18QHTF21-18.500-PD

Oscillators Overview

The 18QHTF21-18.500-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 18.5 MHz and utilizes LVCMOS output logic levels. The device is designed for low-power applications, featuring a supply voltage of 1.8V and a standby mode for power-down functionality. It is housed in a compact 4-SMD, No Lead package with dimensions suitable for space-constrained designs.

Oscillators Feature Summary

• LVCMOS output interface for digital compatibility
• Integrated standby mode for power management
• Compact surface-mount package design

Oscillators Applications

• Low-power embedded systems
• Portable electronic devices
• Digital signal processing circuits

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure that the 1.8V supply voltage aligns with your system's power rails. Confirm the 4-SMD no-lead package footprint matches your PCB layout to avoid assembly issues. Check for any specific handling instructions regarding electrostatic discharge sensitivity during installation.

Oscillators Selection Notes

Select this component when a precise 18.5 MHz clock source is required with minimal power consumption. The LVCMOS output ensures direct interfacing with standard digital logic without additional level shifting. Consider the operating temperature range and stability specifications if the application involves environmental variations. The standby feature makes it suitable for battery-operated devices requiring extended life.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in frequency control products. The manufacturer has a long history in quartz crystal production, emphasizing reliability and precision. This series is designed to meet the demands of modern electronics for smaller, more efficient timing solutions.

Oscillators Replacement Considerations

Direct substitutes may include other 18.5 MHz LVCMOS oscillators in a 4-SMD no-lead package from compatible manufacturers. Verify pinout compatibility and electrical parameters such as supply voltage and output swing. Ensure that the replacement part meets the same thermal and stability requirements for seamless integration.