18QHTF21-44.230769-OE

Oscillators Overview

The 18QHTF21-44.230769-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 44.230769 MHz with a base resonator type of crystal. The device features LVCMOS output logic and requires a supply voltage of 1.8V. Maximum current consumption is specified at 23 mA, while frequency stability is rated at 50 ppm. The component is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• Utilizes a crystal base resonator for stable frequency generation
• Supports LVCMOS output logic levels
• Operates on a 1.8V power supply
• Housed in a 4-SMD no lead surface-mount package

Oscillators Applications

• Digital signal processing systems
• Communication equipment timing circuits
• Embedded microcontroller clock sources

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 footprint matches your PCB layout constraints. Cross-reference the manufacturer datasheet for detailed electrical characteristics and thermal specifications to guarantee reliable operation under expected environmental conditions.

Oscillators Selection Notes

Select this component when a precise 44.230769 MHz clock source is required for low-voltage digital circuits. Consider the 50 ppm stability rating for applications sensitive to frequency drift. The LVCMOS interface ensures compatibility with standard logic families. Evaluate the 23 mA current draw against your power budget. The small form factor makes it suitable for space-constrained designs where surface mounting is preferred over through-hole technologies.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in frequency control products. The series typically offers various standard frequencies in a compact SMD package. Mercury Electronics has a long history in quartz crystal manufacturing, providing components for industrial and consumer electronics. This specific model represents a standard XO variant optimized for general-purpose timing applications requiring moderate stability.

Oscillators Replacement Considerations

Direct substitutes must match the 44.230769 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify equivalent stability ratings and current consumption. Check pinout compatibility if available. Consult manufacturer cross-reference lists for approved alternatives. Ensure any replacement maintains the same operating temperature range and physical dimensions for seamless integration into existing designs.