18QHTF21-30.900-OE

Oscillators Overview

The 18QHTF21-30.900-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 30.9 MHz and utilizes LVCMOS output logic levels. The component is designed for low-voltage applications, requiring a supply voltage of 1.8V. It features an enable/disable control function to manage power consumption. The device is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.

Oscillators Feature Summary

• Supports active high/low enable and disable functionality for power management
• Generates stable clock signals using LVCMOS output interface
• Utilizes a leadless surface-mount package design for automated placement

Oscillators Applications

• General purpose digital clock signal generation
• Microcontroller system timing references
• Embedded electronic circuit synchronization

Oscillators Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against the target application environment before procurement. Ensure that the PCB footprint matches the 4-SMD no-lead package dimensions specified in the official datasheet. Confirm that the 1.8V supply rail provides sufficient current capability for the oscillator's startup and steady-state operation without voltage droop.

Oscillators Selection Notes

Select this component when a 30.9 MHz clock source with LVCMOS compatibility is required. Consider the 1.8V supply constraint and the need for software-controllable enable/disable states. Evaluate the thermal performance and stability requirements of the end product to ensure the standard oscillator grade meets the operational specifications compared to higher precision alternatives.

Oscillators Part Context

This part belongs to the QHTF series of quartz crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options. The '18' prefix indicates the 1.8V supply variant, while '30.900' denotes the specific frequency. This model represents a standard commercial-grade solution for basic timing needs within the manufacturer's portfolio.

Oscillators Replacement Considerations

Direct substitutes include other 30.9 MHz LVCMOS oscillators with identical 1.8V supply and 4-SMD no-lead footprints. Verify pinout compatibility and electrical parameters such as rise/fall times and duty cycle before swapping manufacturers.