18QHTF21-27.5808-PD

Oscillators Overview

The 18QHTF21-27.5808-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 27.5808 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a power-down function for standby mode control. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm.

Oscillators Feature Summary

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

Oscillators Applications

• Digital signal processing systems
• Communication equipment timing
• Embedded controller clock sources

Oscillators Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against your system design before procurement. Confirm that the 1.8V supply voltage aligns with your target circuit's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout specifications to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a precise 27.5808 MHz reference is required for LVCMOS-compatible digital circuits. Consider the 1.8V supply constraint and the necessity for a power-down feature to manage system power consumption. Evaluate the 2.0x1.6mm package size against available board space constraints to ensure compatibility with your manufacturing process.

Oscillators Part Context

This oscillator belongs to Mercury Electronics' QHTF series, designed for high-frequency applications requiring stable timing signals. The manufacturer specializes in quartz crystals and oscillators, leveraging decades of experience in frequency control technologies. This specific model represents a standard XO solution optimized for compact electronic devices needing reliable clock generation.

Oscillators Replacement Considerations

Cross-reference with other 27.5808 MHz LVCMOS oscillators in 4-SMD packages. Verify equivalent electrical parameters including voltage tolerance and current consumption. Ensure thermal characteristics match the original specification to maintain system reliability under identical operating conditions.