18QHTF21-26.8436-OE

Oscillators Overview

The 18QHTF21-26.8436-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 26.8436 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. This component is designed for applications requiring precise timing signals in low-voltage digital circuits.

Oscillators Feature Summary

• Provides stable clock signal generation at 26.8436 MHz
• Supports low voltage operation at 1.8V
• Includes hardware enable/disable functionality
• Utilizes surface-mount packaging for automated assembly

Oscillators Applications

• Digital signal processing systems
• Communication equipment timing references
• Microcontroller clock sources
• Consumer electronics timing circuits

Oscillators Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against your specific circuit design before procurement. Ensure that the 1.8V supply rail meets the current consumption specifications outlined in the official datasheet. Confirm that the PCB footprint matches the 4-SMD no-lead package dimensions to prevent assembly errors during manufacturing.

Oscillators Selection Notes

Select this component when a precise 26.8436 MHz reference is required for LVCMOS-compatible logic families. Consider the 1.8V operating voltage constraint and ensure compatibility with existing power rails. The small 2.0x1.6mm form factor makes it suitable for space-constrained designs where standard through-hole oscillators cannot fit.

Oscillators Part Context

This part belongs to the Mercury Electronics XO series, which specializes in quartz-based frequency control products. The manufacturer has decades of experience in Taiwan's quartz industry. The 18QHTF21 series typically offers standard performance levels suitable for general-purpose timing applications rather than high-end RF or military specifications.

Oscillators Replacement Considerations

Direct substitutes include other 26.8436 MHz LVCMOS oscillators in 4-SMD packages from manufacturers like Epson, NDK, or SiTime. Verify pinout compatibility and electrical parameters such as phase noise and jitter if replacing with different brands.