18QHTF21-28.060-OE

Oscillators Overview

The 18QHTF21-28.060-OE is a standard frequency XO oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 28.06 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features enable/disable functionality for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. The unit supports an operating temperature range from -40°C to 85°C and exhibits a frequency stability of ±50ppm.

Oscillators Feature Summary

• Supports active low or high enable/disable control for power optimization
• Provides stable LVCMOS clock signals for digital circuit synchronization
• Designed for surface mount assembly in space-constrained applications

Oscillators Applications

• Portable electronic devices requiring low power consumption
• Communication equipment utilizing standard clock frequencies
• Embedded systems needing precise timing references

Oscillators Procurement Notes

Verify the specific ordering suffix OE against the manufacturer's current datasheet to ensure compatibility with required voltage levels and output types. Confirm that the 4-SMD no lead package matches the PCB footprint design. Check for any recent updates to the RoHS compliance status or material declarations before finalizing procurement orders.

Oscillators Selection Notes

Select this component when a 28.06 MHz frequency is specifically required for system timing. Ensure the 1.8V supply voltage aligns with the target platform's power rails. Consider the ±50ppm stability requirement against the system's jitter tolerance. The small 2.0x1.6mm footprint makes it suitable for dense layouts where larger oscillators cannot fit.

Oscillators Part Context

This part belongs to the Mercury Electronics SMD oscillator series, which includes various frequency options within the same physical package. The 18QHTF21 prefix indicates the specific series characteristics, while the numeric suffix denotes the exact frequency. It shares mechanical dimensions with other variants in the family but differs electrically based on the programmed frequency.

Oscillators Replacement Considerations

Direct substitutes must match the 28.06 MHz frequency, 1.8V supply, and LVCMOS output. Verify pinout compatibility for the 4-SMD no lead package. Cross-reference with Mercury Electronics' official replacement lists for updated revisions.