18QHTF21-13.39239-PD

Overview

The 18QHTF21-13.39239-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 13.39239 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby or power-down capability to reduce consumption during inactive periods. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• Supports low-voltage operation at 1.8V with LVCMOS output compatibility
• Includes standby mode functionality for power management
• Utilizes a lead-free SMD package for automated assembly

Applications

• General-purpose digital circuit timing
• Embedded systems requiring stable clock sources
• Consumer electronics with space constraints

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before ordering. Confirm that the 1.8V supply rail is stable and within the operational limits specified in the official datasheet. Ensure PCB layout guidelines for 4-SMD no-lead packages are followed to maintain signal integrity and thermal performance.

Selection Notes

Select this component when a 13.39239 MHz clock signal is required with low power consumption capabilities. The LVCMOS interface ensures compatibility with standard digital logic families. Consider the 1.8V operating voltage constraint and the availability of standby modes for energy-efficient designs compared to higher voltage alternatives.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which focuses on small-form-factor oscillators. The series typically offers various frequencies and voltage options. The 'PD' suffix likely indicates specific packaging or testing parameters defined by the manufacturer, consistent with other parts in this product line.

Replacement Considerations

Direct substitutes include other 18QHTF21 variants with identical pinout and form factor but different frequencies, such as 18QHTF21-13.5600-PD, provided the frequency difference is acceptable for the application. Cross-referencing with other manufacturers requires matching LVCMOS output, 1.8V supply, and 4-SMD no-lead package dimensions.