

Overview

The 18QHTF21-76.2805-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 76.2805 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 1.8V and features a Standby function for power down control. It is housed in a compact 4-SMD, No Lead package suitable for surface-mount applications.

Feature Summary

• Standard XO configuration with LVCMOS output interface
• Integrated standby capability for power management
• Compact 4-SMD no lead surface mount package

Applications

• General purpose clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no lead footprint matches your PCB layout constraints to guarantee proper assembly and electrical connectivity.

Selection Notes

Select this component when a precise 76.2805 MHz clock source is required with low voltage operation. Consider the LVCMOS compatibility with downstream digital logic levels. Evaluate the need for standby functionality to optimize power consumption during idle periods in portable or battery-operated devices.

Part Context

This part belongs to the Mercury Electronics standard XO series, designed for general timing applications. The manufacturer specializes in quartz crystals and oscillators, providing reliable frequency control solutions. The 18QHTF21 series offers various frequencies within a standardized small outline package format.

Replacement Considerations

Direct substitutes must match the 76.2805 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no lead package. Verify pinout compatibility and thermal characteristics if replacing with components from other manufacturers.