18QHTF21-18.0024-PD

Oscillators Overview

The 18QHTF21-18.0024-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 18.0024 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a standby power-down function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. This component is designed for applications requiring precise clock signals with low power consumption.

Oscillators Feature Summary

• Supports standby mode via power-down control
• Utilizes LVCMOS output interface
• Compact surface-mount form factor

Oscillators Applications

• Digital signal processing systems
• Communication equipment clocking
• Embedded microcontroller timing

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the system design specifications before procurement. Ensure that the 1.8V supply voltage aligns with the target circuit's power rails. Confirm that the 4-SMD no-lead package footprint matches the PCB layout to avoid assembly issues. Check for any RoHS compliance documentation if required by project regulations.

Oscillators Selection Notes

Select this oscillator when a precise 18.0024 MHz reference is needed with minimal power usage. The LVCMOS output is suitable for direct interfacing with standard digital logic families. Consider the small 2.0x1.6mm package size for space-constrained designs. Evaluate the need for the standby feature to manage power during idle periods in portable or battery-operated devices.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies within a standardized 2.0x1.6mm package. These components are widely used in consumer electronics and industrial applications where reliable clock generation is critical. The 'PD' suffix indicates the inclusion of a power-down pin for enhanced power management capabilities.

Oscillators Replacement Considerations

Direct replacements must match the 18.0024 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify electrical parameters such as phase noise and jitter against the original datasheet. Ensure thermal characteristics and operating temperature ranges are compatible with the application environment.