18QHTF21-34.400-PD

Oscillators Overview

The 18QHTF21-34.400-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 34.4 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a power-down feature for standby mode control. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.00mm x 1.60mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes power-down functionality for energy efficiency
• Utilizes LVCMOS output logic for digital interface compatibility

Oscillators Applications

• General clock signal generation in embedded systems
• Timing reference for digital communication interfaces
• Power-sensitive 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 4-SMD no-lead package footprint matches your PCB layout constraints. Check for any specific RoHS compliance documentation if required by your manufacturing standards.

Oscillators Selection Notes

Select this component when a precise 34.4 MHz timing source is required in space-constrained applications. The LVCMOS output is suitable for direct interfacing with standard digital logic families. Consider the power-down feature if battery life or thermal management is a critical design factor. Ensure the operating temperature range meets the environmental conditions of the final application.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which focuses on surface-mount crystal oscillators. The series typically offers various frequencies and voltage options within a small form factor. Mercury Electronics specializes in quartz crystals and timing components, providing solutions for consumer electronics and industrial applications requiring reliable frequency control.

Oscillators Replacement Considerations

Direct substitutes include other 34.4 MHz LVCMOS oscillators in a 2.0x1.6mm package from manufacturers like Epson or NDK. Verify pinout compatibility and electrical specifications such as phase noise and jitter before substitution.