18QHTF21-10.4857-PD

Overview

The 18QHTF21-10.4857-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 10.4857 MHz and utilizes LVCMOS output logic for digital signal interfacing. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. It features a power-down mode to reduce consumption when not in use. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• LVCMOS output logic for standard digital compatibility
• Integrated standby or power-down functionality
• Low voltage operation at 1.8V
• Compact 4-SMD no-lead surface mount package

Applications

• General purpose clock signal generation
• Digital system timing references
• Embedded controller clock sources

Procurement Notes

Verify the manufacturer part number 18QHTF21-10.4857-PD against official Mercury Electronics documentation to ensure authenticity. Confirm that the specific suffix PD corresponds to the required power-down feature and packaging type. Request datasheets directly from authorized distributors or the manufacturer to validate electrical specifications and lead times prior to ordering.

Selection Notes

Select this component when a precise 10.4857 MHz clock source is required with low power consumption capabilities. The 1.8V supply requirement makes it suitable for modern low-voltage digital circuits. Ensure the PCB layout supports the 4-SMD no-lead footprint and that the LVCMOS output levels are compatible with the receiving logic inputs.

Part Context

This model belongs to the Mercury Electronics SMD oscillator series, which provides various frequencies and packages. The 18QHTF21 designation indicates a specific form factor within their quartz-based timing product line. These oscillators are engineered for reliability in consumer and industrial electronics where stable frequency control is essential.

Replacement Considerations

Direct substitutes must match the 10.4857 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and thermal characteristics before swapping. Cross-reference with other manufacturers' equivalent low-profile oscillators if Mercury Electronics stock is unavailable.

FAQ

What is the output logic type of the 18QHTF21-10.4857-PD?

The output logic type is LVCMOS (Low Voltage Complementary Metal-Oxide-Semiconductor).

Does this oscillator support a power-down mode?

Yes, the component includes a standby or power-down function to reduce power consumption.