18QHTF21-27.683055-PD

Oscillators Overview

The 18QHTF21-27.683055-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 27.683055 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. It features a standby or power-down function to manage energy consumption when not in active use. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm, suitable for surface-mount assembly processes.

Oscillators Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby mode functionality for power management
• Utilizes a leadless surface-mount package design

Oscillators Applications

• Digital signal processing systems
• Communication equipment clocking
• Embedded microcontroller timing sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout specifications. Check for any RoHS compliance documentation if required by your manufacturing standards.

Oscillators Selection Notes

Select this component when a precise 27.683055 MHz reference is needed for LVCMOS-compatible circuits. Consider the 1.8V operating voltage constraint relative to other available supply options. Evaluate the physical size constraints imposed by the 2.0x1.6mm package against board space limitations. Assess the need for power-down capabilities in battery-operated or energy-sensitive designs.

Oscillators Part Context

This oscillator belongs to Mercury Electronics' QHTF series of surface-mount crystal oscillators. The series is characterized by small form factors and low power consumption. Mercury Electronics specializes in frequency control products, including crystals and oscillators, with a long history in the industry. This specific model represents a standard XO variant within their portfolio.

Oscillators Replacement Considerations

Direct substitutes must match the 27.683055 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and thermal characteristics. Cross-reference part numbers from other manufacturers offering identical electrical specifications and mechanical dimensions.