18QHTF21-26.168889-PD

Oscillators Overview

The 18QHTF21-26.168889-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd, operating at a fixed frequency of 26.168889 MHz. It utilizes LVCMOS output logic and functions with a supply voltage of 1.8V. The device features a standby mode for power down control. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0mm x 1.6mm. The component is designed for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• Generates a stable 26.168889 MHz clock signal using LVCMOS logic levels
• Operates on a single 1.8V power supply rail
• Includes standby functionality to reduce power consumption during idle states
• Utilizes a small form-factor 4-SMD no-lead package for space-constrained designs

Oscillators Applications

• Digital signal processing systems requiring precise clock synchronization
• Communication equipment utilizing standard frequency references
• Embedded systems with low-voltage logic interfaces

Oscillators Procurement Notes

Verify the specific ordering suffix PD against the manufacturer's current datasheet to ensure compatibility with required pin configurations and electrical specifications. Confirm that the 1.8V supply requirement aligns with the target system design. Check for any recent revisions to the 18QHTF21 series documentation regarding tolerance or temperature range updates before finalizing procurement orders.

Oscillators Selection Notes

Select this component when a fixed 26.168889 MHz frequency is strictly required rather than a programmable range. Ensure the host circuit supports LVCMOS input thresholds and provides a stable 1.8V supply. Consider the 4-SMD package size if board real estate is limited. Verify that the operating temperature range meets the environmental conditions of the intended application.

Oscillators Part Context

This part belongs to the Mercury Electronics 18QHTF21 series of surface-mount oscillators. The series typically offers various frequencies and supply voltages within a standardized footprint. The 'PD' suffix indicates specific packaging or handling characteristics defined by the manufacturer. This series is positioned for general-purpose timing applications in consumer and industrial electronics.

Oscillators Replacement Considerations

Direct substitutes must match the 26.168889 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Cross-reference with other manufacturers offering identical pinouts and electrical parameters to ensure functional interchangeability without redesigning the PCB layout.