18QHTF21-26.6649-PD

Oscillators Overview

The 18QHTF21-26.6649-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 26.6649 MHz and utilizes LVCMOS output logic levels. The device is designed for operation with a supply voltage of 1.8V. It features a power-down capability, allowing the unit to enter a standby mode when not in active use. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes power-down functionality for energy management
• Utilizes LVCMOS output interface

Oscillators Applications

• General clock signal generation
• Embedded system timing references
• Portable electronic devices requiring low power consumption

Oscillators Procurement Notes

Verify that the specific part number matches the required frequency and voltage specifications before procurement. Ensure the ordering suffix corresponds to the desired packaging or tape-and-reel configuration if applicable. Confirm compatibility with the target circuit's load requirements and thermal constraints. Cross-reference the manufacturer's latest documentation to ensure the component meets current industry standards and availability status.

Oscillators Selection Notes

Select this component when a precise 26.6649 MHz clock source is required within space-constrained designs. The choice is driven by the need for low-voltage operation and integrated power management capabilities. Consider the small form factor for high-density PCB layouts. Evaluate the LVCMOS output compatibility against the receiving digital logic family to ensure proper signal integrity without additional level shifting.

Oscillators Part Context

This oscillator belongs to the Mercury Electronics XO series, which focuses on providing stable timing solutions for consumer and industrial electronics. The brand has a history of manufacturing quartz-based frequency control products. This specific model represents a standard output variant designed for general-purpose applications where size and power efficiency are critical design parameters.

Oscillators Replacement Considerations

Direct substitutes must match the 26.6649 MHz frequency, 1.8V supply, and 4-SMD package dimensions. Verify pinout compatibility and electrical characteristics such as rise/fall times. Check for equivalent power-down behavior and LVCMOS drive strength. Consult manufacturer cross-reference lists for verified alternative part numbers.