18QHTF21-4.200-OE

Oscillators Overview

The 18QHTF21-4.200-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a nominal frequency of 4.2 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, featuring a supply voltage of 1.8V. It includes an active high enable/disable control function to manage power consumption. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm, suitable for surface-mount assembly.

Oscillators Feature Summary

• LVCMOS output interface for digital logic compatibility
• Active high enable/disable pin for power management
• Compact 4-SMD no-lead surface mount package

Oscillators Applications

• Portable electronic devices requiring low power consumption
• Communication systems utilizing standard clock signals
• Embedded microcontroller clock sources

Oscillators Procurement Notes

Verify the specific suffix against official Mercury Electronics documentation to confirm electrical characteristics and pinout configuration. Ensure the ordering part number matches the required frequency tolerance and load capacitance specifications for the target application circuit design requirements.

Oscillators Selection Notes

Select this component when a 1.8V supply voltage is required alongside a 4.2 MHz clock signal. Consider the small footprint for space-constrained designs. Verify that the LVCMOS output swing meets the input threshold requirements of the receiving logic gate or microcontroller interface.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronic Ind. Co., Ltd., a supplier specializing in quartz timing components. The series typically offers various frequencies within a standardized 2.0x1.6mm package format, providing consistent mechanical dimensions across different frequency options for board layout flexibility.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 series variants with identical package dimensions and 1.8V operation, such as the 18QHTF21-7.200-OE or 18QHTF21-8.6436-OE, provided the frequency difference is acceptable for the system timing requirements.