18QHTF21-12.1875-OE

Overview

The 18QHTF21-12.1875-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 12.1875 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes an enable/disable control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

• Integrates LVCMOS output logic for digital signal compatibility
• Features integrated enable and disable control functionality
• Utilizes a leadless SMD package for surface mount assembly

Applications

• General clock generation in electronic circuits
• Timing reference for digital systems
• Embedded system clock sources

Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against the official datasheet before procurement. Confirm that the 1.8V supply voltage aligns with the target circuit design. Ensure the 4-SMD no-lead package footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly processes.

Selection Notes

Select this component when a precise 12.1875 MHz timing source is required with low-voltage operation. The LVCMOS interface suits standard digital logic families. Consider the small 2.0x1.6mm form factor for space-constrained designs. Verify that the enable pin functionality meets power management needs within the application architecture.

Part Context

This part belongs to the 18QHTF21 series of standard XO oscillators from Mercury Electronic. The series offers various frequencies and voltage options. The -OE suffix typically denotes a specific packaging or tape-and-reel configuration, though exact details require datasheet confirmation. It serves as a timing solution for consumer and industrial electronics requiring stable quartz-based frequency generation.

Replacement Considerations

Direct substitutes include other 12.1875 MHz LVCMOS oscillators in 2016 packages from compatible manufacturers. Cross-reference electrical parameters such as phase noise and jitter specifications. Ensure the replacement supports the same 1.8V supply and enable control logic.