18QHTF21-29.4471-PD

Oscillators Overview

The 18QHTF21-29.4471-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 29.4471 MHz with LVCMOS output logic. The device requires a 1.8V supply voltage and features a Standby (Power Down) control 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 timing applications requiring precise clock signals in low-voltage digital systems.

Oscillators Feature Summary

• Supports Standby (Power Down) mode for power management
• LVCMOS output logic compatibility
• Compact 4-SMD No Lead surface mount package

Oscillators Applications

• Digital signal processing circuits
• Communication equipment clock generation
• Embedded system timing references

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 2.0x1.6mm 4-SMD No Lead package specifications to guarantee proper soldering and electrical connection during assembly.

Oscillators Selection Notes

Select this component when a precise 29.4471 MHz clock source is required in space-constrained designs. The LVCMOS interface ensures compatibility with standard digital logic families. Consider the standby feature if power efficiency is critical. Verify operating temperature range suitability for the intended environment compared to alternative oscillators in the same series.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series typically offers various frequencies within a small form factor. The 'PD' suffix indicates the inclusion of a power-down pin or functionality. These components are generally used as primary clock sources in portable electronics and industrial control modules where size and power consumption are key constraints.

Oscillators Replacement Considerations

Direct replacements must match the 29.4471 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Check datasheets for equivalent parts from other manufacturers ensuring identical pinout and mechanical dimensions. Verify that any substitute supports the same standby control mechanism and meets the required frequency stability specifications.