18QHTF21-40.7125-OE

Oscillators Overview

The 18QHTF21-40.7125-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 40.7125 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications, requiring a 1.8V supply voltage. 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 processes.

Oscillators Feature Summary

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

Oscillators Applications

• General purpose clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints. Cross-reference the datasheet for thermal and electrical specifications to guarantee reliable operation under intended operating conditions.

Oscillators Selection Notes

Select this component when a precise 40.7125 MHz clock source is required with low voltage operation. The LVCMOS output ensures compatibility with standard digital logic families. Consider the enable/disable feature if power efficiency is a priority. The small form factor makes it suitable for space-constrained designs. Verify environmental ratings match the deployment location.

Oscillators Part Context

This part belongs to the Mercury Electronics XO series, which includes various frequencies and packages. The '18' prefix typically indicates the 1.8V supply voltage requirement. The 'QHTF21' suffix denotes the specific package type and performance class within the manufacturer's catalog. Similar parts in this family may differ in frequency or voltage but share the same fundamental oscillator architecture.

Oscillators Replacement Considerations

Direct substitutes must match the 40.7125 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and electrical parameters such as jitter and phase noise. Check for equivalent enable/disable functionality. Consult the manufacturer's cross-reference list for approved replacements.