18QHTF21-24.5454-OE

Oscillators Overview

The 18QHTF21-24.5454-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 24.545 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, requiring a 1.8V supply voltage. It features an enable/disable control function to manage power consumption. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. This surface-mount oscillator is suitable for timing applications in portable electronics and digital systems requiring precise clock signals.

Oscillators Feature Summary

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

Oscillators Applications

• Portable consumer electronics requiring low power consumption
• Digital signal processing circuits needing stable clock sources
• Embedded systems utilizing 1.8V logic families

Oscillators Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against your circuit design specifications before procurement. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions. Confirm that the 1.8V supply voltage aligns with your system's power rails. Check for any specific reflow soldering profile recommendations provided by the manufacturer to ensure reliable assembly and long-term performance.

Oscillators Selection Notes

Select this component when a low-profile, low-voltage clock source is required for LVCMOS-compatible digital circuits. The integrated enable pin allows for dynamic power control, making it ideal for battery-operated devices. Consider the operating temperature range and stability requirements of your application to ensure the standard XO meets your timing accuracy needs compared to TCXO alternatives.

Oscillators Part Context

This part belongs to Mercury's QuikXO series of fast-delivery CMOS output clock oscillators. The series offers various frequencies within a defined range, catering to diverse timing needs. Mercury Electronic has been manufacturing frequency control products since 1973, establishing itself as a pioneer in the Taiwan crystal industry. The company specializes in quartz crystals, oscillators, and filters for global electronic markets.

Oscillators Replacement Considerations

Direct substitutes include other 24.545 MHz LVCMOS oscillators in 2.0x1.6mm packages from manufacturers like Epson or SiTime, provided pinouts and electrical characteristics match. Verify that alternative parts support the same 1.8V supply and enable/disable logic polarity. Cross-reference mechanical dimensions to ensure compatibility with existing PCB layouts without redesign.