18QHTF21-10.240-OE

Overview

The 18QHTF21-10.240-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 10.24 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage range that includes 1.8V operation and features an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• Provides stable clock signals via LVCMOS output interface
• Includes hardware enable/disable pin for power control
• Compact 4-SMD no-lead surface mount packaging

Applications

• General purpose digital circuit timing
• Embedded system clock generation
• Consumer electronics timing references

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 2.0x1.6mm footprint matches your PCB layout constraints. Check for any specific reflow soldering profile recommendations provided in the official datasheet to ensure reliable assembly.

Selection Notes

Select this component when a low-voltage, small-footprint oscillator with enable functionality is required. Consider the 10.24 MHz frequency suitability for your specific data rates or processor clocks. Evaluate the LVCMOS output compatibility with your receiving logic inputs. Compare power consumption characteristics if battery life is a critical design factor.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within a standardized 2.0x1.6mm SMD package. The series typically provides standard XO performance with optional enable pins. Other variants in this family share the same physical dimensions and electrical interface but differ in operating frequency and potentially specific stability parameters.

Replacement Considerations

Direct replacements must match the 10.24 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD 2.0x1.6mm package. Verify that substitute parts offer comparable phase noise and jitter specifications. Ensure the replacement also includes an enable/disable feature if required by the design. Cross-reference with Mercury's other 18QHTF21 variants only if frequency differences are acceptable.