18QHTF21-49.420-OE

Overview

The 18QHTF21-49.420-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 49.42 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

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

Applications

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

Procurement Notes

Verify the specific suffix (OE) against the manufacturer's official datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure the 1.8V supply voltage aligns with your system power rails. Confirm the 4-SMD package dimensions fit your PCB footprint constraints before finalizing procurement.

Selection Notes

Select this component when a 49.42 MHz clock source is required with low voltage operation. Consider the enable/disable feature if power management or clock gating is necessary. Verify that the LVCMOS output swing is compatible with the receiving logic levels of your target application circuit.

Part Context

This part belongs to the Mercury Electronics 18QHTF series of standard crystal oscillators. The series offers various frequencies and voltage options. Mercury Electronics is a Taiwan-based manufacturer specializing in quartz crystals, oscillators, and filters, providing timing solutions for electronic industries since 1973.

Replacement Considerations

Check for direct substitutes from Mercury Electronics with identical frequency and package. Cross-reference other manufacturers offering 49.42 MHz LVCMOS oscillators in 4-SMD packages, ensuring voltage and enable pin compatibility.