18QHTF21-100.196-PD

Overview

The 18QHTF21-100.196-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 100.196 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes a standby or power-down feature for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• LVCMOS output logic interface
• Integrated standby and power-down functionality
• Compact 4-SMD no lead surface mount package

Applications

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

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions to guarantee proper mechanical fit and electrical connectivity during assembly.

Selection Notes

Select this component when a precise 100.196 MHz clock source is required for low-voltage digital systems. The choice is driven by the need for LVCMOS compatibility and the integration of power-saving standby modes. Consider the small form factor for space-constrained designs requiring reliable frequency control without external buffering components.

Part Context

This part belongs to the Mercury Electronics XO series, designed for standard clock applications. The manufacturer specializes in quartz crystals and frequency control products, leveraging decades of experience in Taiwan's electronics industry. This specific model represents a standard configuration within their portfolio of surface-mount oscillators.

Replacement Considerations

Direct substitutes include other 100.196 MHz LVCMOS oscillators in similar 4-SMD packages from compatible manufacturers. Verify pinout compatibility and voltage levels before swapping. Alternative frequencies may require circuit redesign. Check datasheets for equivalent performance metrics regarding stability and phase noise.