18QHTF21-39.501-OE

Oscillators Overview

The 18QHTF21-39.501-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 39.501 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, designed for surface-mount applications requiring precise timing signals.

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 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 enable pin logic levels are compatible with the controlling microcontroller or FPGA to prevent unintended oscillator states during operation.

Oscillators Selection Notes

Select this component when a stable 39.501 MHz reference is required in space-constrained designs. The LVCMOS output is suitable for low-voltage digital logic families. Consider the enable feature if power management or clock gating is necessary within the application architecture. Verify thermal performance within the specified operating temperature range.

Oscillators Part Context

This part belongs to the Mercury Electronics XO series, characterized by small form factors and standard LVCMOS outputs. The manufacturer specializes in quartz-based frequency control products, including crystals, TCXOs, and OCXOs. This specific model represents a standard fixed-frequency solution for general electronic timing needs.

Oscillators Replacement Considerations

Check for direct substitutes from Mercury Electronics with identical pinouts and electrical characteristics. Other manufacturers may offer equivalent 39.501 MHz LVCMOS oscillators in 4-SMD packages, but verify voltage and enable logic compatibility carefully.