18QHTF21-2.21184-PD

Oscillators Overview

The 18QHTF21-2.21184-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 2.21184 MHz and utilizes LVCMOS output logic levels. The device requires a 1.8V supply voltage and features a standby mode for power down functionality. It is housed in a compact 4-SMD, No Lead package suitable for surface-mount assembly.

Oscillators Feature Summary

• Supports low-power operation with dedicated standby mode
• Provides stable timing signals via LVCMOS interface
• Designed for space-constrained surface-mount applications

Oscillators Applications

• Battery-powered portable electronic devices
• General-purpose digital circuit clocking
• Embedded system timing references

Oscillators Procurement Notes

Verify the specific suffix PD against official Mercury Electronics documentation to confirm lead-free status and tape-and-reel packaging specifications. Ensure the operating temperature range aligns with your environmental requirements before finalizing procurement orders.

Oscillators Selection Notes

Select this component when a precise 2.21184 MHz reference is required with minimal power consumption. The 1.8V supply requirement makes it suitable for modern low-voltage logic families. Consider the 4-SMD footprint constraints during PCB layout design.

Oscillators Part Context

This model belongs to the 18QHTF21 series from Mercury Electronic Ind. Co. Ltd, a manufacturer established in Taiwan specializing in quartz crystals and oscillators since 1973. The series typically offers various frequencies within a standardized small outline package format.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 variants such as 18QHTF21-18.080-PD or 18QHTF21-8.0004-PD if different frequencies are acceptable. Verify pin compatibility and electrical parameters before cross-referencing.