18QHTF21-26.9865-PD

Oscillators Overview

The 18QHTF21-26.9865-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 26.9865 MHz with LVCMOS output logic. The device requires a 1.8V supply voltage and features a power-down function for standby mode control. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Oscillators Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes power-down functionality to reduce power consumption during standby
• Utilizes a small form factor 4-SMD no lead package design

Oscillators Applications

• Digital signal processing systems requiring precise clock timing
• Communication equipment utilizing standard frequency references
• Embedded systems with low voltage power constraints

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply rail is stable and within the operational limits specified in the official datasheet. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions to prevent assembly issues.

Oscillators Selection Notes

Select this component when a standard LVCMOS clock source is required at approximately 27 MHz. Consider the 1.8V operating voltage and power-down capability for energy-efficient designs. Evaluate the small 4-SMD package size against available board space constraints compared to larger oscillator packages.

Oscillators Part Context

This part belongs to the Mercury Electronics XO series, which provides standard frequency oscillators. The model number indicates the specific frequency variant within the 18QHTF21 family. These components are designed for general-purpose timing applications in consumer and industrial electronics.

Oscillators Replacement Considerations

Check for direct substitutes from Mercury Electronics with identical pinout and electrical specifications. Verify that alternative vendors offer components with matching LVCMOS outputs and 1.8V operation. Ensure any replacement maintains the same physical package dimensions for board compatibility.