18QHTF21-100.200-PD

Overview

The 18QHTF21-100.200-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 100.2 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and features a standby or power-down function for energy management. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0x1.6 mm. This component is designed for applications requiring precise timing signals in space-constrained electronic systems.

Feature Summary

• Standard XO configuration with LVCMOS output interface
• Integrated standby and power-down functionality
• Compact 4-SMD no lead surface mount package

Applications

• General purpose digital circuit timing
• Communication equipment clock sources
• Embedded system synchronization

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 PCB footprint matches the 2.0x1.6 mm SMD package dimensions to guarantee proper soldering and mechanical stability during assembly processes.

Selection Notes

Select this model when a low-profile 1.8V LVCMOS oscillator is required for 100.2 MHz applications. Consider the standby feature if power efficiency is critical. Compare package size constraints against alternative frequencies within the same series to ensure optimal board layout and signal integrity for the target electronic application.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies in a small form factor. The series includes models like 51.2 MHz and 37.2 MHz variants, sharing similar electrical characteristics and packaging. The 'PD' suffix indicates the inclusion of power-down capability, distinguishing it from standard continuous-operation oscillators in the product line.

Replacement Considerations

Direct substitutes include other 100.2 MHz LVCMOS oscillators in 2.0x1.6 mm packages from compatible manufacturers. Verify pin compatibility and voltage levels. Cross-reference with Mercury's own series variants such as 18QHTF53-100.200-PD if larger package sizes are acceptable, ensuring identical frequency and logic output standards.