18QHTF21-26.563828-PD

Oscillators Overview

The 18QHTF21-26.563828-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 26.563828 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. This component is designed for surface-mount applications requiring precise clock signals.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby and power-down functionality
• Utilizes LVCMOS output logic
• Compact 4-SMD no-lead package design

Oscillators Applications

• Digital signal processing systems
• Communication equipment clocking
• Microcontroller timing references
• Portable electronic devices

Oscillators 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 2.0x1.6mm 4-SMD no-lead package specifications to guarantee proper soldering and mechanical stability during assembly processes.

Oscillators Selection Notes

Select this model when a precise 26.563828 MHz clock source is required for LVCMOS-compatible circuits. Consider the 1.8V operating voltage constraint and the need for power-down capabilities. The small form factor makes it suitable for space-constrained designs. Evaluate thermal performance and frequency stability needs relative to the standard specification provided by the manufacturer.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within the same physical package. The series provides standardized LVCMOS outputs and consistent 1.8V operation across different frequency options. The 'PD' suffix indicates the inclusion of power-down functionality, distinguishing it from standard continuous-operation variants within the same product line.

Oscillators Replacement Considerations

Direct substitutes must match the 26.563828 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pin compatibility and electrical characteristics such as phase noise and jitter if critical. Alternative parts from other manufacturers require careful validation of timing parameters and thermal behavior to ensure functional equivalence.