18QHTF21-35.840-PD

Oscillators Overview

The 18QHTF21-35.840-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 35.840 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package. The component complies with RoHS standards and holds an MSL level of 1, indicating unlimited dry shelf life sensitivity.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Integrates standby mode for power reduction
• Features LVCMOS digital output interface
• Complies with RoHS environmental regulations

Oscillators Applications

• General clock signal generation
• Digital system timing references
• Embedded controller synchronization

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before integration. Confirm that the 1.8V supply rail stability meets the oscillator's operational specifications. Ensure PCB layout adheres to noise immunity guidelines for sensitive clock signals. Check for any specific handling instructions related to the no-lead package type during assembly processes.

Oscillators Selection Notes

Select this component when a precise 35.840 MHz reference is required for low-power applications. The LVCMOS output ensures compatibility with standard digital logic families. The 1.8V operating voltage makes it suitable for modern portable and battery-operated devices. Consider the 4-SMD form factor for space-constrained board designs requiring surface-mount assembly.

Oscillators Part Context

Mercury Electronics Ind. Co. Ltd has been manufacturing frequency control products since 1973. As a pioneer in the Taiwan quartz crystal industry, the company offers a wide range of oscillators. This model belongs to the QHTF series, designed for standard clocking needs with reliable performance and compact packaging solutions.

Oscillators Replacement Considerations

Direct substitutes must match the 35.840 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and thermal characteristics. Cross-reference with other manufacturers offering identical electrical parameters and mechanical dimensions to ensure seamless integration without redesign.