18QHTF21-38.4175-PD

Oscillators Overview

The 18QHTF21-38.4175-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 38.4175 MHz and utilizes LVCMOS output logic levels. The device is designed for a supply voltage of 1.8V and features a standby or power-down mode capability to reduce consumption when inactive. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V with LVCMOS compatibility
• Includes standby functionality for power management
• Utilizes a lead-free SMD package for automated assembly

Oscillators Applications

• Digital signal processing systems requiring precise clock timing
• Communication equipment utilizing standard frequency references
• Embedded control units needing low-power oscillation sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before ordering. Confirm that the 1.8V supply rail is stable within the operational limits defined in the official datasheet. Ensure the PCB footprint matches the 4-SMD No Lead package dimensions to guarantee proper soldering and mechanical stability during reflow processes.

Oscillators Selection Notes

Choose this component when a 38.4175 MHz reference is required with low voltage constraints. Consider the LVCMOS interface for direct logic compatibility. Evaluate the thermal performance and operating temperature range to ensure reliability under environmental stress. Compare package size against available board space to confirm fitment without compromising adjacent components.

Oscillators Part Context

This oscillator belongs to the Mercury Electronics QHT series, which focuses on small-form-factor timing solutions. The series typically offers various frequencies and voltage options. The 'PD' suffix indicates power-down capability. This model represents a specific frequency variant within the broader family of surface-mount crystal oscillators produced by the manufacturer.

Oscillators Replacement Considerations

Direct substitutes must match the 38.4175 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Verify pinout compatibility and electrical characteristics such as jitter and phase noise. Consult the manufacturer's cross-reference list for approved alternatives ensuring identical functional parameters.