18QHTF21-106.666-PD

Overview

The 18QHTF21-106.666-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 106.666 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes a standby or power-down feature for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. This component is designed for applications requiring precise clock signals in space-constrained electronic systems.

Feature Summary

• Integrates LVCMOS output logic for standard digital interface compatibility
• Supports standby mode to reduce power consumption during idle periods
• Utilizes a leadless surface-mount package for automated assembly

Applications

• General purpose clock signal generation in embedded systems
• Timing reference for digital communication interfaces
• Clock source for microcontrollers and processors requiring 1.8V operation

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 PCB footprint matches the 4-SMD no-lead package dimensions provided in the official datasheet to prevent soldering issues. Check for any specific handling instructions regarding electrostatic discharge protection during storage and installation.

Selection Notes

Select this component when a stable 106.666 MHz clock is required with low voltage operation. Consider the LVCMOS output level compatibility with downstream logic gates. Evaluate the thermal performance within the specified operating temperature range. Compare the physical size constraints against alternative packages if space is limited. Verify that the power-down feature meets the system's power management strategy.

Part Context

This part belongs to the Mercury Electronics XO series, which provides frequency control solutions. The manufacturer has extensive experience in quartz crystal production. The product line includes various oscillators such as TCXOs and VCXOs. This specific model represents a standard fixed-frequency option suitable for general timing applications without frequency tuning capabilities.

Replacement Considerations

Direct substitutes must match the 106.666 MHz frequency, 1.8V supply, and LVCMOS output. Compatible alternatives include other 4-SMD no-lead oscillators from different manufacturers with identical pinout and electrical characteristics. Verify that replacement parts meet the same temperature and stability specifications.