18QHTF21-8.867238-PD

Overview

The 18QHTF21-8.867238-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 8.867238 MHz with an LVCMOS output signal. The device supports a supply voltage of 1.8V and includes a standby function for power down control. It is housed in a compact 4-SMD, No Lead package with dimensions of 0.079 inches in length and 0.063 inches in width (2.00 mm x 1.60 mm). This surface-mount component is designed for integration into electronic circuits requiring precise timing signals.

Feature Summary

• Provides stable LVCMOS clock signals at 8.867238 MHz
• Features low voltage operation at 1.8V
• Includes standby capability for power management

Applications

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

Procurement Notes

Verify the exact specifications from the official product datasheet before implementation. Confirm that the 1.8V supply voltage and LVCMOS output levels match your system requirements. Ensure the 4-SMD no-lead package footprint aligns with your PCB layout design to guarantee proper mounting and electrical connectivity.

Selection Notes

Select this component when a specific frequency of 8.867238 MHz is required for timing applications. Consider the 1.8V operating voltage constraint and the need for a standby feature. The small 4-SMD form factor makes it suitable for space-constrained designs where surface mount technology is preferred over through-hole alternatives.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in frequency control products. The manufacturer has been active in the crystal industry since 1973. The series typically offers various frequencies within a standardized surface-mount package, providing consistent performance characteristics across different model variants for timing-critical applications.

Replacement Considerations

Direct substitutes must match the 8.867238 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pin compatibility and thermal characteristics before swapping. Cross-reference with other Mercury Electronics models or equivalent oscillators from manufacturers offering identical electrical and mechanical specifications.