18QHTF21-12.583-OE

Overview

The 18QHTF21-12.583-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 12.583 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 3.2mm x 2.5mm. The component is designed for surface-mount applications within specified operating temperature ranges.

Feature Summary

• Integrates LVCMOS output logic for standard digital interface compatibility
• Features integrated enable and disable control functionality
• Utilizes a low-profile 4-SMD no-lead surface mount package

Applications

• General-purpose clock signal generation
• Embedded system timing references
• Consumer electronics circuit boards

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application design before procurement. Confirm that the 1.8V supply voltage aligns with the system power architecture. Ensure the PCB footprint matches the 3.2x2.5mm SMD package dimensions to prevent assembly errors during manufacturing.

Selection Notes

Select this component when a 12.583 MHz clock source is required with low-voltage operation. Consider the enable pin feature if power management or clock gating is necessary. Compare package size constraints against alternative oscillators to ensure mechanical fit within the designated board area.

Part Context

This part belongs to the Mercury Electronic 18QHTF series of standard XO oscillators. The series offers various frequencies and voltage options. The 18QHTF21 variant specifically denotes the 3.2x2.5mm form factor. This model provides a cost-effective timing solution for mass-produced electronic devices requiring stable frequency references.

Replacement Considerations

Direct substitutes include other 12.583 MHz LVCMOS oscillators in 3.2x2.5mm packages from different manufacturers. Verify electrical parameter equivalence, particularly supply voltage and output swing levels, before substitution.