18QHTF21-13.39239-OE

Overview

The 18QHTF21-13.39239-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 13.39239 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes an enable/disable control function. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications in electronic circuits requiring precise timing signals.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable and disable control functionality
• Compact 4-SMD no-lead surface mount package design

Applications

• General purpose clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Confirm that the 1.8V supply voltage aligns with the target system power rails. Ensure the 4-SMD footprint matches the PCB layout constraints. Check for any specific operating temperature range limitations defined in the component specifications to guarantee reliability under intended environmental conditions.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside LVCMOS signaling standards. The enable/disable feature offers power management flexibility compared to always-on oscillators. Consider the small form factor of the 4-SMD package for space-constrained designs. Validate that the 13.39239 MHz frequency meets the specific clocking needs of the target application without requiring external dividers or multipliers.

Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series typically offers various frequencies and voltage options within a consistent SMD package family. Similar models include variants like 18QHTF21-9.000-OE and 18QHTF21-50.256-OE, sharing the same physical dimensions and basic electrical characteristics but differing in frequency and potentially voltage levels.

Replacement Considerations

Direct substitutes must match the 13.39239 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and electrical parameters such as jitter and phase noise if critical. Cross-reference with other manufacturers' 4-pin SMD oscillators offering identical frequency and voltage specs.