18QHTF21-2.2222-PD

Oscillators Overview

The 18QHTF21-2.2222-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a fixed frequency of 2.2222 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a power-down standby function to reduce consumption. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0x1.6 mm. The component complies with RoHS standards and has a Moisture Sensitivity Level (MSL) rating of 1, indicating unlimited exposure to ambient conditions.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V with LVCMOS output compatibility
• Includes power-down standby functionality for energy efficiency
• Utilizes a small form-factor 4-SMD no-lead surface mount package

Oscillators Applications

• General clock signal generation in electronic circuits
• Timing reference for digital systems requiring 2.2222 MHz stability
• Portable devices utilizing low-power oscillator requirements

Oscillators Procurement Notes

Verify the specific ordering suffix against official Mercury Electronic documentation to ensure correct voltage and package configuration. Confirm RoHS compliance status and MSL handling requirements prior to assembly. Cross-reference the part number with authorized distributors to validate authenticity and current availability status before finalizing procurement orders.

Oscillators Selection Notes

Select this component when a precise 2.2222 MHz timing source is required within a 1.8V system environment. The choice is driven by the need for a compact SMD footprint and integrated power management capabilities. Ensure the application supports LVCMOS logic levels and can accommodate the specified operating temperature range defined in the manufacturer datasheet.

Oscillators Part Context

This oscillator belongs to the QHTF series from Mercury Electronic Ind. Co., Ltd., a manufacturer established in 1973 specializing in frequency control products. The series includes various quartz-based oscillators and crystals. This specific model represents a standard XO variant optimized for modern low-voltage digital applications requiring reliable clock signals in minimal space.

Oscillators Replacement Considerations

Direct substitutes include other models within the 18QHTF21 series such as 18QHTF21-50.2067-PD or 18QHTF21-18.1059-PD, provided the frequency difference is acceptable for the design. Verify pinout and electrical characteristics match before substitution.