18QHTF21-39.936-OE

Oscillators Overview

The 18QHTF21-39.936-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 39.936 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications with a supply voltage of 1.8V. It features an enable/disable control function to manage power consumption. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.

Oscillators Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable/disable control functionality
• Compact 4-SMD no-lead surface mount package

Oscillators Applications

• General purpose clock signal generation
• Digital system timing references
• Embedded controller clock sources

Oscillators Procurement Notes

Verify the specific operating voltage requirement of 1.8V against the target circuit design. Confirm that the LVCMOS output levels are compatible with the receiving logic inputs. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions specified in the official datasheet to guarantee proper soldering and mechanical stability during operation.

Oscillators Selection Notes

Select this component when a precise 39.936 MHz reference is required for low-power digital systems. The choice depends on the necessity for an enable pin to manage active standby states. Consider the physical size constraints of the 4-SMD package relative to available board space. Evaluate the thermal environment to ensure stable operation within the specified temperature range without additional compensation.

Oscillators Part Context

This part belongs to the Mercury Electronics 18QHTF series of standard crystal oscillators. The series provides various frequencies with consistent LVCMOS outputs and low-voltage operation. The manufacturer specializes in quartz-based frequency control products, including crystals, filters, and oscillators, serving industries requiring reliable timing solutions.

Oscillators Replacement Considerations

Direct substitutes include other 39.936 MHz LVCMOS oscillators in 4-SMD packages from different manufacturers. Verify pinout compatibility and electrical specifications before swapping. Alternative models from the same family may offer different voltage options or package sizes.