18QHTF57-24.4912-PD

Oscillators Overview

The 18QHTF57-24.4912-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 24.4912 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a power-down standby function for energy efficiency. It is housed in a 4-SMD, no-lead package with dimensions of 7.0mm x 5.0mm. The unit supports an operating temperature range from -40°C to 85°C and maintains a frequency stability of ±50 ppm.

Oscillators Feature Summary

• LVCMOS output interface compatible with standard digital logic circuits
• Integrated power-down mode for reduced current consumption during standby
• Surface-mount construction suitable for automated PCB assembly processes

Oscillators Applications

• Digital signal processing systems requiring precise clock timing
• Communication equipment utilizing standard serial protocols
• Embedded microcontroller units needing stable clock sources

Oscillators Procurement Notes

Verify the specific suffix configuration against the manufacturer's latest documentation to ensure compatibility with required voltage levels and load conditions. Confirm that the 1.8V supply requirement aligns with the target system design before procurement. Check for any recent lifecycle status updates or alternative pin-compatible replacements if long-term availability is a concern.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is mandatory for the system architecture. Ensure the PCB layout accommodates the 7.0x5.0mm footprint and allows for adequate thermal management within the specified temperature range. Consider the ±50 ppm stability requirement against the overall system timing budget to verify performance adequacy.

Oscillators Part Context

This model belongs to the HFTF series of surface-mount oscillators from Mercury Electronics. The series is designed for applications requiring small form factors and low power consumption. The 'PD' suffix typically indicates the inclusion of a power-down control feature, distinguishing it from standard continuous-operation variants within the same family.

Oscillators Replacement Considerations

Direct substitutes must match the 24.4912 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package dimensions. Verify that any replacement part offers equivalent frequency stability and operating temperature ranges to maintain system reliability without redesigning the host circuitry.